1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
17 #include <drv_types.h>
18 #include <rtw_debug.h>
19 #include <linux/jiffies.h>
22 static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
23 static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
25 u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
26 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
27 u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
29 void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS);
31 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
33 memset((u8 *)psta_recvpriv, 0, sizeof(struct sta_recv_priv));
35 spin_lock_init(&psta_recvpriv->lock);
37 /* for (i = 0; i<MAX_RX_NUMBLKS; i++) */
38 /* _rtw_init_queue(&psta_recvpriv->blk_strms[i]); */
40 _rtw_init_queue(&psta_recvpriv->defrag_q);
43 sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
46 union recv_frame *precvframe;
49 /* We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
50 /* memset((unsigned char *)precvpriv, 0, sizeof (struct recv_priv)); */
52 spin_lock_init(&precvpriv->lock);
54 _rtw_init_queue(&precvpriv->free_recv_queue);
55 _rtw_init_queue(&precvpriv->recv_pending_queue);
56 _rtw_init_queue(&precvpriv->uc_swdec_pending_queue);
58 precvpriv->adapter = padapter;
60 precvpriv->free_recvframe_cnt = NR_RECVFRAME;
62 precvpriv->pallocated_frame_buf = vzalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ);
64 if (precvpriv->pallocated_frame_buf == NULL) {
68 /* memset(precvpriv->pallocated_frame_buf, 0, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); */
70 precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
71 /* precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf + RXFRAME_ALIGN_SZ - */
72 /* ((SIZE_PTR) (precvpriv->pallocated_frame_buf) &(RXFRAME_ALIGN_SZ-1)); */
74 precvframe = (union recv_frame *) precvpriv->precv_frame_buf;
77 for (i = 0; i < NR_RECVFRAME; i++) {
78 INIT_LIST_HEAD(&(precvframe->u.list));
80 list_add_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue));
82 res = rtw_os_recv_resource_alloc(padapter, precvframe);
84 precvframe->u.hdr.len = 0;
86 precvframe->u.hdr.adapter = padapter;
91 res = rtw_hal_init_recv_priv(padapter);
93 rtw_init_timer(&precvpriv->signal_stat_timer, padapter, rtw_signal_stat_timer_hdl);
95 precvpriv->signal_stat_sampling_interval = 2000; /* ms */
97 rtw_set_signal_stat_timer(precvpriv);
103 void _rtw_free_recv_priv(struct recv_priv *precvpriv)
105 struct adapter *padapter = precvpriv->adapter;
107 rtw_free_uc_swdec_pending_queue(padapter);
109 rtw_os_recv_resource_free(precvpriv);
111 if (precvpriv->pallocated_frame_buf)
112 vfree(precvpriv->pallocated_frame_buf);
114 rtw_hal_free_recv_priv(padapter);
117 union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
120 union recv_frame *precvframe;
121 struct list_head *plist, *phead;
122 struct adapter *padapter;
123 struct recv_priv *precvpriv;
125 if (list_empty(&pfree_recv_queue->queue))
128 phead = get_list_head(pfree_recv_queue);
130 plist = get_next(phead);
132 precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
134 list_del_init(&precvframe->u.hdr.list);
135 padapter = precvframe->u.hdr.adapter;
136 if (padapter != NULL) {
137 precvpriv = &padapter->recvpriv;
138 if (pfree_recv_queue == &precvpriv->free_recv_queue)
139 precvpriv->free_recvframe_cnt--;
145 union recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
147 union recv_frame *precvframe;
149 spin_lock_bh(&pfree_recv_queue->lock);
151 precvframe = _rtw_alloc_recvframe(pfree_recv_queue);
153 spin_unlock_bh(&pfree_recv_queue->lock);
158 int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue)
160 struct adapter *padapter = precvframe->u.hdr.adapter;
161 struct recv_priv *precvpriv = &padapter->recvpriv;
163 rtw_os_free_recvframe(precvframe);
166 spin_lock_bh(&pfree_recv_queue->lock);
168 list_del_init(&(precvframe->u.hdr.list));
170 precvframe->u.hdr.len = 0;
172 list_add_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue));
174 if (padapter != NULL) {
175 if (pfree_recv_queue == &precvpriv->free_recv_queue)
176 precvpriv->free_recvframe_cnt++;
178 spin_unlock_bh(&pfree_recv_queue->lock);
185 sint _rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
188 struct adapter *padapter = precvframe->u.hdr.adapter;
189 struct recv_priv *precvpriv = &padapter->recvpriv;
191 /* INIT_LIST_HEAD(&(precvframe->u.hdr.list)); */
192 list_del_init(&(precvframe->u.hdr.list));
195 list_add_tail(&(precvframe->u.hdr.list), get_list_head(queue));
197 if (padapter != NULL)
198 if (queue == &precvpriv->free_recv_queue)
199 precvpriv->free_recvframe_cnt++;
204 sint rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
208 /* _spinlock(&pfree_recv_queue->lock); */
209 spin_lock_bh(&queue->lock);
210 ret = _rtw_enqueue_recvframe(precvframe, queue);
211 /* spin_unlock(&pfree_recv_queue->lock); */
212 spin_unlock_bh(&queue->lock);
218 sint rtw_enqueue_recvframe(union recv_frame *precvframe, struct __queue *queue)
220 return rtw_free_recvframe(precvframe, queue);
228 caller : defrag ; recvframe_chk_defrag in recv_thread (passive)
229 pframequeue: defrag_queue : will be accessed in recv_thread (passive)
231 using spinlock to protect
235 void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue)
237 union recv_frame *precvframe;
238 struct list_head *plist, *phead;
240 spin_lock(&pframequeue->lock);
242 phead = get_list_head(pframequeue);
243 plist = get_next(phead);
245 while (phead != plist) {
246 precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
248 plist = get_next(plist);
250 rtw_free_recvframe(precvframe, pfree_recv_queue);
253 spin_unlock(&pframequeue->lock);
256 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter)
259 union recv_frame *pending_frame;
260 while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) {
261 rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue);
266 DBG_871X(FUNC_ADPT_FMT" dequeue %d\n", FUNC_ADPT_ARG(adapter), cnt);
272 sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queue)
274 spin_lock_bh(&queue->lock);
276 list_del_init(&precvbuf->list);
277 list_add(&precvbuf->list, get_list_head(queue));
279 spin_unlock_bh(&queue->lock);
284 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue)
286 spin_lock_bh(&queue->lock);
288 list_del_init(&precvbuf->list);
290 list_add_tail(&precvbuf->list, get_list_head(queue));
291 spin_unlock_bh(&queue->lock);
296 struct recv_buf *rtw_dequeue_recvbuf(struct __queue *queue)
298 struct recv_buf *precvbuf;
299 struct list_head *plist, *phead;
301 spin_lock_bh(&queue->lock);
303 if (list_empty(&queue->queue))
306 phead = get_list_head(queue);
308 plist = get_next(phead);
310 precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list);
312 list_del_init(&precvbuf->list);
316 spin_unlock_bh(&queue->lock);
322 sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe);
323 sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe)
326 sint i, res = _SUCCESS;
329 u8 bmic_err = false, brpt_micerror = true;
330 u8 *pframe, *payload, *pframemic;
332 /* u8 *iv, rxdata_key_idx = 0; */
333 struct sta_info *stainfo;
334 struct rx_pkt_attrib *prxattrib = &precvframe->u.hdr.attrib;
335 struct security_priv *psecuritypriv = &adapter->securitypriv;
337 struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
338 struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
340 stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
342 if (prxattrib->encrypt == _TKIP_) {
343 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt == _TKIP_\n"));
344 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",
345 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
347 /* calculate mic code */
348 if (stainfo != NULL) {
349 if (IS_MCAST(prxattrib->ra)) {
350 /* mickey =&psecuritypriv->dot118021XGrprxmickey.skey[0]; */
351 /* iv = precvframe->u.hdr.rx_data+prxattrib->hdrlen; */
352 /* rxdata_key_idx =(((iv[3])>>6)&0x3) ; */
353 mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
355 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
356 /* DBG_871X("\n recvframe_chkmic: bcmc key psecuritypriv->dot118021XGrpKeyid(%d), pmlmeinfo->key_index(%d) , recv key_id(%d)\n", */
357 /* psecuritypriv->dot118021XGrpKeyid, pmlmeinfo->key_index, rxdata_key_idx); */
359 if (psecuritypriv->binstallGrpkey == false) {
361 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
362 DBG_871X("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
366 mickey = &stainfo->dot11tkiprxmickey.skey[0];
367 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));
370 datalen = precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;/* icv_len included the mic code */
371 pframe = precvframe->u.hdr.rx_data;
372 payload = pframe+prxattrib->hdrlen+prxattrib->iv_len;
374 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len =%d prxattrib->icv_len =%d\n", prxattrib->iv_len, prxattrib->icv_len));
377 rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0], (unsigned char)prxattrib->priority); /* care the length of the data */
379 pframemic = payload+datalen;
383 for (i = 0; i < 8; i++) {
384 if (miccode[i] != *(pframemic+i)) {
385 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x) ", i, miccode[i], i, *(pframemic+i)));
391 if (bmic_err == true) {
393 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",
394 *(pframemic-8), *(pframemic-7), *(pframemic-6), *(pframemic-5), *(pframemic-4), *(pframemic-3), *(pframemic-2), *(pframemic-1)));
395 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",
396 *(pframemic-16), *(pframemic-15), *(pframemic-14), *(pframemic-13), *(pframemic-12), *(pframemic-11), *(pframemic-10), *(pframemic-9)));
400 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet (len =%d) ======\n", precvframe->u.hdr.len));
401 for (i = 0; i < precvframe->u.hdr.len; i = i+8) {
402 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x",
403 *(precvframe->u.hdr.rx_data+i), *(precvframe->u.hdr.rx_data+i+1),
404 *(precvframe->u.hdr.rx_data+i+2), *(precvframe->u.hdr.rx_data+i+3),
405 *(precvframe->u.hdr.rx_data+i+4), *(precvframe->u.hdr.rx_data+i+5),
406 *(precvframe->u.hdr.rx_data+i+6), *(precvframe->u.hdr.rx_data+i+7)));
408 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n ======demp packet end [len =%d]======\n", precvframe->u.hdr.len));
409 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n hrdlen =%d,\n", prxattrib->hdrlen));
412 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ra = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey =%d ",
413 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2],
414 prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5], psecuritypriv->binstallGrpkey));
416 /* double check key_index for some timing issue , */
417 /* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */
418 if ((IS_MCAST(prxattrib->ra) == true) && (prxattrib->key_index != pmlmeinfo->key_index))
419 brpt_micerror = false;
421 if ((prxattrib->bdecrypted == true) && (brpt_micerror == true)) {
422 rtw_handle_tkip_mic_err(adapter, (u8)IS_MCAST(prxattrib->ra));
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);
426 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted));
427 DBG_871X(" mic error :prxattrib->bdecrypted =%d\n", prxattrib->bdecrypted);
434 if ((psecuritypriv->bcheck_grpkey == false) && (IS_MCAST(prxattrib->ra) == true)) {
435 psecuritypriv->bcheck_grpkey = true;
436 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("psecuritypriv->bcheck_grpkey =true"));
441 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo == NULL!!!\n"));
443 recvframe_pull_tail(precvframe, 8);
452 /* decrypt and set the ivlen, icvlen of the recv_frame */
453 union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame);
454 union recv_frame *decryptor(struct adapter *padapter, union recv_frame *precv_frame)
457 struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib;
458 struct security_priv *psecuritypriv = &padapter->securitypriv;
459 union recv_frame *return_packet = precv_frame;
462 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt);
464 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n", prxattrib->bdecrypted, prxattrib->encrypt));
466 if (prxattrib->encrypt > 0) {
467 u8 *iv = precv_frame->u.hdr.rx_data+prxattrib->hdrlen;
468 prxattrib->key_index = (((iv[3])>>6)&0x3);
470 if (prxattrib->key_index > WEP_KEYS) {
471 DBG_871X("prxattrib->key_index(%d) > WEP_KEYS\n", prxattrib->key_index);
473 switch (prxattrib->encrypt) {
476 prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex;
481 prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid;
487 if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0) || (psecuritypriv->sw_decrypt == true))) {
488 psecuritypriv->hw_decrypted = false;
490 #ifdef DBG_RX_DECRYPTOR
491 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
494 prxattrib->bdecrypted,
496 psecuritypriv->hw_decrypted);
499 switch (prxattrib->encrypt) {
502 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_wep);
503 rtw_wep_decrypt(padapter, (u8 *)precv_frame);
506 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_tkip);
507 res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame);
510 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_aes);
511 res = rtw_aes_decrypt(padapter, (u8 *)precv_frame);
516 } else if (prxattrib->bdecrypted == 1
517 && prxattrib->encrypt > 0
518 && (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)
520 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_hw);
522 psecuritypriv->hw_decrypted = true;
523 #ifdef DBG_RX_DECRYPTOR
524 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
527 prxattrib->bdecrypted,
529 psecuritypriv->hw_decrypted);
533 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_unknown);
534 #ifdef DBG_RX_DECRYPTOR
535 DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n",
538 prxattrib->bdecrypted,
540 psecuritypriv->hw_decrypted);
545 rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
546 return_packet = NULL;
548 prxattrib->bdecrypted = true;
550 return return_packet;
553 /* set the security information in the recv_frame */
554 union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame);
555 union recv_frame *portctrl(struct adapter *adapter, union recv_frame *precv_frame)
557 u8 *psta_addr = NULL;
560 struct recv_frame_hdr *pfhdr;
561 struct sta_info *psta;
562 struct sta_priv *pstapriv;
563 union recv_frame *prtnframe;
565 u16 eapol_type = 0x888e;/* for Funia BD's WPA issue */
566 struct rx_pkt_attrib *pattrib;
568 pstapriv = &adapter->stapriv;
570 auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
572 ptr = get_recvframe_data(precv_frame);
573 pfhdr = &precv_frame->u.hdr;
574 pattrib = &pfhdr->attrib;
575 psta_addr = pattrib->ta;
579 psta = rtw_get_stainfo(pstapriv, psta_addr);
581 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm =%d\n", adapter->securitypriv.dot11AuthAlgrthm));
584 if ((psta != NULL) && (psta->ieee8021x_blocked)) {
588 /* only accept EAPOL frame */
589 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 1\n"));
591 prtnframe = precv_frame;
594 ptr = ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE;
595 memcpy(&be_tmp, ptr, 2);
596 ether_type = ntohs(be_tmp);
598 if (ether_type == eapol_type)
599 prtnframe = precv_frame;
601 /* free this frame */
602 rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue);
607 /* check decryption status, and decrypt the frame if needed */
608 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:psta->ieee8021x_blocked == 0\n"));
609 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:precv_frame->hdr.attrib.privacy =%x\n", precv_frame->u.hdr.attrib.privacy));
611 if (pattrib->bdecrypted == 0)
612 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("portctrl:prxstat->decrypted =%x\n", pattrib->bdecrypted));
614 prtnframe = precv_frame;
615 /* check is the EAPOL frame or not (Rekey) */
616 /* if (ether_type == eapol_type) { */
617 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("########portctrl:ether_type == 0x888e\n")); */
620 /* prtnframe =precv_frame; */
623 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:ether_type = 0x%04x\n", ether_type)); */
627 prtnframe = precv_frame;
632 sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache);
633 sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache)
635 sint tid = precv_frame->u.hdr.attrib.priority;
637 u16 seq_ctrl = ((precv_frame->u.hdr.attrib.seq_num&0xffff) << 4) |
638 (precv_frame->u.hdr.attrib.frag_num & 0xf);
641 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n", seq_ctrl, tid));
646 if (1) { /* if (bretry) */
647 if (seq_ctrl == prxcache->tid_rxseq[tid]) {
648 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]));
654 prxcache->tid_rxseq[tid] = seq_ctrl;
660 void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame);
661 void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame)
663 unsigned char pwrbit;
664 u8 *ptr = precv_frame->u.hdr.rx_data;
665 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
666 struct sta_priv *pstapriv = &padapter->stapriv;
667 struct sta_info *psta = NULL;
669 psta = rtw_get_stainfo(pstapriv, pattrib->src);
671 pwrbit = GetPwrMgt(ptr);
675 if (!(psta->state & WIFI_SLEEP_STATE)) {
676 /* psta->state |= WIFI_SLEEP_STATE; */
677 /* pstapriv->sta_dz_bitmap |= BIT(psta->aid); */
679 stop_sta_xmit(padapter, psta);
681 /* DBG_871X("to sleep, sta_dz_bitmap =%x\n", pstapriv->sta_dz_bitmap); */
684 if (psta->state & WIFI_SLEEP_STATE) {
685 /* psta->state ^= WIFI_SLEEP_STATE; */
686 /* pstapriv->sta_dz_bitmap &= ~BIT(psta->aid); */
688 wakeup_sta_to_xmit(padapter, psta);
690 /* DBG_871X("to wakeup, sta_dz_bitmap =%x\n", pstapriv->sta_dz_bitmap); */
697 void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame);
698 void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame)
700 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
701 struct sta_priv *pstapriv = &padapter->stapriv;
702 struct sta_info *psta = NULL;
704 psta = rtw_get_stainfo(pstapriv, pattrib->src);
709 if (!psta->qos_option)
712 if (!(psta->qos_info&0xf))
715 if (psta->state&WIFI_SLEEP_STATE) {
718 switch (pattrib->priority) {
721 wmmps_ac = psta->uapsd_bk&BIT(1);
725 wmmps_ac = psta->uapsd_vi&BIT(1);
729 wmmps_ac = psta->uapsd_vo&BIT(1);
734 wmmps_ac = psta->uapsd_be&BIT(1);
739 if (psta->sleepq_ac_len > 0)
740 /* process received triggered frame */
741 xmit_delivery_enabled_frames(padapter, psta);
743 /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */
744 issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0);
749 void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta);
750 void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info *sta)
753 struct sta_info *psta = NULL;
754 struct stainfo_stats *pstats = NULL;
755 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
756 struct recv_priv *precvpriv = &padapter->recvpriv;
758 sz = get_recvframe_len(prframe);
759 precvpriv->rx_bytes += sz;
761 padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++;
763 if ((!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst))) {
764 padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++;
770 psta = prframe->u.hdr.psta;
773 pstats = &psta->sta_stats;
775 pstats->rx_data_pkts++;
776 pstats->rx_bytes += sz;
779 traffic_check_for_leave_lps(padapter, false, 0);
782 sint sta2sta_data_frame(
783 struct adapter *adapter,
784 union recv_frame *precv_frame,
785 struct sta_info **psta
787 sint sta2sta_data_frame(
788 struct adapter *adapter,
789 union recv_frame *precv_frame,
790 struct sta_info **psta
793 u8 *ptr = precv_frame->u.hdr.rx_data;
795 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
796 struct sta_priv *pstapriv = &adapter->stapriv;
797 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
798 u8 *mybssid = get_bssid(pmlmepriv);
799 u8 *myhwaddr = myid(&adapter->eeprompriv);
801 sint bmcast = IS_MCAST(pattrib->dst);
803 /* DBG_871X("[%s] %d, seqnum:%d\n", __func__, __LINE__, pattrib->seq_num); */
805 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
806 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
808 /* filter packets that SA is myself or multicast or broadcast */
809 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
810 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
815 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
820 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
821 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
822 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
827 sta_addr = pattrib->src;
829 } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
830 /* For Station mode, sa and bssid should always be BSSID, and DA is my mac-address */
831 if (memcmp(pattrib->bssid, pattrib->src, ETH_ALEN)) {
832 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("bssid != TA under STATION_MODE; drop pkt\n"));
837 sta_addr = pattrib->bssid;
838 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
840 /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */
841 if (!IS_MCAST(pattrib->bssid)) {
845 } else{ /* not mc-frame */
846 /* For AP mode, if DA is non-MCAST, then it must be BSSID, and bssid == BSSID */
847 if (memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) {
852 sta_addr = pattrib->src;
855 } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) {
856 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
857 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
858 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
859 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
860 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
869 *psta = rtw_get_bcmc_stainfo(adapter);
871 *psta = rtw_get_stainfo(pstapriv, sta_addr); /* get ap_info */
874 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
883 sint ap2sta_data_frame(
884 struct adapter *adapter,
885 union recv_frame *precv_frame,
886 struct sta_info **psta);
887 sint ap2sta_data_frame(
888 struct adapter *adapter,
889 union recv_frame *precv_frame,
890 struct sta_info **psta)
892 u8 *ptr = precv_frame->u.hdr.rx_data;
893 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
895 struct sta_priv *pstapriv = &adapter->stapriv;
896 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
897 u8 *mybssid = get_bssid(pmlmepriv);
898 u8 *myhwaddr = myid(&adapter->eeprompriv);
899 sint bmcast = IS_MCAST(pattrib->dst);
901 if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true)
902 && (check_fwstate(pmlmepriv, _FW_LINKED) == true
903 || check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
906 /* filter packets that SA is myself or multicast or broadcast */
907 if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
908 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA ==myself\n"));
909 #ifdef DBG_RX_DROP_FRAME
910 DBG_871X("DBG_RX_DROP_FRAME %s SA ="MAC_FMT", myhwaddr ="MAC_FMT"\n",
911 __func__, MAC_ARG(pattrib->src), MAC_ARG(myhwaddr));
917 /* da should be for me */
918 if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
919 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
920 (" ap2sta_data_frame: compare DA fail; DA ="MAC_FMT"\n", MAC_ARG(pattrib->dst)));
921 #ifdef DBG_RX_DROP_FRAME
922 DBG_871X("DBG_RX_DROP_FRAME %s DA ="MAC_FMT"\n", __func__, MAC_ARG(pattrib->dst));
930 if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
931 !memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
932 (memcmp(pattrib->bssid, mybssid, ETH_ALEN))) {
933 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
934 (" ap2sta_data_frame: compare BSSID fail ; BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid)));
935 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid)));
936 #ifdef DBG_RX_DROP_FRAME
937 DBG_871X("DBG_RX_DROP_FRAME %s BSSID ="MAC_FMT", mybssid ="MAC_FMT"\n",
938 __func__, MAC_ARG(pattrib->bssid), MAC_ARG(mybssid));
939 DBG_871X("this adapter = %d, buddy adapter = %d\n", adapter->adapter_type, adapter->pbuddystruct adapter->adapter_type);
943 DBG_871X("issue_deauth to the nonassociated ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
944 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
952 *psta = rtw_get_bcmc_stainfo(adapter);
954 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get ap_info */
957 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("ap2sta: can't get psta under STATION_MODE ; drop pkt\n"));
958 #ifdef DBG_RX_DROP_FRAME
959 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under STATION_MODE ; drop pkt\n", __func__);
965 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
968 if (GetFrameSubType(ptr) & BIT(6)) {
969 /* No data, will not indicate to upper layer, temporily count it here */
970 count_rx_stats(adapter, precv_frame, *psta);
971 ret = RTW_RX_HANDLED;
975 } else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) &&
976 (check_fwstate(pmlmepriv, _FW_LINKED) == true)) {
977 memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
978 memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
979 memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
980 memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
981 memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
984 memcpy(pattrib->bssid, mybssid, ETH_ALEN);
987 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */
989 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under MP_MODE ; drop pkt\n"));
990 #ifdef DBG_RX_DROP_FRAME
991 DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under WIFI_MP_STATE ; drop pkt\n", __func__);
998 } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
1000 ret = RTW_RX_HANDLED;
1003 if (!memcmp(myhwaddr, pattrib->dst, ETH_ALEN) && (!bmcast)) {
1004 *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */
1005 if (*psta == NULL) {
1007 /* for AP multicast issue , modify by yiwei */
1008 static unsigned long send_issue_deauth_time;
1010 /* DBG_871X("After send deauth , %u ms has elapsed.\n", jiffies_to_msecs(jiffies - send_issue_deauth_time)); */
1012 if (jiffies_to_msecs(jiffies - send_issue_deauth_time) > 10000 || send_issue_deauth_time == 0) {
1013 send_issue_deauth_time = jiffies;
1015 DBG_871X("issue_deauth to the ap =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid));
1017 issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1023 #ifdef DBG_RX_DROP_FRAME
1024 DBG_871X("DBG_RX_DROP_FRAME %s fw_state:0x%x\n", __func__, get_fwstate(pmlmepriv));
1032 sint sta2ap_data_frame(
1033 struct adapter *adapter,
1034 union recv_frame *precv_frame,
1035 struct sta_info **psta);
1036 sint sta2ap_data_frame(
1037 struct adapter *adapter,
1038 union recv_frame *precv_frame,
1039 struct sta_info **psta)
1041 u8 *ptr = precv_frame->u.hdr.rx_data;
1042 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1043 struct sta_priv *pstapriv = &adapter->stapriv;
1044 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1045 unsigned char *mybssid = get_bssid(pmlmepriv);
1046 sint ret = _SUCCESS;
1048 if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
1049 /* For AP mode, RA =BSSID, TX =STA(SRC_ADDR), A3 =DST_ADDR */
1050 if (memcmp(pattrib->bssid, mybssid, ETH_ALEN)) {
1055 *psta = rtw_get_stainfo(pstapriv, pattrib->src);
1056 if (*psta == NULL) {
1057 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under AP_MODE; drop pkt\n"));
1058 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1060 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1062 ret = RTW_RX_HANDLED;
1066 process_pwrbit_data(adapter, precv_frame);
1068 if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) {
1069 process_wmmps_data(adapter, precv_frame);
1072 if (GetFrameSubType(ptr) & BIT(6)) {
1073 /* No data, will not indicate to upper layer, temporily count it here */
1074 count_rx_stats(adapter, precv_frame, *psta);
1075 ret = RTW_RX_HANDLED;
1079 u8 *myhwaddr = myid(&adapter->eeprompriv);
1080 if (memcmp(pattrib->ra, myhwaddr, ETH_ALEN)) {
1081 ret = RTW_RX_HANDLED;
1084 DBG_871X("issue_deauth to sta =" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src));
1085 issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
1086 ret = RTW_RX_HANDLED;
1094 sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame);
1095 sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame)
1097 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1098 struct sta_priv *pstapriv = &padapter->stapriv;
1099 u8 *pframe = precv_frame->u.hdr.rx_data;
1100 struct sta_info *psta = NULL;
1101 /* uint len = precv_frame->u.hdr.len; */
1103 /* DBG_871X("+validate_recv_ctrl_frame\n"); */
1105 if (GetFrameType(pframe) != WIFI_CTRL_TYPE)
1108 /* receive the frames that ra(a1) is my address */
1109 if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN))
1112 psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe));
1116 /* for rx pkt statistics */
1117 psta->sta_stats.rx_ctrl_pkts++;
1119 /* only handle ps-poll */
1120 if (GetFrameSubType(pframe) == WIFI_PSPOLL) {
1124 aid = GetAid(pframe);
1125 if (psta->aid != aid)
1128 switch (pattrib->priority) {
1131 wmmps_ac = psta->uapsd_bk&BIT(0);
1135 wmmps_ac = psta->uapsd_vi&BIT(0);
1139 wmmps_ac = psta->uapsd_vo&BIT(0);
1144 wmmps_ac = psta->uapsd_be&BIT(0);
1151 if (psta->state & WIFI_STA_ALIVE_CHK_STATE) {
1152 DBG_871X("%s alive check-rx ps-poll\n", __func__);
1153 psta->expire_to = pstapriv->expire_to;
1154 psta->state ^= WIFI_STA_ALIVE_CHK_STATE;
1157 if ((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) {
1158 struct list_head *xmitframe_plist, *xmitframe_phead;
1159 struct xmit_frame *pxmitframe = NULL;
1160 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1162 /* spin_lock_bh(&psta->sleep_q.lock); */
1163 spin_lock_bh(&pxmitpriv->lock);
1165 xmitframe_phead = get_list_head(&psta->sleep_q);
1166 xmitframe_plist = get_next(xmitframe_phead);
1168 if (xmitframe_phead != xmitframe_plist) {
1169 pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
1171 xmitframe_plist = get_next(xmitframe_plist);
1173 list_del_init(&pxmitframe->list);
1177 if (psta->sleepq_len > 0)
1178 pxmitframe->attrib.mdata = 1;
1180 pxmitframe->attrib.mdata = 0;
1182 pxmitframe->attrib.triggered = 1;
1184 /* DBG_871X("handling ps-poll, q_len =%d, tim =%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */
1186 rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
1188 if (psta->sleepq_len == 0) {
1189 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1191 /* DBG_871X("after handling ps-poll, tim =%x\n", pstapriv->tim_bitmap); */
1193 /* upate BCN for TIM IE */
1194 /* update_BCNTIM(padapter); */
1195 update_beacon(padapter, _TIM_IE_, NULL, true);
1198 /* spin_unlock_bh(&psta->sleep_q.lock); */
1199 spin_unlock_bh(&pxmitpriv->lock);
1202 /* spin_unlock_bh(&psta->sleep_q.lock); */
1203 spin_unlock_bh(&pxmitpriv->lock);
1205 /* DBG_871X("no buffered packets to xmit\n"); */
1206 if (pstapriv->tim_bitmap&BIT(psta->aid)) {
1207 if (psta->sleepq_len == 0) {
1208 DBG_871X("no buffered packets to xmit\n");
1210 /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */
1211 issue_nulldata_in_interrupt(padapter, psta->hwaddr);
1213 DBG_871X("error!psta->sleepq_len =%d\n", psta->sleepq_len);
1214 psta->sleepq_len = 0;
1217 pstapriv->tim_bitmap &= ~BIT(psta->aid);
1219 /* upate BCN for TIM IE */
1220 /* update_BCNTIM(padapter); */
1221 update_beacon(padapter, _TIM_IE_, NULL, true);
1231 union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame);
1232 sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame);
1233 sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame)
1235 /* struct mlme_priv *pmlmepriv = &adapter->mlmepriv; */
1237 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n"));
1239 precv_frame = recvframe_chk_defrag(padapter, precv_frame);
1240 if (precv_frame == NULL) {
1241 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("%s: fragment packet\n", __func__));
1246 /* for rx pkt statistics */
1247 struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(precv_frame->u.hdr.rx_data));
1249 psta->sta_stats.rx_mgnt_pkts++;
1250 if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_BEACON)
1251 psta->sta_stats.rx_beacon_pkts++;
1252 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBEREQ)
1253 psta->sta_stats.rx_probereq_pkts++;
1254 else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBERSP) {
1255 if (!memcmp(padapter->eeprompriv.mac_addr, GetAddr1Ptr(precv_frame->u.hdr.rx_data), ETH_ALEN))
1256 psta->sta_stats.rx_probersp_pkts++;
1257 else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data))
1258 || is_multicast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data)))
1259 psta->sta_stats.rx_probersp_bm_pkts++;
1261 psta->sta_stats.rx_probersp_uo_pkts++;
1266 mgt_dispatcher(padapter, precv_frame);
1272 sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame);
1273 sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame)
1276 u8 *psa, *pda, *pbssid;
1277 struct sta_info *psta = NULL;
1278 u8 *ptr = precv_frame->u.hdr.rx_data;
1279 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1280 struct security_priv *psecuritypriv = &adapter->securitypriv;
1281 sint ret = _SUCCESS;
1283 bretry = GetRetry(ptr);
1286 pbssid = get_hdr_bssid(ptr);
1288 if (pbssid == NULL) {
1289 #ifdef DBG_RX_DROP_FRAME
1290 DBG_871X("DBG_RX_DROP_FRAME %s pbssid == NULL\n", __func__);
1296 memcpy(pattrib->dst, pda, ETH_ALEN);
1297 memcpy(pattrib->src, psa, ETH_ALEN);
1299 memcpy(pattrib->bssid, pbssid, ETH_ALEN);
1301 switch (pattrib->to_fr_ds) {
1303 memcpy(pattrib->ra, pda, ETH_ALEN);
1304 memcpy(pattrib->ta, psa, ETH_ALEN);
1305 ret = sta2sta_data_frame(adapter, precv_frame, &psta);
1309 memcpy(pattrib->ra, pda, ETH_ALEN);
1310 memcpy(pattrib->ta, pbssid, ETH_ALEN);
1311 ret = ap2sta_data_frame(adapter, precv_frame, &psta);
1315 memcpy(pattrib->ra, pbssid, ETH_ALEN);
1316 memcpy(pattrib->ta, psa, ETH_ALEN);
1317 ret = sta2ap_data_frame(adapter, precv_frame, &psta);
1321 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1322 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1324 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
1334 #ifdef DBG_RX_DROP_FRAME
1335 DBG_871X("DBG_RX_DROP_FRAME %s case:%d, res:%d\n", __func__, pattrib->to_fr_ds, ret);
1338 } else if (ret == RTW_RX_HANDLED) {
1344 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" after to_fr_ds_chk; psta == NULL\n"));
1345 #ifdef DBG_RX_DROP_FRAME
1346 DBG_871X("DBG_RX_DROP_FRAME %s psta == NULL\n", __func__);
1352 /* psta->rssi = prxcmd->rssi; */
1353 /* psta->signal_quality = prxcmd->sq; */
1354 precv_frame->u.hdr.psta = psta;
1358 pattrib->ack_policy = 0;
1359 /* parsing QC field */
1360 if (pattrib->qos == 1) {
1361 pattrib->priority = GetPriority((ptr + 24));
1362 pattrib->ack_policy = GetAckpolicy((ptr + 24));
1363 pattrib->amsdu = GetAMsdu((ptr + 24));
1364 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 32 : 26;
1366 if (pattrib->priority != 0 && pattrib->priority != 3)
1367 adapter->recvpriv.bIsAnyNonBEPkts = true;
1370 pattrib->priority = 0;
1371 pattrib->hdrlen = pattrib->to_fr_ds == 3 ? 30 : 24;
1375 if (pattrib->order)/* HT-CTRL 11n */
1376 pattrib->hdrlen += 4;
1378 precv_frame->u.hdr.preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority];
1380 /* decache, drop duplicate recv packets */
1381 if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == _FAIL) {
1382 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decache : drop pkt\n"));
1383 #ifdef DBG_RX_DROP_FRAME
1384 DBG_871X("DBG_RX_DROP_FRAME %s recv_decache return _FAIL\n", __func__);
1390 if (pattrib->privacy) {
1392 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("validate_recv_data_frame:pattrib->privacy =%x\n", pattrib->privacy));
1393 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)));
1395 GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra));
1397 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt =%d\n", pattrib->encrypt));
1399 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1401 pattrib->encrypt = 0;
1402 pattrib->iv_len = pattrib->icv_len = 0;
1409 static sint validate_80211w_mgmt(struct adapter *adapter, union recv_frame *precv_frame)
1411 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1412 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1413 u8 *ptr = precv_frame->u.hdr.rx_data;
1417 type = GetFrameType(ptr);
1418 subtype = GetFrameSubType(ptr); /* bit(7)~bit(2) */
1420 /* only support station mode */
1421 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED)
1422 && adapter->securitypriv.binstallBIPkey == true) {
1423 /* unicast management frame decrypt */
1424 if (pattrib->privacy && !(IS_MCAST(GetAddr1Ptr(ptr))) &&
1425 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC || subtype == WIFI_ACTION)) {
1426 u8 *ppp, *mgmt_DATA;
1428 ppp = GetAddr2Ptr(ptr);
1430 pattrib->bdecrypted = 0;
1431 pattrib->encrypt = _AES_;
1432 pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr);
1433 /* set iv and icv length */
1434 SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
1435 memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
1436 memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
1437 /* actual management data frame body */
1438 data_len = pattrib->pkt_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len;
1439 mgmt_DATA = rtw_zmalloc(data_len);
1440 if (mgmt_DATA == NULL) {
1441 DBG_871X("%s mgmt allocate fail !!!!!!!!!\n", __func__);
1442 goto validate_80211w_fail;
1444 precv_frame = decryptor(adapter, precv_frame);
1445 /* save actual management data frame body */
1446 memcpy(mgmt_DATA, ptr+pattrib->hdrlen+pattrib->iv_len, data_len);
1447 /* overwrite the iv field */
1448 memcpy(ptr+pattrib->hdrlen, mgmt_DATA, data_len);
1449 /* remove the iv and icv length */
1450 pattrib->pkt_len = pattrib->pkt_len - pattrib->iv_len - pattrib->icv_len;
1453 DBG_871X("%s mgmt descrypt fail !!!!!!!!!\n", __func__);
1454 goto validate_80211w_fail;
1456 } else if (IS_MCAST(GetAddr1Ptr(ptr)) &&
1457 (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC)) {
1458 sint BIP_ret = _SUCCESS;
1459 /* verify BIP MME IE of broadcast/multicast de-auth/disassoc packet */
1460 BIP_ret = rtw_BIP_verify(adapter, (u8 *)precv_frame);
1461 if (BIP_ret == _FAIL) {
1462 /* DBG_871X("802.11w BIP verify fail\n"); */
1463 goto validate_80211w_fail;
1464 } else if (BIP_ret == RTW_RX_HANDLED) {
1465 /* DBG_871X("802.11w recv none protected packet\n"); */
1466 /* issue sa query request */
1467 issue_action_SA_Query(adapter, NULL, 0, 0);
1468 goto validate_80211w_fail;
1470 } else { /* 802.11w protect */
1471 if (subtype == WIFI_ACTION) {
1472 /* according 802.11-2012 standard, these five types are not robust types */
1473 if (ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_PUBLIC &&
1474 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_HT &&
1475 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_UNPROTECTED_WNM &&
1476 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_SELF_PROTECTED &&
1477 ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_P2P) {
1478 DBG_871X("action frame category =%d should robust\n", ptr[WLAN_HDR_A3_LEN]);
1479 goto validate_80211w_fail;
1481 } else if (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC) {
1482 DBG_871X("802.11w recv none protected packet\n");
1483 /* issue sa query request */
1484 issue_action_SA_Query(adapter, NULL, 0, 0);
1485 goto validate_80211w_fail;
1491 validate_80211w_fail:
1496 static inline void dump_rx_packet(u8 *ptr)
1500 DBG_871X("#############################\n");
1501 for (i = 0; i < 64; i = i+8)
1502 DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i),
1503 *(ptr+i+1), *(ptr+i+2), *(ptr+i+3), *(ptr+i+4), *(ptr+i+5), *(ptr+i+6), *(ptr+i+7));
1504 DBG_871X("#############################\n");
1507 sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame);
1508 sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame)
1510 /* shall check frame subtype, to / from ds, da, bssid */
1512 /* then call check if rx seq/frag. duplicated. */
1516 sint retval = _SUCCESS;
1519 struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
1521 u8 *ptr = precv_frame->u.hdr.rx_data;
1522 u8 ver = (unsigned char) (*ptr)&0x3;
1524 /* add version chk */
1526 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! (ver!= 0)\n"));
1528 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ver_err);
1532 type = GetFrameType(ptr);
1533 subtype = GetFrameSubType(ptr); /* bit(7)~bit(2) */
1535 pattrib->to_fr_ds = get_tofr_ds(ptr);
1537 pattrib->frag_num = GetFragNum(ptr);
1538 pattrib->seq_num = GetSequence(ptr);
1540 pattrib->pw_save = GetPwrMgt(ptr);
1541 pattrib->mfrag = GetMFrag(ptr);
1542 pattrib->mdata = GetMData(ptr);
1543 pattrib->privacy = GetPrivacy(ptr);
1544 pattrib->order = GetOrder(ptr);
1545 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1546 if (bDumpRxPkt == 1) /* dump all rx packets */
1547 dump_rx_packet(ptr);
1548 else if ((bDumpRxPkt == 2) && (type == WIFI_MGT_TYPE))
1549 dump_rx_packet(ptr);
1550 else if ((bDumpRxPkt == 3) && (type == WIFI_DATA_TYPE))
1551 dump_rx_packet(ptr);
1554 case WIFI_MGT_TYPE: /* mgnt */
1555 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt);
1556 if (validate_80211w_mgmt(adapter, precv_frame) == _FAIL) {
1558 DBG_COUNTER(padapter->rx_logs.core_rx_pre_mgmt_err_80211w);
1562 retval = validate_recv_mgnt_frame(adapter, precv_frame);
1563 if (retval == _FAIL) {
1564 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_mgnt_frame fail\n"));
1565 DBG_COUNTER(adapter->rx_logs.core_rx_pre_mgmt_err);
1567 retval = _FAIL; /* only data frame return _SUCCESS */
1569 case WIFI_CTRL_TYPE: /* ctrl */
1570 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl);
1571 retval = validate_recv_ctrl_frame(adapter, precv_frame);
1572 if (retval == _FAIL) {
1573 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_ctrl_frame fail\n"));
1574 DBG_COUNTER(adapter->rx_logs.core_rx_pre_ctrl_err);
1576 retval = _FAIL; /* only data frame return _SUCCESS */
1578 case WIFI_DATA_TYPE: /* data */
1579 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data);
1581 pattrib->qos = (subtype & BIT(7)) ? 1:0;
1582 retval = validate_recv_data_frame(adapter, precv_frame);
1583 if (retval == _FAIL) {
1584 struct recv_priv *precvpriv = &adapter->recvpriv;
1585 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail\n")); */
1586 precvpriv->rx_drop++;
1587 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_err);
1588 } else if (retval == _SUCCESS) {
1589 #ifdef DBG_RX_DUMP_EAP
1594 rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt));
1595 /* get ether_type */
1596 memcpy(ð_type, ptr + pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_SIZE, 2);
1597 eth_type = ntohs((unsigned short) eth_type);
1598 if ((bDumpRxPkt == 4) && (eth_type == 0x888e))
1599 dump_rx_packet(ptr);
1602 DBG_COUNTER(adapter->rx_logs.core_rx_pre_data_handled);
1605 DBG_COUNTER(adapter->rx_logs.core_rx_pre_unknown);
1606 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("validate_recv_data_frame fail! type = 0x%x\n", type));
1607 #ifdef DBG_RX_DROP_FRAME
1608 DBG_871X("DBG_RX_DROP_FRAME validate_recv_data_frame fail! type = 0x%x\n", type);
1619 /* remove the wlanhdr and add the eth_hdr */
1620 sint wlanhdr_to_ethhdr(union recv_frame *precvframe);
1621 sint wlanhdr_to_ethhdr(union recv_frame *precvframe)
1627 struct ieee80211_snap_hdr *psnap;
1629 sint ret = _SUCCESS;
1630 struct adapter *adapter = precvframe->u.hdr.adapter;
1631 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1632 u8 *ptr = get_recvframe_data(precvframe) ; /* point to frame_ctrl field */
1633 struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
1635 if (pattrib->encrypt) {
1636 recvframe_pull_tail(precvframe, pattrib->icv_len);
1639 psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
1640 psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
1641 /* convert hdr + possible LLC headers into Ethernet header */
1642 /* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */
1643 if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
1644 (memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2)) &&
1645 (memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2))) ||
1646 /* eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || */
1647 !memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)) {
1648 /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
1651 /* Leave Ethernet header part of hdr and full payload */
1654 rmv_len = pattrib->hdrlen + pattrib->iv_len + (bsnaphdr?SNAP_SIZE:0);
1655 len = precvframe->u.hdr.len - rmv_len;
1657 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ===pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n", pattrib->hdrlen, pattrib->iv_len));
1659 memcpy(&be_tmp, ptr+rmv_len, 2);
1660 eth_type = ntohs(be_tmp); /* pattrib->ether_type */
1661 pattrib->eth_type = eth_type;
1663 #ifdef CONFIG_AUTO_AP_MODE
1664 if (0x8899 == pattrib->eth_type) {
1665 struct sta_info *psta = precvframe->u.hdr.psta;
1667 DBG_871X("wlan rx: got eth_type = 0x%x\n", pattrib->eth_type);
1669 if (psta && psta->isrc && psta->pid > 0) {
1672 rx_pid = *(u16 *)(ptr+rmv_len+2);
1674 DBG_871X("wlan rx(pid = 0x%x): sta("MAC_FMT") pid = 0x%x\n",
1675 rx_pid, MAC_ARG(psta->hwaddr), psta->pid);
1677 if (rx_pid == psta->pid) {
1679 u16 len = *(u16 *)(ptr+rmv_len+4);
1680 /* u16 ctrl_type = *(u16*)(ptr+rmv_len+6); */
1682 /* DBG_871X("RC: len = 0x%x, ctrl_type = 0x%x\n", len, ctrl_type); */
1683 DBG_871X("RC: len = 0x%x\n", len);
1685 for (i = 0; i < len ; i++)
1686 DBG_871X("0x%x\n", *(ptr+rmv_len+6+i));
1687 /* DBG_871X("0x%x\n", *(ptr+rmv_len+8+i)); */
1689 DBG_871X("RC-end\n");
1693 #endif /* CONFIG_AUTO_AP_MODE */
1695 if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) {
1701 /* append rx status for mp test packets */
1702 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24);
1703 memcpy(ptr, get_rxmem(precvframe), 24);
1706 ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr?2:0)));
1708 memcpy(ptr, pattrib->dst, ETH_ALEN);
1709 memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
1712 be_tmp = htons(len);
1713 memcpy(ptr+12, &be_tmp, 2);
1719 /* perform defrag */
1720 static union recv_frame *recvframe_defrag(struct adapter *adapter,
1721 struct __queue *defrag_q)
1723 struct list_head *plist, *phead;
1724 u8 *data, wlanhdr_offset;
1726 struct recv_frame_hdr *pfhdr, *pnfhdr;
1727 union recv_frame *prframe, *pnextrframe;
1728 struct __queue *pfree_recv_queue;
1731 pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
1733 phead = get_list_head(defrag_q);
1734 plist = get_next(phead);
1735 prframe = LIST_CONTAINOR(plist, union recv_frame, u);
1736 pfhdr = &prframe->u.hdr;
1737 list_del_init(&(prframe->u.list));
1739 if (curfragnum != pfhdr->attrib.frag_num) {
1740 /* the first fragment number must be 0 */
1741 /* free the whole queue */
1742 rtw_free_recvframe(prframe, pfree_recv_queue);
1743 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1750 plist = get_list_head(defrag_q);
1752 plist = get_next(plist);
1754 data = get_recvframe_data(prframe);
1756 while (phead != plist) {
1757 pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u);
1758 pnfhdr = &pnextrframe->u.hdr;
1761 /* check the fragment sequence (2nd ~n fragment frame) */
1763 if (curfragnum != pnfhdr->attrib.frag_num) {
1764 /* the fragment number must be increasing (after decache) */
1765 /* release the defrag_q & prframe */
1766 rtw_free_recvframe(prframe, pfree_recv_queue);
1767 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1773 /* copy the 2nd~n fragment frame's payload to the first fragment */
1774 /* get the 2nd~last fragment frame's payload */
1776 wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
1778 recvframe_pull(pnextrframe, wlanhdr_offset);
1780 /* append to first fragment frame's tail (if privacy frame, pull the ICV) */
1781 recvframe_pull_tail(prframe, pfhdr->attrib.icv_len);
1784 memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len);
1786 recvframe_put(prframe, pnfhdr->len);
1788 pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
1789 plist = get_next(plist);
1793 /* free the defrag_q queue and return the prframe */
1794 rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
1796 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Performance defrag!!!!!\n"));
1801 /* check if need to defrag, if needed queue the frame to defrag_q */
1802 union recv_frame *recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame)
1807 struct recv_frame_hdr *pfhdr;
1808 struct sta_info *psta;
1809 struct sta_priv *pstapriv;
1810 struct list_head *phead;
1811 union recv_frame *prtnframe = NULL;
1812 struct __queue *pfree_recv_queue, *pdefrag_q;
1814 pstapriv = &padapter->stapriv;
1816 pfhdr = &precv_frame->u.hdr;
1818 pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
1820 /* need to define struct of wlan header frame ctrl */
1821 ismfrag = pfhdr->attrib.mfrag;
1822 fragnum = pfhdr->attrib.frag_num;
1824 psta_addr = pfhdr->attrib.ta;
1825 psta = rtw_get_stainfo(pstapriv, psta_addr);
1827 u8 type = GetFrameType(pfhdr->rx_data);
1828 if (type != WIFI_DATA_TYPE) {
1829 psta = rtw_get_bcmc_stainfo(padapter);
1830 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1834 pdefrag_q = &psta->sta_recvpriv.defrag_q;
1836 if ((ismfrag == 0) && (fragnum == 0))
1837 prtnframe = precv_frame;/* isn't a fragment frame */
1840 /* 0~(n-1) fragment frame */
1841 /* enqueue to defraf_g */
1842 if (pdefrag_q != NULL) {
1844 /* the first fragment */
1845 if (!list_empty(&pdefrag_q->queue))
1846 /* free current defrag_q */
1847 rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue);
1850 /* Then enqueue the 0~(n-1) fragment into the defrag_q */
1852 /* spin_lock(&pdefrag_q->lock); */
1853 phead = get_list_head(pdefrag_q);
1854 list_add_tail(&pfhdr->list, phead);
1855 /* spin_unlock(&pdefrag_q->lock); */
1857 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Enqueuq: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1862 /* can't find this ta's defrag_queue, so free this recv_frame */
1863 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1865 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1870 if ((ismfrag == 0) && (fragnum != 0)) {
1871 /* the last fragment frame */
1872 /* enqueue the last fragment */
1873 if (pdefrag_q != NULL) {
1874 /* spin_lock(&pdefrag_q->lock); */
1875 phead = get_list_head(pdefrag_q);
1876 list_add_tail(&pfhdr->list, phead);
1877 /* spin_unlock(&pdefrag_q->lock); */
1879 /* call recvframe_defrag to defrag */
1880 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("defrag: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1881 precv_frame = recvframe_defrag(padapter, pdefrag_q);
1882 prtnframe = precv_frame;
1885 /* can't find this ta's defrag_queue, so free this recv_frame */
1886 rtw_free_recvframe(precv_frame, pfree_recv_queue);
1888 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", ismfrag, fragnum));
1894 if ((prtnframe != NULL) && (prtnframe->u.hdr.attrib.privacy)) {
1895 /* after defrag we must check tkip mic code */
1896 if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
1897 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic(padapter, prtnframe) == _FAIL\n"));
1898 rtw_free_recvframe(prtnframe, pfree_recv_queue);
1905 static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe)
1907 int a_len, padding_len;
1908 u16 nSubframe_Length;
1911 _pkt *sub_pkt, *subframes[MAX_SUBFRAME_COUNT];
1912 struct recv_priv *precvpriv = &padapter->recvpriv;
1913 struct __queue *pfree_recv_queue = &(precvpriv->free_recv_queue);
1918 recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen);
1920 if (prframe->u.hdr.attrib.iv_len > 0)
1921 recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len);
1923 a_len = prframe->u.hdr.len;
1925 pdata = prframe->u.hdr.rx_data;
1927 while (a_len > ETH_HLEN) {
1929 /* Offset 12 denote 2 mac address */
1930 nSubframe_Length = RTW_GET_BE16(pdata + 12);
1932 if (a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length)) {
1933 DBG_871X("nRemain_Length is %d and nSubframe_Length is : %d\n", a_len, nSubframe_Length);
1937 sub_pkt = rtw_os_alloc_msdu_pkt(prframe, nSubframe_Length, pdata);
1938 if (sub_pkt == NULL) {
1939 DBG_871X("%s(): allocate sub packet fail !!!\n", __func__);
1943 /* move the data point to data content */
1947 subframes[nr_subframes++] = sub_pkt;
1949 if (nr_subframes >= MAX_SUBFRAME_COUNT) {
1950 DBG_871X("ParseSubframe(): Too many Subframes! Packets dropped!\n");
1954 pdata += nSubframe_Length;
1955 a_len -= nSubframe_Length;
1957 padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1));
1958 if (padding_len == 4) {
1962 if (a_len < padding_len) {
1963 DBG_871X("ParseSubframe(): a_len < padding_len !\n");
1966 pdata += padding_len;
1967 a_len -= padding_len;
1971 for (i = 0; i < nr_subframes; i++) {
1972 sub_pkt = subframes[i];
1974 /* Indicat the packets to upper layer */
1976 rtw_os_recv_indicate_pkt(padapter, sub_pkt, &prframe->u.hdr.attrib);
1980 prframe->u.hdr.len = 0;
1981 rtw_free_recvframe(prframe, pfree_recv_queue);/* free this recv_frame */
1986 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num);
1987 int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
1989 struct adapter *padapter = preorder_ctrl->padapter;
1990 struct dvobj_priv *psdpriv = padapter->dvobj;
1991 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
1992 u8 wsize = preorder_ctrl->wsize_b;
1993 u16 wend = (preorder_ctrl->indicate_seq + wsize - 1) & 0xFFF;/* 4096; */
1995 /* Rx Reorder initialize condition. */
1996 if (preorder_ctrl->indicate_seq == 0xFFFF) {
1997 preorder_ctrl->indicate_seq = seq_num;
1999 DBG_871X("DBG_RX_SEQ %s:%d init IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2000 preorder_ctrl->indicate_seq, seq_num);
2003 /* DbgPrint("check_indicate_seq, 1st->indicate_seq =%d\n", precvpriv->indicate_seq); */
2006 /* DbgPrint("enter->check_indicate_seq(): IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */
2008 /* Drop out the packet which SeqNum is smaller than WinStart */
2009 if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) {
2010 /* RT_TRACE(COMP_RX_REORDER, DBG_LOUD, ("CheckRxTsIndicateSeq(): Packet Drop! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, NewSeqNum)); */
2011 /* DbgPrint("CheckRxTsIndicateSeq(): Packet Drop! IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */
2013 #ifdef DBG_RX_DROP_FRAME
2014 DBG_871X("%s IndicateSeq: %d > NewSeq: %d\n", __func__,
2015 preorder_ctrl->indicate_seq, seq_num);
2023 /* Sliding window manipulation. Conditions includes: */
2024 /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */
2025 /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */
2027 if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
2028 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2031 DBG_871X("DBG_RX_SEQ %s:%d SN_EQUAL IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2032 preorder_ctrl->indicate_seq, seq_num);
2034 } else if (SN_LESS(wend, seq_num)) {
2035 /* RT_TRACE(COMP_RX_REORDER, DBG_LOUD, ("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, NewSeqNum)); */
2036 /* DbgPrint("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */
2038 /* boundary situation, when seq_num cross 0xFFF */
2039 if (seq_num >= (wsize - 1))
2040 preorder_ctrl->indicate_seq = seq_num + 1 - wsize;
2042 preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1;
2043 pdbgpriv->dbg_rx_ampdu_window_shift_cnt++;
2045 DBG_871X("DBG_RX_SEQ %s:%d SN_LESS(wend, seq_num) IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2046 preorder_ctrl->indicate_seq, seq_num);
2050 /* DbgPrint("exit->check_indicate_seq(): IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */
2055 int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe);
2056 int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe)
2058 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2059 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2060 struct list_head *phead, *plist;
2061 union recv_frame *pnextrframe;
2062 struct rx_pkt_attrib *pnextattrib;
2064 /* DbgPrint("+enqueue_reorder_recvframe()\n"); */
2066 /* spin_lock_irqsave(&ppending_recvframe_queue->lock, irql); */
2067 /* spin_lock(&ppending_recvframe_queue->lock); */
2070 phead = get_list_head(ppending_recvframe_queue);
2071 plist = get_next(phead);
2073 while (phead != plist) {
2074 pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u);
2075 pnextattrib = &pnextrframe->u.hdr.attrib;
2077 if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
2078 plist = get_next(plist);
2079 else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
2080 /* Duplicate entry is found!! Do not insert current entry. */
2081 /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
2082 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql); */
2087 /* DbgPrint("enqueue_reorder_recvframe():while\n"); */
2092 /* spin_lock_irqsave(&ppending_recvframe_queue->lock, irql); */
2093 /* spin_lock(&ppending_recvframe_queue->lock); */
2095 list_del_init(&(prframe->u.hdr.list));
2097 list_add_tail(&(prframe->u.hdr.list), plist);
2099 /* spin_unlock(&ppending_recvframe_queue->lock); */
2100 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql); */
2103 /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */
2108 void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq);
2109 void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq)
2111 if (current_seq < prev_seq)
2112 pdbgpriv->dbg_rx_ampdu_loss_count += (4096 + current_seq - prev_seq);
2114 pdbgpriv->dbg_rx_ampdu_loss_count += (current_seq - prev_seq);
2117 int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced);
2118 int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced)
2120 struct list_head *phead, *plist;
2121 union recv_frame *prframe;
2122 struct rx_pkt_attrib *pattrib;
2124 int bPktInBuf = false;
2125 struct recv_priv *precvpriv = &padapter->recvpriv;
2126 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2127 struct dvobj_priv *psdpriv = padapter->dvobj;
2128 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2130 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_in_oder);
2132 /* DbgPrint("+recv_indicatepkts_in_order\n"); */
2134 /* spin_lock_irqsave(&ppending_recvframe_queue->lock, irql); */
2135 /* spin_lock(&ppending_recvframe_queue->lock); */
2137 phead = get_list_head(ppending_recvframe_queue);
2138 plist = get_next(phead);
2140 /* Handling some condition for forced indicate case. */
2141 if (bforced == true) {
2142 pdbgpriv->dbg_rx_ampdu_forced_indicate_count++;
2143 if (list_empty(phead)) {
2144 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql); */
2145 /* spin_unlock(&ppending_recvframe_queue->lock); */
2149 prframe = LIST_CONTAINOR(plist, union recv_frame, u);
2150 pattrib = &prframe->u.hdr.attrib;
2153 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2154 preorder_ctrl->indicate_seq, pattrib->seq_num);
2156 recv_indicatepkts_pkt_loss_cnt(pdbgpriv, preorder_ctrl->indicate_seq, pattrib->seq_num);
2157 preorder_ctrl->indicate_seq = pattrib->seq_num;
2161 /* Prepare indication list and indication. */
2162 /* Check if there is any packet need indicate. */
2163 while (!list_empty(phead)) {
2165 prframe = LIST_CONTAINOR(plist, union recv_frame, u);
2166 pattrib = &prframe->u.hdr.attrib;
2168 if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2169 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2170 ("recv_indicatepkts_in_order: indicate =%d seq =%d amsdu =%d\n",
2171 preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu));
2173 plist = get_next(plist);
2174 list_del_init(&(prframe->u.hdr.list));
2176 if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
2177 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
2179 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2180 preorder_ctrl->indicate_seq, pattrib->seq_num);
2184 /* Set this as a lock to make sure that only one thread is indicating packet. */
2185 /* pTS->RxIndicateState = RXTS_INDICATE_PROCESSING; */
2187 /* Indicate packets */
2188 /* RT_ASSERT((index<=REORDER_WIN_SIZE), ("RxReorderIndicatePacket(): Rx Reorder buffer full!!\n")); */
2191 /* indicate this recv_frame */
2192 /* DbgPrint("recv_indicatepkts_in_order, indicate_seq =%d, seq_num =%d\n", precvpriv->indicate_seq, pattrib->seq_num); */
2193 if (!pattrib->amsdu) {
2194 /* DBG_871X("recv_indicatepkts_in_order, amsdu!= 1, indicate_seq =%d, seq_num =%d\n", preorder_ctrl->indicate_seq, pattrib->seq_num); */
2196 if ((padapter->bDriverStopped == false) &&
2197 (padapter->bSurpriseRemoved == false))
2198 rtw_recv_indicatepkt(padapter, prframe);/* indicate this recv_frame */
2200 } else if (pattrib->amsdu == 1) {
2201 if (amsdu_to_msdu(padapter, prframe) != _SUCCESS)
2202 rtw_free_recvframe(prframe, &precvpriv->free_recv_queue);
2205 /* error condition; */
2209 /* Update local variables. */
2217 /* DbgPrint("recv_indicatepkts_in_order():while\n"); */
2221 /* spin_unlock(&ppending_recvframe_queue->lock); */
2222 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql); */
2227 int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe);
2228 int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe)
2230 int retval = _SUCCESS;
2231 struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
2232 struct recv_reorder_ctrl *preorder_ctrl = prframe->u.hdr.preorder_ctrl;
2233 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2234 struct dvobj_priv *psdpriv = padapter->dvobj;
2235 struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
2237 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_reoder);
2239 if (!pattrib->amsdu) {
2241 wlanhdr_to_ethhdr(prframe);
2243 if (pattrib->qos != 1) {
2244 if ((padapter->bDriverStopped == false) &&
2245 (padapter->bSurpriseRemoved == false)) {
2246 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"));
2248 rtw_recv_indicatepkt(padapter, prframe);
2253 #ifdef DBG_RX_DROP_FRAME
2254 DBG_871X("DBG_RX_DROP_FRAME %s pattrib->qos != 1\n", __func__);
2261 if (preorder_ctrl->enable == false) {
2262 /* indicate this recv_frame */
2263 preorder_ctrl->indicate_seq = pattrib->seq_num;
2265 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2266 preorder_ctrl->indicate_seq, pattrib->seq_num);
2269 rtw_recv_indicatepkt(padapter, prframe);
2271 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2273 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2274 preorder_ctrl->indicate_seq, pattrib->seq_num);
2279 } else if (pattrib->amsdu == 1) { /* temp filter -> means didn't support A-MSDUs in a A-MPDU */
2280 if (preorder_ctrl->enable == false) {
2281 preorder_ctrl->indicate_seq = pattrib->seq_num;
2283 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2284 preorder_ctrl->indicate_seq, pattrib->seq_num);
2287 retval = amsdu_to_msdu(padapter, prframe);
2289 preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
2291 DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__,
2292 preorder_ctrl->indicate_seq, pattrib->seq_num);
2295 if (retval != _SUCCESS) {
2296 #ifdef DBG_RX_DROP_FRAME
2297 DBG_871X("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __func__);
2305 spin_lock_bh(&ppending_recvframe_queue->lock);
2307 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
2308 ("recv_indicatepkt_reorder: indicate =%d seq =%d\n",
2309 preorder_ctrl->indicate_seq, pattrib->seq_num));
2311 /* s2. check if winstart_b(indicate_seq) needs to been updated */
2312 if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) {
2313 pdbgpriv->dbg_rx_ampdu_drop_count++;
2314 #ifdef DBG_RX_DROP_FRAME
2315 DBG_871X("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __func__);
2321 /* s3. Insert all packet into Reorder Queue to maintain its ordering. */
2322 if (!enqueue_reorder_recvframe(preorder_ctrl, prframe)) {
2323 /* DbgPrint("recv_indicatepkt_reorder, enqueue_reorder_recvframe fail!\n"); */
2324 /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock, irql); */
2326 #ifdef DBG_RX_DROP_FRAME
2327 DBG_871X("DBG_RX_DROP_FRAME %s enqueue_reorder_recvframe fail\n", __func__);
2334 /* Indication process. */
2335 /* After Packet dropping and Sliding Window shifting as above, we can now just indicate the packets */
2336 /* with the SeqNum smaller than latest WinStart and buffer other packets. */
2338 /* For Rx Reorder condition: */
2339 /* 1. All packets with SeqNum smaller than WinStart => Indicate */
2340 /* 2. All packets with SeqNum larger than or equal to WinStart => Buffer it. */
2343 /* recv_indicatepkts_in_order(padapter, preorder_ctrl, true); */
2344 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) {
2345 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2346 spin_unlock_bh(&ppending_recvframe_queue->lock);
2348 spin_unlock_bh(&ppending_recvframe_queue->lock);
2349 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
2355 spin_unlock_bh(&ppending_recvframe_queue->lock);
2361 void rtw_reordering_ctrl_timeout_handler(void *pcontext)
2363 struct recv_reorder_ctrl *preorder_ctrl = pcontext;
2364 struct adapter *padapter = preorder_ctrl->padapter;
2365 struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
2368 if (padapter->bDriverStopped || padapter->bSurpriseRemoved)
2371 /* DBG_871X("+rtw_reordering_ctrl_timeout_handler() =>\n"); */
2373 spin_lock_bh(&ppending_recvframe_queue->lock);
2375 if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true)
2376 _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
2378 spin_unlock_bh(&ppending_recvframe_queue->lock);
2382 int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe);
2383 int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe)
2385 int retval = _SUCCESS;
2386 /* struct recv_priv *precvpriv = &padapter->recvpriv; */
2387 /* struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; */
2388 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
2389 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
2391 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate);
2393 if (phtpriv->ht_option == true) { /* B/G/N Mode */
2394 /* prframe->u.hdr.preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; */
2396 if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) { /* including perform A-MPDU Rx Ordering Buffer Control */
2397 #ifdef DBG_RX_DROP_FRAME
2398 DBG_871X("DBG_RX_DROP_FRAME %s recv_indicatepkt_reorder error!\n", __func__);
2401 if ((padapter->bDriverStopped == false) &&
2402 (padapter->bSurpriseRemoved == false)) {
2407 } else { /* B/G mode */
2408 retval = wlanhdr_to_ethhdr(prframe);
2409 if (retval != _SUCCESS) {
2410 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("wlanhdr_to_ethhdr: drop pkt\n"));
2411 #ifdef DBG_RX_DROP_FRAME
2412 DBG_871X("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr error!\n", __func__);
2417 if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) {
2418 /* indicate this recv_frame */
2419 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"));
2420 rtw_recv_indicatepkt(padapter, prframe);
2424 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"));
2426 RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
2437 static int recv_func_prehandle(struct adapter *padapter, union recv_frame *rframe)
2440 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2442 DBG_COUNTER(padapter->rx_logs.core_rx_pre);
2444 /* check the frame crtl field and decache */
2445 ret = validate_recv_frame(padapter, rframe);
2446 if (ret != _SUCCESS) {
2447 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
2448 rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */
2456 static int recv_func_posthandle(struct adapter *padapter, union recv_frame *prframe)
2459 union recv_frame *orig_prframe = prframe;
2460 struct recv_priv *precvpriv = &padapter->recvpriv;
2461 struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
2463 DBG_COUNTER(padapter->rx_logs.core_rx_post);
2465 prframe = decryptor(padapter, prframe);
2466 if (prframe == NULL) {
2467 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decryptor: drop pkt\n"));
2468 #ifdef DBG_RX_DROP_FRAME
2469 DBG_871X("DBG_RX_DROP_FRAME %s decryptor: drop pkt\n", __func__);
2472 DBG_COUNTER(padapter->rx_logs.core_rx_post_decrypt_err);
2473 goto _recv_data_drop;
2476 prframe = recvframe_chk_defrag(padapter, prframe);
2477 if (prframe == NULL) {
2478 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chk_defrag: drop pkt\n"));
2479 #ifdef DBG_RX_DROP_FRAME
2480 DBG_871X("DBG_RX_DROP_FRAME %s recvframe_chk_defrag: drop pkt\n", __func__);
2482 DBG_COUNTER(padapter->rx_logs.core_rx_post_defrag_err);
2483 goto _recv_data_drop;
2486 prframe = portctrl(padapter, prframe);
2487 if (prframe == NULL) {
2488 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("portctrl: drop pkt\n"));
2489 #ifdef DBG_RX_DROP_FRAME
2490 DBG_871X("DBG_RX_DROP_FRAME %s portctrl: drop pkt\n", __func__);
2493 DBG_COUNTER(padapter->rx_logs.core_rx_post_portctrl_err);
2494 goto _recv_data_drop;
2497 count_rx_stats(padapter, prframe, NULL);
2499 ret = process_recv_indicatepkts(padapter, prframe);
2500 if (ret != _SUCCESS) {
2501 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recv_func: process_recv_indicatepkts fail!\n"));
2502 #ifdef DBG_RX_DROP_FRAME
2503 DBG_871X("DBG_RX_DROP_FRAME %s process_recv_indicatepkts fail!\n", __func__);
2505 rtw_free_recvframe(orig_prframe, pfree_recv_queue);/* free this recv_frame */
2506 DBG_COUNTER(padapter->rx_logs.core_rx_post_indicate_err);
2507 goto _recv_data_drop;
2511 precvpriv->rx_drop++;
2516 int recv_func(struct adapter *padapter, union recv_frame *rframe);
2517 int recv_func(struct adapter *padapter, union recv_frame *rframe)
2520 struct rx_pkt_attrib *prxattrib = &rframe->u.hdr.attrib;
2521 struct recv_priv *recvpriv = &padapter->recvpriv;
2522 struct security_priv *psecuritypriv = &padapter->securitypriv;
2523 struct mlme_priv *mlmepriv = &padapter->mlmepriv;
2525 /* check if need to handle uc_swdec_pending_queue*/
2526 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) {
2527 union recv_frame *pending_frame;
2530 while ((pending_frame = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) {
2532 DBG_COUNTER(padapter->rx_logs.core_rx_dequeue);
2533 recv_func_posthandle(padapter, pending_frame);
2537 DBG_871X(FUNC_ADPT_FMT" dequeue %d from uc_swdec_pending_queue\n",
2538 FUNC_ADPT_ARG(padapter), cnt);
2541 DBG_COUNTER(padapter->rx_logs.core_rx);
2542 ret = recv_func_prehandle(padapter, rframe);
2544 if (ret == _SUCCESS) {
2546 /* check if need to enqueue into uc_swdec_pending_queue*/
2547 if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
2548 !IS_MCAST(prxattrib->ra) && prxattrib->encrypt > 0 &&
2549 (prxattrib->bdecrypted == 0 || psecuritypriv->sw_decrypt == true) &&
2550 psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPAPSK &&
2551 !psecuritypriv->busetkipkey) {
2552 DBG_COUNTER(padapter->rx_logs.core_rx_enqueue);
2553 rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue);
2554 /* DBG_871X("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); */
2556 if (recvpriv->free_recvframe_cnt < NR_RECVFRAME/4) {
2557 /* to prevent from recvframe starvation, get recvframe from uc_swdec_pending_queue to free_recvframe_cnt */
2558 rframe = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue);
2566 ret = recv_func_posthandle(padapter, rframe);
2574 s32 rtw_recv_entry(union recv_frame *precvframe)
2576 struct adapter *padapter;
2577 struct recv_priv *precvpriv;
2580 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+rtw_recv_entry\n")); */
2582 padapter = precvframe->u.hdr.adapter;
2584 precvpriv = &padapter->recvpriv;
2586 ret = recv_func(padapter, precvframe);
2588 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtw_recv_entry: recv_func return fail!!!\n"));
2589 goto _recv_entry_drop;
2593 precvpriv->rx_pkts++;
2599 /* RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("_recv_entry_drop\n")); */
2604 void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
2606 struct adapter *adapter = (struct adapter *)FunctionContext;
2607 struct recv_priv *recvpriv = &adapter->recvpriv;
2610 u8 avg_signal_strength = 0;
2611 u8 avg_signal_qual = 0;
2612 u32 num_signal_strength = 0;
2613 u32 num_signal_qual = 0;
2614 u8 _alpha = 5; /* this value is based on converging_constant = 5000 and sampling_interval = 1000 */
2616 if (adapter->recvpriv.is_signal_dbg) {
2617 /* update the user specific value, signal_strength_dbg, to signal_strength, rssi */
2618 adapter->recvpriv.signal_strength = adapter->recvpriv.signal_strength_dbg;
2619 adapter->recvpriv.rssi = (s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg);
2622 if (recvpriv->signal_strength_data.update_req == 0) {/* update_req is clear, means we got rx */
2623 avg_signal_strength = recvpriv->signal_strength_data.avg_val;
2624 num_signal_strength = recvpriv->signal_strength_data.total_num;
2625 /* after avg_vals are accquired, we can re-stat the signal values */
2626 recvpriv->signal_strength_data.update_req = 1;
2629 if (recvpriv->signal_qual_data.update_req == 0) {/* update_req is clear, means we got rx */
2630 avg_signal_qual = recvpriv->signal_qual_data.avg_val;
2631 num_signal_qual = recvpriv->signal_qual_data.total_num;
2632 /* after avg_vals are accquired, we can re-stat the signal values */
2633 recvpriv->signal_qual_data.update_req = 1;
2636 if (num_signal_strength == 0) {
2637 if (rtw_get_on_cur_ch_time(adapter) == 0
2638 || jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) < 2 * adapter->mlmeextpriv.mlmext_info.bcn_interval
2644 if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == true
2645 || check_fwstate(&adapter->mlmepriv, _FW_LINKED) == false
2650 /* update value of signal_strength, rssi, signal_qual */
2651 tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength);
2653 tmp_s = tmp_s/_alpha + 1;
2655 tmp_s = tmp_s/_alpha;
2659 tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual);
2661 tmp_q = tmp_q/_alpha + 1;
2663 tmp_q = tmp_q/_alpha;
2667 recvpriv->signal_strength = tmp_s;
2668 recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s);
2669 recvpriv->signal_qual = tmp_q;
2671 #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
2672 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u"
2673 ", num_signal_strength:%u, num_signal_qual:%u"
2676 , FUNC_ADPT_ARG(adapter)
2677 , recvpriv->signal_strength
2679 , recvpriv->signal_qual
2680 , num_signal_strength, num_signal_qual
2681 , rtw_get_on_cur_ch_time(adapter) ? jiffies_to_msecs(jiffies - rtw_get_on_cur_ch_time(adapter)) : 0
2687 rtw_set_signal_stat_timer(recvpriv);