/****************************************************************************** * * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #define _RTW_RECV_C_ #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_BT_COEXIST #include #endif #include #include void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS); void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv) { ; memset((u8 *)psta_recvpriv, 0, sizeof (struct sta_recv_priv)); spin_lock_init(&psta_recvpriv->lock); /* for(i=0; iblk_strms[i]); */ _rtw_init_queue(&psta_recvpriv->defrag_q); ; } sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter) { sint i; union recv_frame *precvframe; sint res=_SUCCESS; ; /* We don't need to memset padapter->XXX to zero, because adapter is allocated by rtw_zvmalloc(). */ /* memset((unsigned char *)precvpriv, 0, sizeof (struct recv_priv)); */ spin_lock_init(&precvpriv->lock); _rtw_init_queue(&precvpriv->free_recv_queue); _rtw_init_queue(&precvpriv->recv_pending_queue); _rtw_init_queue(&precvpriv->uc_swdec_pending_queue); precvpriv->adapter = padapter; precvpriv->free_recvframe_cnt = NR_RECVFRAME; rtw_os_recv_resource_init(precvpriv, padapter); precvpriv->pallocated_frame_buf = rtw_zvmalloc(NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); if(precvpriv->pallocated_frame_buf==NULL){ res= _FAIL; goto exit; } /* memset(precvpriv->pallocated_frame_buf, 0, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); */ precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ); /* precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf + RXFRAME_ALIGN_SZ - */ /* ((SIZE_PTR) (precvpriv->pallocated_frame_buf) &(RXFRAME_ALIGN_SZ-1)); */ precvframe = (union recv_frame*) precvpriv->precv_frame_buf; for(i=0; i < NR_RECVFRAME ; i++) { _rtw_init_listhead(&(precvframe->u.list)); rtw_list_insert_tail(&(precvframe->u.list), &(precvpriv->free_recv_queue.queue)); res = rtw_os_recv_resource_alloc(padapter, precvframe); precvframe->u.hdr.len = 0; precvframe->u.hdr.adapter =padapter; precvframe++; } precvpriv->rx_pending_cnt=1; _rtw_init_sema(&precvpriv->allrxreturnevt, 0); res = rtw_hal_init_recv_priv(padapter); _init_timer(&precvpriv->signal_stat_timer, padapter->pnetdev, RTW_TIMER_HDL_NAME(signal_stat), padapter); precvpriv->signal_stat_sampling_interval = 1000; /* ms */ rtw_set_signal_stat_timer(precvpriv); exit: return res; } void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv) { } void _rtw_free_recv_priv (struct recv_priv *precvpriv) { struct adapter *padapter = precvpriv->adapter; rtw_free_uc_swdec_pending_queue(padapter); rtw_mfree_recv_priv_lock(precvpriv); rtw_os_recv_resource_free(precvpriv); if(precvpriv->pallocated_frame_buf) { rtw_vmfree(precvpriv->pallocated_frame_buf, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); } rtw_hal_free_recv_priv(padapter); ; } union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue) { union recv_frame *precvframe; _list *plist, *phead; struct adapter *padapter; struct recv_priv *precvpriv; ; if(_rtw_queue_empty(pfree_recv_queue) == true) { precvframe = NULL; } else { phead = get_list_head(pfree_recv_queue); plist = get_next(phead); precvframe = LIST_CONTAINOR(plist, union recv_frame, u); rtw_list_delete(&precvframe->u.hdr.list); padapter=precvframe->u.hdr.adapter; if(padapter !=NULL){ precvpriv=&padapter->recvpriv; if(pfree_recv_queue == &precvpriv->free_recv_queue) precvpriv->free_recvframe_cnt--; } } ; return precvframe; } union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue) { _irqL irqL; union recv_frame *precvframe; spin_lock_bh(&pfree_recv_queue->lock); precvframe = _rtw_alloc_recvframe(pfree_recv_queue); spin_unlock_bh(&pfree_recv_queue->lock); return precvframe; } void rtw_init_recvframe(union recv_frame *precvframe, struct recv_priv *precvpriv) { /* Perry: This can be removed */ _rtw_init_listhead(&precvframe->u.hdr.list); precvframe->u.hdr.len=0; } int rtw_free_recvframe(union recv_frame *precvframe, _queue *pfree_recv_queue) { _irqL irqL; struct adapter *padapter=precvframe->u.hdr.adapter; struct recv_priv *precvpriv = &padapter->recvpriv; if(precvframe->u.hdr.pkt) { #ifdef CONFIG_BSD_RX_USE_MBUF m_freem(precvframe->u.hdr.pkt); #else /* CONFIG_BSD_RX_USE_MBUF */ rtw_skb_free(precvframe->u.hdr.pkt);/* free skb by driver */ #endif /* CONFIG_BSD_RX_USE_MBUF */ precvframe->u.hdr.pkt = NULL; } spin_lock_bh(&pfree_recv_queue->lock); rtw_list_delete(&(precvframe->u.hdr.list)); precvframe->u.hdr.len = 0; rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(pfree_recv_queue)); if(padapter !=NULL){ if(pfree_recv_queue == &precvpriv->free_recv_queue) precvpriv->free_recvframe_cnt++; } spin_unlock_bh(&pfree_recv_queue->lock); return _SUCCESS; } sint _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue) { struct adapter *padapter=precvframe->u.hdr.adapter; struct recv_priv *precvpriv = &padapter->recvpriv; ; /* _rtw_init_listhead(&(precvframe->u.hdr.list)); */ rtw_list_delete(&(precvframe->u.hdr.list)); rtw_list_insert_tail(&(precvframe->u.hdr.list), get_list_head(queue)); if (padapter != NULL) { if (queue == &precvpriv->free_recv_queue) precvpriv->free_recvframe_cnt++; } ; return _SUCCESS; } sint rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue) { sint ret; _irqL irqL; /* _spinlock(&pfree_recv_queue->lock); */ spin_lock_bh(&queue->lock); ret = _rtw_enqueue_recvframe(precvframe, queue); /* _rtw_spinunlock(&pfree_recv_queue->lock); */ spin_unlock_bh(&queue->lock); return ret; } /* sint rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue) { return rtw_free_recvframe(precvframe, queue); } */ /* caller : defrag ; recvframe_chk_defrag in recv_thread (passive) pframequeue: defrag_queue : will be accessed in recv_thread (passive) using spinlock to protect */ void rtw_free_recvframe_queue(_queue *pframequeue, _queue *pfree_recv_queue) { union recv_frame *precvframe; _list *plist, *phead; ; _rtw_spinlock(&pframequeue->lock); phead = get_list_head(pframequeue); plist = get_next(phead); while(rtw_end_of_queue_search(phead, plist) == false) { precvframe = LIST_CONTAINOR(plist, union recv_frame, u); plist = get_next(plist); rtw_free_recvframe(precvframe, pfree_recv_queue); } _rtw_spinunlock(&pframequeue->lock); ; } u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter) { u32 cnt = 0; union recv_frame *pending_frame; while((pending_frame=rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) { rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue); cnt++; } if (cnt) DBG_871X(FUNC_ADPT_FMT" dequeue %d\n", FUNC_ADPT_ARG(adapter), cnt); return cnt; } sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, _queue *queue) { _irqL irqL; spin_lock_bh(&queue->lock); rtw_list_delete(&precvbuf->list); rtw_list_insert_head(&precvbuf->list, get_list_head(queue)); spin_unlock_bh(&queue->lock); return _SUCCESS; } sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue) { _irqL irqL; _enter_critical_ex(&queue->lock, &irqL); rtw_list_delete(&precvbuf->list); rtw_list_insert_tail(&precvbuf->list, get_list_head(queue)); _exit_critical_ex(&queue->lock, &irqL); return _SUCCESS; } struct recv_buf *rtw_dequeue_recvbuf (_queue *queue) { _irqL irqL; struct recv_buf *precvbuf; _list *plist, *phead; _enter_critical_ex(&queue->lock, &irqL); if(_rtw_queue_empty(queue) == true) { precvbuf = NULL; } else { phead = get_list_head(queue); plist = get_next(phead); precvbuf = LIST_CONTAINOR(plist, struct recv_buf, list); rtw_list_delete(&precvbuf->list); } _exit_critical_ex(&queue->lock, &irqL); return precvbuf; } sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe); sint recvframe_chkmic(struct adapter *adapter, union recv_frame *precvframe){ sint i,res=_SUCCESS; u32 datalen; u8 miccode[8]; u8 bmic_err=false,brpt_micerror = true; u8 *pframe, *payload,*pframemic; u8 *mickey; /* u8 *iv,rxdata_key_idx=0; */ struct sta_info *stainfo; struct rx_pkt_attrib *prxattrib=&precvframe->u.hdr.attrib; struct security_priv *psecuritypriv=&adapter->securitypriv; struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); ; stainfo=rtw_get_stainfo(&adapter->stapriv ,&prxattrib->ta[0]); if(prxattrib->encrypt ==_TKIP_) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n recvframe_chkmic:prxattrib->encrypt ==_TKIP_\n")); 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", prxattrib->ra[0],prxattrib->ra[1],prxattrib->ra[2],prxattrib->ra[3],prxattrib->ra[4],prxattrib->ra[5])); /* calculate mic code */ if(stainfo!= NULL) { if(IS_MCAST(prxattrib->ra)) { /* mickey=&psecuritypriv->dot118021XGrprxmickey.skey[0]; */ /* iv = precvframe->u.hdr.rx_data+prxattrib->hdrlen; */ /* rxdata_key_idx =( ((iv[3])>>6)&0x3) ; */ mickey=&psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0]; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n recvframe_chkmic: bcmc key \n")); /* DBG_871X("\n recvframe_chkmic: bcmc key psecuritypriv->dot118021XGrpKeyid(%d),pmlmeinfo->key_index(%d) ,recv key_id(%d)\n", */ /* psecuritypriv->dot118021XGrpKeyid,pmlmeinfo->key_index,rxdata_key_idx); */ if(psecuritypriv->binstallGrpkey==false) { res=_FAIL; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n")); DBG_871X("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"); goto exit; } } else{ mickey=&stainfo->dot11tkiprxmickey.skey[0]; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n recvframe_chkmic: unicast key \n")); } datalen=precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;/* icv_len included the mic code */ pframe=precvframe->u.hdr.rx_data; payload=pframe+prxattrib->hdrlen+prxattrib->iv_len; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n",prxattrib->iv_len,prxattrib->icv_len)); rtw_seccalctkipmic(mickey,pframe,payload, datalen ,&miccode[0],(unsigned char)prxattrib->priority); /* care the length of the data */ pframemic=payload+datalen; bmic_err=false; for(i=0;i<8;i++){ if(miccode[i] != *(pframemic+i)){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x) ",i,miccode[i],i,*(pframemic+i))); bmic_err=true; } } if(bmic_err==true){ 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", *(pframemic-8),*(pframemic-7),*(pframemic-6),*(pframemic-5),*(pframemic-4),*(pframemic-3),*(pframemic-2),*(pframemic-1))); 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", *(pframemic-16),*(pframemic-15),*(pframemic-14),*(pframemic-13),*(pframemic-12),*(pframemic-11),*(pframemic-10),*(pframemic-9))); { uint i; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n ======demp packet (len=%d)======\n",precvframe->u.hdr.len)); for(i=0;iu.hdr.len;i=i+8){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x", *(precvframe->u.hdr.rx_data+i),*(precvframe->u.hdr.rx_data+i+1), *(precvframe->u.hdr.rx_data+i+2),*(precvframe->u.hdr.rx_data+i+3), *(precvframe->u.hdr.rx_data+i+4),*(precvframe->u.hdr.rx_data+i+5), *(precvframe->u.hdr.rx_data+i+6),*(precvframe->u.hdr.rx_data+i+7))); } RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n ======demp packet end [len=%d]======\n",precvframe->u.hdr.len)); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n hrdlen=%d, \n",prxattrib->hdrlen)); } RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("ra=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey=%d ", prxattrib->ra[0],prxattrib->ra[1],prxattrib->ra[2], prxattrib->ra[3],prxattrib->ra[4],prxattrib->ra[5],psecuritypriv->binstallGrpkey)); /* double check key_index for some timing issue , */ /* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */ if((IS_MCAST(prxattrib->ra)==true) && (prxattrib->key_index != pmlmeinfo->key_index )) brpt_micerror = false; if((prxattrib->bdecrypted ==true)&& (brpt_micerror == true)) { rtw_handle_tkip_mic_err(adapter,(u8)IS_MCAST(prxattrib->ra)); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" mic error :prxattrib->bdecrypted=%d ",prxattrib->bdecrypted)); DBG_871X(" mic error :prxattrib->bdecrypted=%d\n",prxattrib->bdecrypted); } else { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" mic error :prxattrib->bdecrypted=%d ",prxattrib->bdecrypted)); DBG_871X(" mic error :prxattrib->bdecrypted=%d\n",prxattrib->bdecrypted); } res=_FAIL; } else{ /* mic checked ok */ if((psecuritypriv->bcheck_grpkey ==false)&&(IS_MCAST(prxattrib->ra)==true)){ psecuritypriv->bcheck_grpkey =true; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("psecuritypriv->bcheck_grpkey =true")); } } } else { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvframe_chkmic: rtw_get_stainfo==NULL!!!\n")); } recvframe_pull_tail(precvframe, 8); } exit: ; return res; } /* decrypt and set the ivlen,icvlen of the recv_frame */ static union recv_frame *decryptor(struct adapter *padapter,union recv_frame *precv_frame) { struct rx_pkt_attrib *prxattrib = &precv_frame->u.hdr.attrib; struct security_priv *psecuritypriv=&padapter->securitypriv; union recv_frame *return_packet=precv_frame; u32 res=_SUCCESS; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("prxstat->decrypted=%x prxattrib->encrypt = 0x%03x\n",prxattrib->bdecrypted,prxattrib->encrypt)); if(prxattrib->encrypt>0) { u8 *iv = precv_frame->u.hdr.rx_data+prxattrib->hdrlen; prxattrib->key_index = ( ((iv[3])>>6)&0x3) ; if(prxattrib->key_index > WEP_KEYS) { DBG_871X("prxattrib->key_index(%d) > WEP_KEYS \n", prxattrib->key_index); switch(prxattrib->encrypt){ case _WEP40_: case _WEP104_: prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex; break; case _TKIP_: case _AES_: default: prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid; break; } } } if((prxattrib->encrypt>0) && ((prxattrib->bdecrypted==0) ||(psecuritypriv->sw_decrypt==true))) { psecuritypriv->hw_decrypted=false; #ifdef DBG_RX_DECRYPTOR DBG_871X("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif switch(prxattrib->encrypt){ case _WEP40_: case _WEP104_: rtw_wep_decrypt(padapter, (u8 *)precv_frame); break; case _TKIP_: res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame); break; case _AES_: res = rtw_aes_decrypt(padapter, (u8 * )precv_frame); break; default: break; } } else if(prxattrib->bdecrypted==1 && prxattrib->encrypt >0 && (psecuritypriv->busetkipkey==1 || prxattrib->encrypt !=_TKIP_ ) ) { psecuritypriv->hw_decrypted=true; #ifdef DBG_RX_DECRYPTOR DBG_871X("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif } else { #ifdef DBG_RX_DECRYPTOR DBG_871X("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, psecuritypriv->hw_decrypted:%d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif } if(res == _FAIL) { rtw_free_recvframe(return_packet,&padapter->recvpriv.free_recv_queue); return_packet = NULL; } else{ prxattrib->bdecrypted = true; } return return_packet; } /* set the security information in the recv_frame */ static union recv_frame * portctrl(struct adapter *adapter,union recv_frame * precv_frame) { u8 *psta_addr, *ptr; uint auth_alg; struct recv_frame_hdr *pfhdr; struct sta_info *psta; struct sta_priv *pstapriv ; union recv_frame *prtnframe; u16 ether_type=0; u16 eapol_type = 0x888e;/* for Funia BD's WPA issue */ struct rx_pkt_attrib *pattrib; __be16 be_tmp; ; pstapriv = &adapter->stapriv; auth_alg = adapter->securitypriv.dot11AuthAlgrthm; ptr = get_recvframe_data(precv_frame); pfhdr = &precv_frame->u.hdr; pattrib = &pfhdr->attrib; psta_addr = pattrib->ta; prtnframe = NULL; psta = rtw_get_stainfo(pstapriv, psta_addr); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:adapter->securitypriv.dot11AuthAlgrthm=%d\n",adapter->securitypriv.dot11AuthAlgrthm)); if(auth_alg==2) { if ((psta!=NULL) && (psta->ieee8021x_blocked)) { /* blocked */ /* only accept EAPOL frame */ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:psta->ieee8021x_blocked==1\n")); prtnframe=precv_frame; /* get ether_type */ ptr=ptr+pfhdr->attrib.hdrlen+pfhdr->attrib.iv_len+LLC_HEADER_SIZE; memcpy(&be_tmp, ptr, 2); ether_type= ntohs(be_tmp); if (ether_type == eapol_type) { prtnframe=precv_frame; } else { /* free this frame */ rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue); prtnframe=NULL; } } else { /* allowed */ /* check decryption status, and decrypt the frame if needed */ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:psta->ieee8021x_blocked==0\n")); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("portctrl:precv_frame->hdr.attrib.privacy=%x\n",precv_frame->u.hdr.attrib.privacy)); if (pattrib->bdecrypted == 0) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("portctrl:prxstat->decrypted=%x\n", pattrib->bdecrypted)); } prtnframe=precv_frame; /* check is the EAPOL frame or not (Rekey) */ if(ether_type == eapol_type){ RT_TRACE(_module_rtl871x_recv_c_,_drv_notice_,("########portctrl:ether_type == 0x888e\n")); /* check Rekey */ prtnframe=precv_frame; } else{ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:ether_type=0x%04x\n", ether_type)); } } } else { prtnframe=precv_frame; } ; return prtnframe; } sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache); sint recv_decache(union recv_frame *precv_frame, u8 bretry, struct stainfo_rxcache *prxcache) { sint tid = precv_frame->u.hdr.attrib.priority; u16 seq_ctrl = ( (precv_frame->u.hdr.attrib.seq_num&0xffff) << 4) | (precv_frame->u.hdr.attrib.frag_num & 0xf); ; if(tid>15) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_decache, (tid>15)! seq_ctrl=0x%x, tid=0x%x\n", seq_ctrl, tid)); return _FAIL; } if(1)/* if(bretry) */ { if(seq_ctrl == prxcache->tid_rxseq[tid]) { 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])); return _FAIL; } } prxcache->tid_rxseq[tid] = seq_ctrl; ; return _SUCCESS; } void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame); void process_pwrbit_data(struct adapter *padapter, union recv_frame *precv_frame) { #ifdef CONFIG_AP_MODE unsigned char pwrbit; u8 *ptr = precv_frame->u.hdr.rx_data; struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &padapter->stapriv; struct sta_info *psta=NULL; psta = rtw_get_stainfo(pstapriv, pattrib->src); pwrbit = GetPwrMgt(ptr); if(psta) { if(pwrbit) { if(!(psta->state & WIFI_SLEEP_STATE)) { /* psta->state |= WIFI_SLEEP_STATE; */ /* pstapriv->sta_dz_bitmap |= BIT(psta->aid); */ stop_sta_xmit(padapter, psta); /* DBG_871X("to sleep, sta_dz_bitmap=%x\n", pstapriv->sta_dz_bitmap); */ } } else { if(psta->state & WIFI_SLEEP_STATE) { /* psta->state ^= WIFI_SLEEP_STATE; */ /* pstapriv->sta_dz_bitmap &= ~BIT(psta->aid); */ wakeup_sta_to_xmit(padapter, psta); /* DBG_871X("to wakeup, sta_dz_bitmap=%x\n", pstapriv->sta_dz_bitmap); */ } } } #endif } void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame); void process_wmmps_data(struct adapter *padapter, union recv_frame *precv_frame) { #ifdef CONFIG_AP_MODE struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &padapter->stapriv; struct sta_info *psta=NULL; psta = rtw_get_stainfo(pstapriv, pattrib->src); if(!psta) return; if(!psta->qos_option) return; if(!(psta->qos_info&0xf)) return; if(psta->state&WIFI_SLEEP_STATE) { u8 wmmps_ac=0; switch(pattrib->priority) { case 1: case 2: wmmps_ac = psta->uapsd_bk&BIT(1); break; case 4: case 5: wmmps_ac = psta->uapsd_vi&BIT(1); break; case 6: case 7: wmmps_ac = psta->uapsd_vo&BIT(1); break; case 0: case 3: default: wmmps_ac = psta->uapsd_be&BIT(1); break; } if(wmmps_ac) { if(psta->sleepq_ac_len>0) { /* process received triggered frame */ xmit_delivery_enabled_frames(padapter, psta); } else { /* issue one qos null frame with More data bit = 0 and the EOSP bit set (=1) */ issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0); } } } #endif } void count_rx_stats(struct adapter *padapter, union recv_frame *prframe, struct sta_info*sta) { int sz; struct sta_info *psta = NULL; struct stainfo_stats *pstats = NULL; struct rx_pkt_attrib *pattrib = & prframe->u.hdr.attrib; struct recv_priv *precvpriv = &padapter->recvpriv; sz = get_recvframe_len(prframe); precvpriv->rx_bytes += sz; padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++; if( (!MacAddr_isBcst(pattrib->dst)) && (!IS_MCAST(pattrib->dst))){ padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++; } if(sta) psta = sta; else psta = prframe->u.hdr.psta; if(psta) { pstats = &psta->sta_stats; pstats->rx_data_pkts++; pstats->rx_bytes += sz; } } sint sta2sta_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint sta2sta_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ) { u8 *ptr = precv_frame->u.hdr.rx_data; sint ret = _SUCCESS; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &adapter->stapriv; struct mlme_priv *pmlmepriv = &adapter->mlmepriv; u8 *mybssid = get_bssid(pmlmepriv); u8 *myhwaddr = myid(&adapter->eeprompriv); u8 * sta_addr = NULL; sint bmcast = IS_MCAST(pattrib->dst); if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) || (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) { /* filter packets that SA is myself or multicast or broadcast */ if (_rtw_memcmp(myhwaddr, pattrib->src, ETH_ALEN)){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" SA==myself \n")); ret= _FAIL; goto exit; } if( (!_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast) ){ ret= _FAIL; goto exit; } if( _rtw_memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || _rtw_memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || (!_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN)) ) { ret= _FAIL; goto exit; } sta_addr = pattrib->src; } else if(check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) { { /* For Station mode, sa and bssid should always be BSSID, and DA is my mac-address */ if(!_rtw_memcmp(pattrib->bssid, pattrib->src, ETH_ALEN) ) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("bssid != TA under STATION_MODE; drop pkt\n")); ret= _FAIL; goto exit; } sta_addr = pattrib->bssid; } } else if(check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) { if (bmcast) { /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */ if (!IS_MCAST(pattrib->bssid)){ ret= _FAIL; goto exit; } } else /* not mc-frame */ { /* For AP mode, if DA is non-MCAST, then it must be BSSID, and bssid == BSSID */ if(!_rtw_memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) { ret= _FAIL; goto exit; } sta_addr = pattrib->src; } } else if(check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) { memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); memcpy(pattrib->ta, pattrib->src, ETH_ALEN); sta_addr = mybssid; } else { ret = _FAIL; } if(bmcast) *psta = rtw_get_bcmc_stainfo(adapter); else *psta = rtw_get_stainfo(pstapriv, sta_addr); /* get ap_info */ if (*psta == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("can't get psta under sta2sta_data_frame ; drop pkt\n")); ret= _FAIL; goto exit; } exit: ; return ret; } sint ap2sta_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint ap2sta_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ) { u8 *ptr = precv_frame->u.hdr.rx_data; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; sint ret = _SUCCESS; struct sta_priv *pstapriv = &adapter->stapriv; struct mlme_priv *pmlmepriv = &adapter->mlmepriv; u8 *mybssid = get_bssid(pmlmepriv); u8 *myhwaddr = myid(&adapter->eeprompriv); sint bmcast = IS_MCAST(pattrib->dst); ; if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) && (check_fwstate(pmlmepriv, _FW_LINKED) == true || check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true ) ) { /* filter packets that SA is myself or multicast or broadcast */ if (_rtw_memcmp(myhwaddr, pattrib->src, ETH_ALEN)){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" SA==myself \n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s SA="MAC_FMT", myhwaddr="MAC_FMT"\n", __FUNCTION__, MAC_ARG(pattrib->src), MAC_ARG(myhwaddr)); #endif ret= _FAIL; goto exit; } /* da should be for me */ if((!_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN))&& (!bmcast)) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_, (" ap2sta_data_frame: compare DA fail; DA="MAC_FMT"\n", MAC_ARG(pattrib->dst))); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s DA="MAC_FMT"\n", __func__, MAC_ARG(pattrib->dst)); #endif ret= _FAIL; goto exit; } /* check BSSID */ if( _rtw_memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || _rtw_memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) || (!_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN)) ) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_, (" ap2sta_data_frame: compare BSSID fail ; BSSID="MAC_FMT"\n", MAC_ARG(pattrib->bssid))); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("mybssid="MAC_FMT"\n", MAC_ARG(mybssid))); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s BSSID="MAC_FMT", mybssid="MAC_FMT"\n", __FUNCTION__, MAC_ARG(pattrib->bssid), MAC_ARG(mybssid)); DBG_871X( "this adapter = %d, buddy adapter = %d\n", adapter->adapter_type, adapter->pbuddy_adapter->adapter_type ); #endif if(!bmcast) { DBG_871X("issue_deauth to the nonassociated ap=" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid)); issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); } ret= _FAIL; goto exit; } if(bmcast) *psta = rtw_get_bcmc_stainfo(adapter); else *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get ap_info */ if (*psta == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("ap2sta: can't get psta under STATION_MODE ; drop pkt\n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under STATION_MODE ; drop pkt\n", __FUNCTION__); #endif ret= _FAIL; goto exit; } /* if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { */ /* */ if (GetFrameSubType(ptr) & BIT(6)) { /* No data, will not indicate to upper layer, temporily count it here */ count_rx_stats(adapter, precv_frame, *psta); ret = RTW_RX_HANDLED; goto exit; } } else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) && (check_fwstate(pmlmepriv, _FW_LINKED) == true) ) { memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); memcpy(pattrib->ta, pattrib->src, ETH_ALEN); /* */ memcpy(pattrib->bssid, mybssid, ETH_ALEN); *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */ if (*psta == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("can't get psta under MP_MODE ; drop pkt\n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s can't get psta under WIFI_MP_STATE ; drop pkt\n", __FUNCTION__); #endif ret= _FAIL; goto exit; } } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) { /* Special case */ ret = RTW_RX_HANDLED; goto exit; } else { if(_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN)&& (!bmcast)) { *psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */ if (*psta == NULL) { DBG_871X("issue_deauth to the ap=" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->bssid)); issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); } } ret = _FAIL; #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s fw_state:0x%x\n", __FUNCTION__, get_fwstate(pmlmepriv)); #endif } exit: ; return ret; } sint sta2ap_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint sta2ap_data_frame( struct adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ) { u8 *ptr = precv_frame->u.hdr.rx_data; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &adapter->stapriv; struct mlme_priv *pmlmepriv = &adapter->mlmepriv; unsigned char *mybssid = get_bssid(pmlmepriv); sint ret=_SUCCESS; ; if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) { /* For AP mode, RA=BSSID, TX=STA(SRC_ADDR), A3=DST_ADDR */ if(!_rtw_memcmp(pattrib->bssid, mybssid, ETH_ALEN)) { ret= _FAIL; goto exit; } *psta = rtw_get_stainfo(pstapriv, pattrib->src); if (*psta == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("can't get psta under AP_MODE; drop pkt\n")); DBG_871X("issue_deauth to sta=" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src)); issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); ret = RTW_RX_HANDLED; goto exit; } process_pwrbit_data(adapter, precv_frame); if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { process_wmmps_data(adapter, precv_frame); } if (GetFrameSubType(ptr) & BIT(6)) { /* No data, will not indicate to upper layer, temporily count it here */ count_rx_stats(adapter, precv_frame, *psta); ret = RTW_RX_HANDLED; goto exit; } } else { u8 *myhwaddr = myid(&adapter->eeprompriv); if (!_rtw_memcmp(pattrib->ra, myhwaddr, ETH_ALEN)) { ret = RTW_RX_HANDLED; goto exit; } DBG_871X("issue_deauth to sta=" MAC_FMT " for the reason(7)\n", MAC_ARG(pattrib->src)); issue_deauth(adapter, pattrib->src, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); ret = RTW_RX_HANDLED; goto exit; } exit: ; return ret; } sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame); sint validate_recv_ctrl_frame(struct adapter *padapter, union recv_frame *precv_frame) { #ifdef CONFIG_AP_MODE struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &padapter->stapriv; u8 *pframe = precv_frame->u.hdr.rx_data; /* uint len = precv_frame->u.hdr.len; */ /* DBG_871X("+validate_recv_ctrl_frame\n"); */ if (GetFrameType(pframe) != WIFI_CTRL_TYPE) { return _FAIL; } /* receive the frames that ra(a1) is my address */ if (!_rtw_memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN)) { return _FAIL; } /* only handle ps-poll */ if(GetFrameSubType(pframe) == WIFI_PSPOLL) { u16 aid; u8 wmmps_ac=0; struct sta_info *psta=NULL; aid = GetAid(pframe); psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe)); if((psta==NULL) || (psta->aid!=aid)) { return _FAIL; } /* for rx pkt statistics */ psta->sta_stats.rx_ctrl_pkts++; switch(pattrib->priority) { case 1: case 2: wmmps_ac = psta->uapsd_bk&BIT(0); break; case 4: case 5: wmmps_ac = psta->uapsd_vi&BIT(0); break; case 6: case 7: wmmps_ac = psta->uapsd_vo&BIT(0); break; case 0: case 3: default: wmmps_ac = psta->uapsd_be&BIT(0); break; } if(wmmps_ac) return _FAIL; if(psta->state & WIFI_STA_ALIVE_CHK_STATE) { DBG_871X("%s alive check-rx ps-poll\n", __func__); psta->expire_to = pstapriv->expire_to; psta->state ^= WIFI_STA_ALIVE_CHK_STATE; } if((psta->state&WIFI_SLEEP_STATE) && (pstapriv->sta_dz_bitmap&BIT(psta->aid))) { _irqL irqL; _list *xmitframe_plist, *xmitframe_phead; struct xmit_frame *pxmitframe=NULL; struct xmit_priv *pxmitpriv = &padapter->xmitpriv; /* spin_lock_bh(&psta->sleep_q.lock); */ spin_lock_bh(&pxmitpriv->lock); xmitframe_phead = get_list_head(&psta->sleep_q); xmitframe_plist = get_next(xmitframe_phead); if ((rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) == false) { pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list); xmitframe_plist = get_next(xmitframe_plist); rtw_list_delete(&pxmitframe->list); psta->sleepq_len--; if(psta->sleepq_len>0) pxmitframe->attrib.mdata = 1; else pxmitframe->attrib.mdata = 0; pxmitframe->attrib.triggered = 1; /* DBG_871X("handling ps-poll, q_len=%d, tim=%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */ rtw_hal_xmitframe_enqueue(padapter, pxmitframe); if(psta->sleepq_len==0) { pstapriv->tim_bitmap &= ~BIT(psta->aid); /* upate BCN for TIM IE */ /* update_BCNTIM(padapter); */ update_beacon(padapter, _TIM_IE_, NULL, false); } /* spin_unlock_bh(&psta->sleep_q.lock); */ spin_unlock_bh(&pxmitpriv->lock); } else { /* spin_unlock_bh(&psta->sleep_q.lock); */ spin_unlock_bh(&pxmitpriv->lock); /* DBG_871X("no buffered packets to xmit\n"); */ if(pstapriv->tim_bitmap&BIT(psta->aid)) { if(psta->sleepq_len==0) { DBG_871X("no buffered packets to xmit\n"); /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */ issue_nulldata(padapter, psta->hwaddr, 0, 0, 0); } else { DBG_871X("error!psta->sleepq_len=%d\n", psta->sleepq_len); psta->sleepq_len=0; } pstapriv->tim_bitmap &= ~BIT(psta->aid); /* upate BCN for TIM IE */ /* update_BCNTIM(padapter); */ update_beacon(padapter, _TIM_IE_, NULL, false); } } } } #endif return _FAIL; } union recv_frame* recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame); sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame); sint validate_recv_mgnt_frame(struct adapter *padapter, union recv_frame *precv_frame) { /* struct mlme_priv *pmlmepriv = &padapter->mlmepriv; */ RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n")); precv_frame = recvframe_chk_defrag(padapter, precv_frame); if (precv_frame == NULL) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,("%s: fragment packet\n",__FUNCTION__)); return _SUCCESS; } { /* for rx pkt statistics */ struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(precv_frame->u.hdr.rx_data)); if (psta) { psta->sta_stats.rx_mgnt_pkts++; if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_BEACON) psta->sta_stats.rx_beacon_pkts++; else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBEREQ) psta->sta_stats.rx_probereq_pkts++; else if (GetFrameSubType(precv_frame->u.hdr.rx_data) == WIFI_PROBERSP) { if (_rtw_memcmp(padapter->eeprompriv.mac_addr, GetAddr1Ptr(precv_frame->u.hdr.rx_data), ETH_ALEN) == true) psta->sta_stats.rx_probersp_pkts++; else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data)) || is_multicast_mac_addr(GetAddr1Ptr(precv_frame->u.hdr.rx_data))) psta->sta_stats.rx_probersp_bm_pkts++; else psta->sta_stats.rx_probersp_uo_pkts++; } } } #ifdef CONFIG_INTEL_PROXIM if(padapter->proximity.proxim_on==true) { struct rx_pkt_attrib * pattrib=&precv_frame->u.hdr.attrib; struct recv_stat* prxstat=( struct recv_stat * ) precv_frame->u.hdr.rx_head ; u8 * pda,*psa,*pbssid,*ptr; ptr=precv_frame->u.hdr.rx_data; pda = get_da(ptr); psa = get_sa(ptr); pbssid = get_hdr_bssid(ptr); memcpy(pattrib->dst, pda, ETH_ALEN); memcpy(pattrib->src, psa, ETH_ALEN); memcpy(pattrib->bssid, pbssid, ETH_ALEN); switch(pattrib->to_fr_ds) { case 0: memcpy(pattrib->ra, pda, ETH_ALEN); memcpy(pattrib->ta, psa, ETH_ALEN); break; case 1: memcpy(pattrib->ra, pda, ETH_ALEN); memcpy(pattrib->ta, pbssid, ETH_ALEN); break; case 2: memcpy(pattrib->ra, pbssid, ETH_ALEN); memcpy(pattrib->ta, psa, ETH_ALEN); break; case 3: memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" case 3\n")); break; default: break; } pattrib->priority=0; pattrib->hdrlen = pattrib->to_fr_ds==3 ? 30 : 24; padapter->proximity.proxim_rx(padapter,precv_frame); } #endif mgt_dispatcher(padapter, precv_frame); return _SUCCESS; } sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame); sint validate_recv_data_frame(struct adapter *adapter, union recv_frame *precv_frame) { u8 bretry; u8 *psa, *pda, *pbssid; struct sta_info *psta = NULL; u8 *ptr = precv_frame->u.hdr.rx_data; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &adapter->stapriv; struct security_priv *psecuritypriv = &adapter->securitypriv; sint ret = _SUCCESS; bretry = GetRetry(ptr); pda = get_da(ptr); psa = get_sa(ptr); pbssid = get_hdr_bssid(ptr); if(pbssid == NULL){ #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s pbssid == NULL\n", __func__); #endif ret= _FAIL; goto exit; } memcpy(pattrib->dst, pda, ETH_ALEN); memcpy(pattrib->src, psa, ETH_ALEN); memcpy(pattrib->bssid, pbssid, ETH_ALEN); switch(pattrib->to_fr_ds) { case 0: memcpy(pattrib->ra, pda, ETH_ALEN); memcpy(pattrib->ta, psa, ETH_ALEN); ret = sta2sta_data_frame(adapter, precv_frame, &psta); break; case 1: memcpy(pattrib->ra, pda, ETH_ALEN); memcpy(pattrib->ta, pbssid, ETH_ALEN); ret = ap2sta_data_frame(adapter, precv_frame, &psta); break; case 2: memcpy(pattrib->ra, pbssid, ETH_ALEN); memcpy(pattrib->ta, psa, ETH_ALEN); ret = sta2ap_data_frame(adapter, precv_frame, &psta); break; case 3: memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN); ret =_FAIL; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" case 3\n")); break; default: ret =_FAIL; break; } if(ret ==_FAIL){ #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s case:%d, res:%d\n", __FUNCTION__, pattrib->to_fr_ds, ret); #endif goto exit; } else if (ret == RTW_RX_HANDLED) { goto exit; } if(psta==NULL){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" after to_fr_ds_chk; psta==NULL \n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s psta == NULL\n", __func__); #endif ret= _FAIL; goto exit; } /* psta->rssi = prxcmd->rssi; */ /* psta->signal_quality= prxcmd->sq; */ precv_frame->u.hdr.psta = psta; pattrib->amsdu=0; pattrib->ack_policy = 0; /* parsing QC field */ if(pattrib->qos == 1) { pattrib->priority = GetPriority((ptr + 24)); pattrib->ack_policy = GetAckpolicy((ptr + 24)); pattrib->amsdu = GetAMsdu((ptr + 24)); pattrib->hdrlen = pattrib->to_fr_ds==3 ? 32 : 26; if(pattrib->priority!=0 && pattrib->priority!=3) { adapter->recvpriv.bIsAnyNonBEPkts = true; } } else { pattrib->priority=0; pattrib->hdrlen = pattrib->to_fr_ds==3 ? 30 : 24; } if(pattrib->order)/* HT-CTRL 11n */ { pattrib->hdrlen += 4; } precv_frame->u.hdr.preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority]; /* decache, drop duplicate recv packets */ if(recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == _FAIL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("decache : drop pkt\n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s recv_decache return _FAIL\n", __func__); #endif ret= _FAIL; goto exit; } if(pattrib->privacy){ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("validate_recv_data_frame:pattrib->privacy=%x\n", pattrib->privacy)); 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))); GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra)); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n pattrib->encrypt=%d\n",pattrib->encrypt)); SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt); } else { pattrib->encrypt = 0; pattrib->iv_len = pattrib->icv_len = 0; } exit: ; return ret; } #ifdef CONFIG_IEEE80211W static sint validate_80211w_mgmt(struct adapter *adapter, union recv_frame *precv_frame) { struct mlme_priv *pmlmepriv = &adapter->mlmepriv; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; u8 *ptr = precv_frame->u.hdr.rx_data; u8 type; u8 subtype; type = GetFrameType(ptr); subtype = GetFrameSubType(ptr); /* bit(7)~bit(2) */ /* only support station mode */ if(check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED) && adapter->securitypriv.binstallBIPkey == true) { /* unicast management frame decrypt */ if(pattrib->privacy && !(IS_MCAST(GetAddr1Ptr(ptr))) && (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC || subtype == WIFI_ACTION)) { u8 *ppp, *mgmt_DATA; u32 data_len=0; ppp = GetAddr2Ptr(ptr); pattrib->bdecrypted = 0; pattrib->encrypt = _AES_; pattrib->hdrlen = sizeof(struct rtw_ieee80211_hdr_3addr); /* set iv and icv length */ SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt); memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN); /* actual management data frame body */ data_len = pattrib->pkt_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len; mgmt_DATA = rtw_zmalloc(data_len); if(mgmt_DATA == NULL) { DBG_871X("%s mgmt allocate fail !!!!!!!!!\n", __FUNCTION__); goto validate_80211w_fail; } /*/* dump the packet content before decrypt */ { int pp; printk("pattrib->pktlen = %d =>", pattrib->pkt_len); for(pp=0;pp< pattrib->pkt_len; pp++) printk(" %02x ", ptr[pp]); printk("\n"); }*/ precv_frame = decryptor(adapter, precv_frame); /* save actual management data frame body */ memcpy(mgmt_DATA, ptr+pattrib->hdrlen+pattrib->iv_len, data_len); /* overwrite the iv field */ memcpy(ptr+pattrib->hdrlen, mgmt_DATA, data_len); /* remove the iv and icv length */ pattrib->pkt_len = pattrib->pkt_len - pattrib->iv_len - pattrib->icv_len; rtw_mfree(mgmt_DATA, data_len); /*/* print packet content after decryption */ { int pp; printk("after decryption pattrib->pktlen = %d @@=>", pattrib->pkt_len); for(pp=0;pp< pattrib->pkt_len; pp++) printk(" %02x ", ptr[pp]); printk("\n"); }*/ if(!precv_frame) { DBG_871X("%s mgmt descrypt fail !!!!!!!!!\n", __FUNCTION__); goto validate_80211w_fail; } } else if(IS_MCAST(GetAddr1Ptr(ptr)) && (subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC)) { sint BIP_ret = _SUCCESS; /* verify BIP MME IE of broadcast/multicast de-auth/disassoc packet */ BIP_ret = rtw_BIP_verify(adapter, (u8 * )precv_frame); if(BIP_ret == _FAIL) { /* DBG_871X("802.11w BIP verify fail\n"); */ goto validate_80211w_fail; } else if(BIP_ret == RTW_RX_HANDLED) { /* DBG_871X("802.11w recv none protected packet\n"); */ /* issue sa query request */ issue_action_SA_Query(adapter, NULL, 0, 0); goto validate_80211w_fail; } }/* 802.11w protect */ else { if(subtype == WIFI_ACTION) { /* according 802.11-2012 standard, these five types are not robust types */ if( ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_PUBLIC && ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_HT && ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_UNPROTECTED_WNM && ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_SELF_PROTECTED && ptr[WLAN_HDR_A3_LEN] != RTW_WLAN_CATEGORY_P2P) { DBG_871X("action frame category=%d should robust\n", ptr[WLAN_HDR_A3_LEN]); goto validate_80211w_fail; } } else if(subtype == WIFI_DEAUTH || subtype == WIFI_DISASSOC) { DBG_871X("802.11w recv none protected packet\n"); /* issue sa query request */ issue_action_SA_Query(adapter, NULL, 0, 0); goto validate_80211w_fail; } } } return _SUCCESS; validate_80211w_fail: return _FAIL; } #endif /* CONFIG_IEEE80211W */ sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame); sint validate_recv_frame(struct adapter *adapter, union recv_frame *precv_frame) { /* shall check frame subtype, to / from ds, da, bssid */ /* then call check if rx seq/frag. duplicated. */ u8 type; u8 subtype; sint retval = _SUCCESS; struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; u8 bDumpRxPkt; u8 *ptr = precv_frame->u.hdr.rx_data; u8 ver =(unsigned char) (*ptr)&0x3 ; #ifdef CONFIG_AP_MODE struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; #endif #ifdef CONFIG_AP_MODE if (pmlmeext->sitesurvey_res.state == SCAN_PROCESS) { int ch_set_idx = rtw_ch_set_search_ch(pmlmeext->channel_set, rtw_get_oper_ch(adapter)); if (ch_set_idx >= 0) pmlmeext->channel_set[ch_set_idx].rx_count++; } #endif /* add version chk */ if(ver!=0){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_data_frame fail! (ver!=0)\n")); retval= _FAIL; goto exit; } type = GetFrameType(ptr); subtype = GetFrameSubType(ptr); /* bit(7)~bit(2) */ pattrib->to_fr_ds = get_tofr_ds(ptr); pattrib->frag_num = GetFragNum(ptr); pattrib->seq_num = GetSequence(ptr); pattrib->pw_save = GetPwrMgt(ptr); pattrib->mfrag = GetMFrag(ptr); pattrib->mdata = GetMData(ptr); pattrib->privacy = GetPrivacy(ptr); pattrib->order = GetOrder(ptr); rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt)); if(bDumpRxPkt ==1){/* dump all rx packets */ int i; DBG_871X("############################# \n"); for(i=0; i<64;i=i+8) DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), *(ptr+i+1), *(ptr+i+2) ,*(ptr+i+3) ,*(ptr+i+4),*(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); DBG_871X("############################# \n"); } else if(bDumpRxPkt ==2){ if(type== WIFI_MGT_TYPE){ int i; DBG_871X("############################# \n"); for(i=0; i<64;i=i+8) DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), *(ptr+i+1), *(ptr+i+2) ,*(ptr+i+3) ,*(ptr+i+4),*(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); DBG_871X("############################# \n"); } } else if(bDumpRxPkt ==3){ if(type== WIFI_DATA_TYPE){ int i; DBG_871X("############################# \n"); for(i=0; i<64;i=i+8) DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(ptr+i), *(ptr+i+1), *(ptr+i+2) ,*(ptr+i+3) ,*(ptr+i+4),*(ptr+i+5), *(ptr+i+6), *(ptr+i+7)); DBG_871X("############################# \n"); } } switch (type) { case WIFI_MGT_TYPE: /* mgnt */ #ifdef CONFIG_IEEE80211W if(validate_80211w_mgmt(adapter, precv_frame) == _FAIL) { retval = _FAIL; break; } #endif /* CONFIG_IEEE80211W */ retval = validate_recv_mgnt_frame(adapter, precv_frame); if (retval == _FAIL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_mgnt_frame fail\n")); } retval = _FAIL; /* only data frame return _SUCCESS */ break; case WIFI_CTRL_TYPE: /* ctrl */ retval = validate_recv_ctrl_frame(adapter, precv_frame); if (retval == _FAIL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_ctrl_frame fail\n")); } retval = _FAIL; /* only data frame return _SUCCESS */ break; case WIFI_DATA_TYPE: /* data */ rtw_led_control(adapter, LED_CTL_RX); pattrib->qos = (subtype & BIT(7))? 1:0; retval = validate_recv_data_frame(adapter, precv_frame); if (retval == _FAIL) { struct recv_priv *precvpriv = &adapter->recvpriv; /* RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_data_frame fail\n")); */ precvpriv->rx_drop++; } break; default: RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_data_frame fail! type=0x%x\n", type)); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME validate_recv_data_frame fail! type=0x%x\n", type); #endif retval = _FAIL; break; } exit: ; return retval; } /* remove the wlanhdr and add the eth_hdr */ sint wlanhdr_to_ethhdr ( union recv_frame *precvframe) { sint rmv_len; u16 eth_type, len; u8 bsnaphdr; u8 *psnap_type; struct ieee80211_snap_hdr *psnap; __be16 be_tmp; sint ret=_SUCCESS; struct adapter *adapter =precvframe->u.hdr.adapter; struct mlme_priv *pmlmepriv = &adapter->mlmepriv; u8 *ptr = get_recvframe_data(precvframe) ; /* point to frame_ctrl field */ struct rx_pkt_attrib *pattrib = & precvframe->u.hdr.attrib; ; if(pattrib->encrypt){ recvframe_pull_tail(precvframe, pattrib->icv_len); } psnap=(struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len); psnap_type=ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE; /* convert hdr + possible LLC headers into Ethernet header */ /* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */ if((_rtw_memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) && (_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2) == false) && (_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2)==false) )|| /* eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || */ _rtw_memcmp(psnap, rtw_bridge_tunnel_header, SNAP_SIZE)){ /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ bsnaphdr = true; } else { /* Leave Ethernet header part of hdr and full payload */ bsnaphdr = false; } rmv_len = pattrib->hdrlen + pattrib->iv_len +(bsnaphdr?SNAP_SIZE:0); len = precvframe->u.hdr.len - rmv_len; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n===pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n", pattrib->hdrlen, pattrib->iv_len)); memcpy(&be_tmp, ptr+rmv_len, 2); eth_type= ntohs(be_tmp); /* pattrib->ether_type */ pattrib->eth_type = eth_type; if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) { ptr += rmv_len ; *ptr = 0x87; *(ptr+1) = 0x12; eth_type = 0x8712; /* append rx status for mp test packets */ ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24); memcpy(ptr, get_rxmem(precvframe), 24); ptr+=24; } else { ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+ (bsnaphdr?2:0))); } memcpy(ptr, pattrib->dst, ETH_ALEN); memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN); if(!bsnaphdr) { be_tmp = htons(len); memcpy(ptr+12, &be_tmp, 2); } ; return ret; } /* perform defrag */ static union recv_frame * recvframe_defrag(struct adapter *adapter,_queue *defrag_q) { _list *plist, *phead; u8 *data,wlanhdr_offset; u8 curfragnum; struct recv_frame_hdr *pfhdr,*pnfhdr; union recv_frame* prframe, *pnextrframe; _queue *pfree_recv_queue; ; curfragnum=0; pfree_recv_queue=&adapter->recvpriv.free_recv_queue; phead = get_list_head(defrag_q); plist = get_next(phead); prframe = LIST_CONTAINOR(plist, union recv_frame, u); pfhdr=&prframe->u.hdr; rtw_list_delete(&(prframe->u.list)); if(curfragnum!=pfhdr->attrib.frag_num) { /* the first fragment number must be 0 */ /* free the whole queue */ rtw_free_recvframe(prframe, pfree_recv_queue); rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); return NULL; } curfragnum++; plist= get_list_head(defrag_q); plist = get_next(plist); data=get_recvframe_data(prframe); while(rtw_end_of_queue_search(phead, plist) == false) { pnextrframe = LIST_CONTAINOR(plist, union recv_frame , u); pnfhdr=&pnextrframe->u.hdr; /* check the fragment sequence (2nd ~n fragment frame) */ if(curfragnum!=pnfhdr->attrib.frag_num) { /* the fragment number must be increasing (after decache) */ /* release the defrag_q & prframe */ rtw_free_recvframe(prframe, pfree_recv_queue); rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); return NULL; } curfragnum++; /* copy the 2nd~n fragment frame's payload to the first fragment */ /* get the 2nd~last fragment frame's payload */ wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len; recvframe_pull(pnextrframe, wlanhdr_offset); /* append to first fragment frame's tail (if privacy frame, pull the ICV) */ recvframe_pull_tail(prframe, pfhdr->attrib.icv_len); /* memcpy */ memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len); recvframe_put(prframe, pnfhdr->len); pfhdr->attrib.icv_len=pnfhdr->attrib.icv_len; plist = get_next(plist); }; /* free the defrag_q queue and return the prframe */ rtw_free_recvframe_queue(defrag_q, pfree_recv_queue); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("Performance defrag!!!!!\n")); ; return prframe; } /* check if need to defrag, if needed queue the frame to defrag_q */ union recv_frame* recvframe_chk_defrag(struct adapter *padapter, union recv_frame *precv_frame) { u8 ismfrag; u8 fragnum; u8 *psta_addr; struct recv_frame_hdr *pfhdr; struct sta_info *psta; struct sta_priv *pstapriv; _list *phead; union recv_frame *prtnframe = NULL; _queue *pfree_recv_queue, *pdefrag_q; ; pstapriv = &padapter->stapriv; pfhdr = &precv_frame->u.hdr; pfree_recv_queue = &padapter->recvpriv.free_recv_queue; /* need to define struct of wlan header frame ctrl */ ismfrag = pfhdr->attrib.mfrag; fragnum = pfhdr->attrib.frag_num; psta_addr = pfhdr->attrib.ta; psta = rtw_get_stainfo(pstapriv, psta_addr); if (psta == NULL) { u8 type = GetFrameType(pfhdr->rx_data); if (type != WIFI_DATA_TYPE) { psta = rtw_get_bcmc_stainfo(padapter); pdefrag_q = &psta->sta_recvpriv.defrag_q; } else pdefrag_q = NULL; } else pdefrag_q = &psta->sta_recvpriv.defrag_q; if ((ismfrag==0) && (fragnum==0)) { prtnframe = precv_frame;/* isn't a fragment frame */ } if (ismfrag==1) { /* 0~(n-1) fragment frame */ /* enqueue to defraf_g */ if(pdefrag_q != NULL) { if(fragnum==0) { /* the first fragment */ if(_rtw_queue_empty(pdefrag_q) == false) { /* free current defrag_q */ rtw_free_recvframe_queue(pdefrag_q, pfree_recv_queue); } } /* Then enqueue the 0~(n-1) fragment into the defrag_q */ /* _rtw_spinlock(&pdefrag_q->lock); */ phead = get_list_head(pdefrag_q); rtw_list_insert_tail(&pfhdr->list, phead); /* _rtw_spinunlock(&pdefrag_q->lock); */ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("Enqueuq: ismfrag = %d, fragnum= %d\n", ismfrag,fragnum)); prtnframe=NULL; } else { /* can't find this ta's defrag_queue, so free this recv_frame */ rtw_free_recvframe(precv_frame, pfree_recv_queue); prtnframe=NULL; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("Free because pdefrag_q ==NULL: ismfrag = %d, fragnum= %d\n", ismfrag, fragnum)); } } if((ismfrag==0)&&(fragnum!=0)) { /* the last fragment frame */ /* enqueue the last fragment */ if(pdefrag_q != NULL) { /* _rtw_spinlock(&pdefrag_q->lock); */ phead = get_list_head(pdefrag_q); rtw_list_insert_tail(&pfhdr->list,phead); /* _rtw_spinunlock(&pdefrag_q->lock); */ /* call recvframe_defrag to defrag */ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("defrag: ismfrag = %d, fragnum= %d\n", ismfrag, fragnum)); precv_frame = recvframe_defrag(padapter, pdefrag_q); prtnframe=precv_frame; } else { /* can't find this ta's defrag_queue, so free this recv_frame */ rtw_free_recvframe(precv_frame, pfree_recv_queue); prtnframe=NULL; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("Free because pdefrag_q ==NULL: ismfrag = %d, fragnum= %d\n", ismfrag,fragnum)); } } if((prtnframe!=NULL)&&(prtnframe->u.hdr.attrib.privacy)) { /* after defrag we must check tkip mic code */ if(recvframe_chkmic(padapter, prtnframe)==_FAIL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvframe_chkmic(padapter, prtnframe)==_FAIL\n")); rtw_free_recvframe(prtnframe,pfree_recv_queue); prtnframe=NULL; } } ; return prtnframe; } #define ENDIAN_FREE 1 int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe); int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe) { int a_len, padding_len; u16 eth_type, nSubframe_Length; u8 nr_subframes, i; unsigned char *pdata; struct rx_pkt_attrib *pattrib; unsigned char *data_ptr; _pkt *sub_skb,*subframes[MAX_SUBFRAME_COUNT]; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &(precvpriv->free_recv_queue); int ret = _SUCCESS; nr_subframes = 0; pattrib = &prframe->u.hdr.attrib; recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen); if(prframe->u.hdr.attrib.iv_len >0) { recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len); } a_len = prframe->u.hdr.len; pdata = prframe->u.hdr.rx_data; while(a_len > ETH_HLEN) { /* Offset 12 denote 2 mac address */ #ifdef ENDIAN_FREE /* nSubframe_Length = ntohs(*((u16*)(pdata + 12))); */ nSubframe_Length = RTW_GET_BE16(pdata + 12); #else /* ENDIAN_FREE */ nSubframe_Length = *((u16*)(pdata + 12)); /* m==>change the length order */ nSubframe_Length = (nSubframe_Length>>8) + (nSubframe_Length<<8); /* ntohs(nSubframe_Length); */ #endif /* ENDIAN_FREE */ if( a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length) ) { DBG_871X("nRemain_Length is %d and nSubframe_Length is : %d\n",a_len,nSubframe_Length); goto exit; } /* move the data point to data content */ pdata += ETH_HLEN; a_len -= ETH_HLEN; /* Allocate new skb for releasing to upper layer */ sub_skb = rtw_skb_alloc(nSubframe_Length + 12); if(sub_skb) { skb_reserve(sub_skb, 12); data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length); memcpy(data_ptr, pdata, nSubframe_Length); } else { sub_skb = rtw_skb_clone(prframe->u.hdr.pkt); if(sub_skb) { sub_skb->data = pdata; sub_skb->len = nSubframe_Length; skb_set_tail_pointer(sub_skb, nSubframe_Length); } else { DBG_871X("rtw_skb_clone() Fail!!! , nr_subframes = %d\n",nr_subframes); break; } } /* sub_skb->dev = padapter->pnetdev; */ subframes[nr_subframes++] = sub_skb; if(nr_subframes >= MAX_SUBFRAME_COUNT) { DBG_871X("ParseSubframe(): Too many Subframes! Packets dropped!\n"); break; } pdata += nSubframe_Length; a_len -= nSubframe_Length; if(a_len != 0) { padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1)); if(padding_len == 4) { padding_len = 0; } if(a_len < padding_len) { goto exit; } pdata += padding_len; a_len -= padding_len; } } for(i=0; idata[6]); */ eth_type = RTW_GET_BE16(&sub_skb->data[6]); #else /* ENDIAN_FREE */ eth_type = (sub_skb->data[6] << 8) | sub_skb->data[7]; #endif /* ENDIAN_FREE */ if (sub_skb->len >= 8 && ((_rtw_memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) && eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || _rtw_memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE) )) { /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ skb_pull(sub_skb, SNAP_SIZE); memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); } else { __be16 len; /* Leave Ethernet header part of hdr and full payload */ len = htons(sub_skb->len); memcpy(skb_push(sub_skb, 2), &len, 2); memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); } /* Indicat the packets to upper layer */ { /* memset(sub_skb->cb, 0, sizeof(sub_skb->cb)); */ #ifdef CONFIG_BR_EXT /* Insert NAT2.5 RX here! */ struct mlme_priv *pmlmepriv = &padapter->mlmepriv; void *br_port = NULL; #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35)) br_port = padapter->pnetdev->br_port; #else /* (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35)) */ rcu_read_lock(); br_port = rcu_dereference(padapter->pnetdev->rx_handler_data); rcu_read_unlock(); #endif /* (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35)) */ if( br_port && (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_ADHOC_STATE) == true) ) { if (nat25_handle_frame(padapter, sub_skb) == -1) { /* priv->ext_stats.rx_data_drops++; */ /* DEBUG_ERR("RX DROP: nat25_handle_frame fail!\n"); */ /* return FAIL; */ /* bypass this frame to upper layer!! */ } } #endif /* CONFIG_BR_EXT */ sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev); sub_skb->dev = padapter->pnetdev; sub_skb->ip_summed = CHECKSUM_NONE; rtw_netif_rx(padapter->pnetdev, sub_skb); } } exit: prframe->u.hdr.len=0; rtw_free_recvframe(prframe, pfree_recv_queue);/* free this recv_frame */ return ret; } static int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) { u8 wsize = preorder_ctrl->wsize_b; u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF;/* 4096; */ /* Rx Reorder initialize condition. */ if (preorder_ctrl->indicate_seq == 0xFFFF) { preorder_ctrl->indicate_seq = seq_num; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d init IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, seq_num); #endif /* DbgPrint("check_indicate_seq, 1st->indicate_seq=%d\n", precvpriv->indicate_seq); */ } /* DbgPrint("enter->check_indicate_seq(): IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ /* Drop out the packet which SeqNum is smaller than WinStart */ if( SN_LESS(seq_num, preorder_ctrl->indicate_seq) ) { /* RT_TRACE(COMP_RX_REORDER, DBG_LOUD, ("CheckRxTsIndicateSeq(): Packet Drop! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, NewSeqNum)); */ /* DbgPrint("CheckRxTsIndicateSeq(): Packet Drop! IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ #ifdef DBG_RX_DROP_FRAME DBG_871X("%s IndicateSeq: %d > NewSeq: %d\n", __FUNCTION__, preorder_ctrl->indicate_seq, seq_num); #endif return false; } /* */ /* Sliding window manipulation. Conditions includes: */ /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */ /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */ /* */ if( SN_EQUAL(seq_num, preorder_ctrl->indicate_seq) ) { preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d SN_EQUAL IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, seq_num); #endif } else if(SN_LESS(wend, seq_num)) { /* RT_TRACE(COMP_RX_REORDER, DBG_LOUD, ("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, NewSeqNum)); */ /* DbgPrint("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ /* boundary situation, when seq_num cross 0xFFF */ if(seq_num >= (wsize - 1)) preorder_ctrl->indicate_seq = seq_num + 1 -wsize; else preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d SN_LESS(wend, seq_num) IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, seq_num); #endif } /* DbgPrint("exit->check_indicate_seq(): IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ return true; } int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe); int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe) { struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; _list *phead, *plist; union recv_frame *pnextrframe; struct rx_pkt_attrib *pnextattrib; phead = get_list_head(ppending_recvframe_queue); plist = get_next(phead); while(rtw_end_of_queue_search(phead, plist) == false) { pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u); pnextattrib = &pnextrframe->u.hdr.attrib; if(SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) { plist = get_next(plist); } else if( SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) { return false; } else { break; } } rtw_list_delete(&(prframe->u.hdr.list)); rtw_list_insert_tail(&(prframe->u.hdr.list), plist); return true; } int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced); int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced) { /* _irqL irql; */ /* u8 bcancelled; */ _list *phead, *plist; union recv_frame *prframe; struct rx_pkt_attrib *pattrib; /* u8 index = 0; */ int bPktInBuf = false; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; /* DbgPrint("+recv_indicatepkts_in_order\n"); */ /* _enter_critical_ex(&ppending_recvframe_queue->lock); */ /* _rtw_spinlock_ex(&ppending_recvframe_queue->lock); */ phead = get_list_head(ppending_recvframe_queue); plist = get_next(phead); /* Handling some condition for forced indicate case. */ if(bforced==true) { if(rtw_is_list_empty(phead)) { /* _exit_critical_ex(&ppending_recvframe_queue->lock); */ /* _rtw_spinunlock_ex(&ppending_recvframe_queue->lock); */ return true; } prframe = LIST_CONTAINOR(plist, union recv_frame, u); pattrib = &prframe->u.hdr.attrib; preorder_ctrl->indicate_seq = pattrib->seq_num; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif } /* Prepare indication list and indication. */ /* Check if there is any packet need indicate. */ while(!rtw_is_list_empty(phead)) { prframe = LIST_CONTAINOR(plist, union recv_frame, u); pattrib = &prframe->u.hdr.attrib; if(!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_indicatepkts_in_order: indicate=%d seq=%d amsdu=%d\n", preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu)); plist = get_next(plist); rtw_list_delete(&(prframe->u.hdr.list)); if(SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) { preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif } /* Set this as a lock to make sure that only one thread is indicating packet. */ /* pTS->RxIndicateState = RXTS_INDICATE_PROCESSING; */ /* Indicate packets */ /* RT_ASSERT((index<=REORDER_WIN_SIZE), ("RxReorderIndicatePacket(): Rx Reorder buffer full!! \n")); */ /* indicate this recv_frame */ /* DbgPrint("recv_indicatepkts_in_order, indicate_seq=%d, seq_num=%d\n", precvpriv->indicate_seq, pattrib->seq_num); */ if(!pattrib->amsdu) { /* DBG_871X("recv_indicatepkts_in_order, amsdu!=1, indicate_seq=%d, seq_num=%d\n", preorder_ctrl->indicate_seq, pattrib->seq_num); */ if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) { rtw_recv_indicatepkt(padapter, prframe);/* indicate this recv_frame */ } } else if(pattrib->amsdu==1) { if(amsdu_to_msdu(padapter, prframe)!=_SUCCESS) { rtw_free_recvframe(prframe, &precvpriv->free_recv_queue); } } else { /* error condition; */ } /* Update local variables. */ bPktInBuf = false; } else { bPktInBuf = true; break; } } /* return true; */ return bPktInBuf; } static int recv_indicatepkt_reorder(struct adapter *padapter, union recv_frame *prframe) { _irqL irql; int retval = _SUCCESS; struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; struct recv_reorder_ctrl *preorder_ctrl = prframe->u.hdr.preorder_ctrl; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; if(!pattrib->amsdu) { /* s1. */ wlanhdr_to_ethhdr(prframe); if (pattrib->qos!=1) { if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n" )); rtw_recv_indicatepkt(padapter, prframe); return _SUCCESS; } #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s pattrib->qos !=1\n", __FUNCTION__); #endif return _FAIL; } if (preorder_ctrl->enable == false) { /* indicate this recv_frame */ preorder_ctrl->indicate_seq = pattrib->seq_num; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif rtw_recv_indicatepkt(padapter, prframe); preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif return _SUCCESS; } } else if(pattrib->amsdu==1) { /* temp filter -> means didn't support A-MSDUs in a A-MPDU */ if (preorder_ctrl->enable == false) { preorder_ctrl->indicate_seq = pattrib->seq_num; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif retval = amsdu_to_msdu(padapter, prframe); preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096; #ifdef DBG_RX_SEQ DBG_871X("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __FUNCTION__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif if(retval != _SUCCESS){ #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __FUNCTION__); #endif } return retval; } } spin_lock_bh(&ppending_recvframe_queue->lock); RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_indicatepkt_reorder: indicate=%d seq=%d\n", preorder_ctrl->indicate_seq, pattrib->seq_num)); /* s2. check if winstart_b(indicate_seq) needs to been updated */ if(!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __FUNCTION__); #endif goto _err_exit; } /* s3. Insert all packet into Reorder Queue to maintain its ordering. */ if(!enqueue_reorder_recvframe(preorder_ctrl, prframe)) { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s enqueue_reorder_recvframe fail\n", __FUNCTION__); #endif goto _err_exit; } /* s4. */ /* Indication process. */ /* After Packet dropping and Sliding Window shifting as above, we can now just indicate the packets */ /* with the SeqNum smaller than latest WinStart and buffer other packets. */ /* */ /* For Rx Reorder condition: */ /* 1. All packets with SeqNum smaller than WinStart => Indicate */ /* 2. All packets with SeqNum larger than or equal to WinStart => Buffer it. */ /* */ if(recv_indicatepkts_in_order(padapter, preorder_ctrl, false)) { _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); spin_unlock_bh(&ppending_recvframe_queue->lock); } else { spin_unlock_bh(&ppending_recvframe_queue->lock); _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer); } return _SUCCESS; _err_exit: spin_unlock_bh(&ppending_recvframe_queue->lock); return _FAIL; } void rtw_reordering_ctrl_timeout_handler(void *pcontext) { _irqL irql; struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)pcontext; struct adapter *padapter = preorder_ctrl->padapter; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; if(padapter->bDriverStopped ||padapter->bSurpriseRemoved) { return; } /* DBG_871X("+rtw_reordering_ctrl_timeout_handler()=>\n"); */ spin_lock_bh(&ppending_recvframe_queue->lock); if(recv_indicatepkts_in_order(padapter, preorder_ctrl, true)==true) { _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); } spin_unlock_bh(&ppending_recvframe_queue->lock); } int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe); int process_recv_indicatepkts(struct adapter *padapter, union recv_frame *prframe) { int retval = _SUCCESS; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; struct ht_priv *phtpriv = &pmlmepriv->htpriv; if(phtpriv->ht_option==true) /* B/G/N Mode */ { if(recv_indicatepkt_reorder(padapter, prframe)!=_SUCCESS)/* including perform A-MPDU Rx Ordering Buffer Control */ { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s recv_indicatepkt_reorder error!\n", __FUNCTION__); #endif if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) { retval = _FAIL; return retval; } } } else /* B/G mode */ { retval=wlanhdr_to_ethhdr (prframe); if(retval != _SUCCESS) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("wlanhdr_to_ethhdr: drop pkt \n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr error!\n", __FUNCTION__); #endif return retval; } if ((padapter->bDriverStopped ==false)&&( padapter->bSurpriseRemoved==false)) { /* indicate this recv_frame */ RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n" )); rtw_recv_indicatepkt(padapter, prframe); } else { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n" )); RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved)); retval = _FAIL; return retval; } } return retval; } static int recv_func_prehandle(struct adapter *padapter, union recv_frame *rframe) { int ret = _SUCCESS; struct rx_pkt_attrib *pattrib = &rframe->u.hdr.attrib; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; /* check the frame crtl field and decache */ ret = validate_recv_frame(padapter, rframe); if (ret != _SUCCESS) { RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n")); rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */ goto exit; } exit: return ret; } static int recv_func_posthandle(struct adapter *padapter, union recv_frame *prframe) { int ret = _SUCCESS; union recv_frame *orig_prframe = prframe; struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; /* DATA FRAME */ rtw_led_control(padapter, LED_CTL_RX); prframe = decryptor(padapter, prframe); if (prframe == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("decryptor: drop pkt\n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s decryptor: drop pkt\n", __FUNCTION__); #endif ret = _FAIL; goto _recv_data_drop; } prframe = recvframe_chk_defrag(padapter, prframe); if(prframe==NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvframe_chk_defrag: drop pkt\n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s recvframe_chk_defrag: drop pkt\n", __FUNCTION__); #endif goto _recv_data_drop; } prframe=portctrl(padapter, prframe); if (prframe == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("portctrl: drop pkt \n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s portctrl: drop pkt\n", __FUNCTION__); #endif ret = _FAIL; goto _recv_data_drop; } count_rx_stats(padapter, prframe, NULL); ret = process_recv_indicatepkts(padapter, prframe); if (ret != _SUCCESS) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recv_func: process_recv_indicatepkts fail! \n")); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s process_recv_indicatepkts fail!\n", __FUNCTION__); #endif rtw_free_recvframe(orig_prframe, pfree_recv_queue);/* free this recv_frame */ goto _recv_data_drop; } _exit_recv_func: return ret; _recv_data_drop: precvpriv->rx_drop++; return ret; } int recv_func(struct adapter *padapter, union recv_frame *rframe); int recv_func(struct adapter *padapter, union recv_frame *rframe) { int ret; struct rx_pkt_attrib *prxattrib = &rframe->u.hdr.attrib; struct recv_priv *recvpriv = &padapter->recvpriv; struct security_priv *psecuritypriv=&padapter->securitypriv; struct mlme_priv *mlmepriv = &padapter->mlmepriv; /* check if need to handle uc_swdec_pending_queue*/ if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) { union recv_frame *pending_frame; int cnt = 0; while((pending_frame=rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) { cnt++; recv_func_posthandle(padapter, pending_frame); } if (cnt) DBG_871X(FUNC_ADPT_FMT" dequeue %d from uc_swdec_pending_queue\n", FUNC_ADPT_ARG(padapter), cnt); } ret = recv_func_prehandle(padapter, rframe); if(ret == _SUCCESS) { /* check if need to enqueue into uc_swdec_pending_queue*/ if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && !IS_MCAST(prxattrib->ra) && prxattrib->encrypt>0 && (prxattrib->bdecrypted == 0 ||psecuritypriv->sw_decrypt == true) && psecuritypriv->ndisauthtype == Ndis802_11AuthModeWPAPSK && !psecuritypriv->busetkipkey) { rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue); /* DBG_871X("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); */ if (recvpriv->free_recvframe_cnt < NR_RECVFRAME/4) { /* to prevent from recvframe starvation, get recvframe from uc_swdec_pending_queue to free_recvframe_cnt */ rframe = rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue); if (rframe) goto do_posthandle; } goto exit; } do_posthandle: ret = recv_func_posthandle(padapter, rframe); } exit: return ret; } s32 rtw_recv_entry(union recv_frame *precvframe) { struct adapter *padapter; struct recv_priv *precvpriv; s32 ret=_SUCCESS; ; /* RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("+rtw_recv_entry\n")); */ padapter = precvframe->u.hdr.adapter; precvpriv = &padapter->recvpriv; if ((ret = recv_func(padapter, precvframe)) == _FAIL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("rtw_recv_entry: recv_func return fail!!!\n")); goto _recv_entry_drop; } precvpriv->rx_pkts++; ; return ret; _recv_entry_drop: ; return ret; } void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS){ struct adapter *adapter = (struct adapter *)FunctionContext; struct recv_priv *recvpriv = &adapter->recvpriv; u32 tmp_s, tmp_q; u8 avg_signal_strength = 0; u8 avg_signal_qual = 0; u32 num_signal_strength = 0; u32 num_signal_qual = 0; u8 _alpha = 3; /* this value is based on converging_constant = 5000 and sampling_interval = 1000 */ if(adapter->recvpriv.is_signal_dbg) { /* update the user specific value, signal_strength_dbg, to signal_strength, rssi */ adapter->recvpriv.signal_strength= adapter->recvpriv.signal_strength_dbg; adapter->recvpriv.rssi=(s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg); } else { if(recvpriv->signal_strength_data.update_req == 0) {/* update_req is clear, means we got rx */ avg_signal_strength = recvpriv->signal_strength_data.avg_val; num_signal_strength = recvpriv->signal_strength_data.total_num; /* after avg_vals are accquired, we can re-stat the signal values */ recvpriv->signal_strength_data.update_req = 1; } if(recvpriv->signal_qual_data.update_req == 0) {/* update_req is clear, means we got rx */ avg_signal_qual = recvpriv->signal_qual_data.avg_val; num_signal_qual = recvpriv->signal_qual_data.total_num; /* after avg_vals are accquired, we can re-stat the signal values */ recvpriv->signal_qual_data.update_req = 1; } if (num_signal_strength == 0) { if (rtw_get_on_cur_ch_time(adapter) == 0 || rtw_get_passing_time_ms(rtw_get_on_cur_ch_time(adapter)) < 2 * adapter->mlmeextpriv.mlmext_info.bcn_interval #ifdef CONFIG_BT_COEXIST || ((BTDM_IsBtDisabled(adapter) == false) && (BT_IsBtInquiryPage(adapter) == true)) #endif ) { goto set_timer; } } if(check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == true || check_fwstate(&adapter->mlmepriv, _FW_LINKED) == false ) { goto set_timer; } /* update value of signal_strength, rssi, signal_qual */ tmp_s = (avg_signal_strength+(_alpha-1)*recvpriv->signal_strength); if(tmp_s %_alpha) tmp_s = tmp_s/_alpha + 1; else tmp_s = tmp_s/_alpha; if(tmp_s>100) tmp_s = 100; tmp_q = (avg_signal_qual+(_alpha-1)*recvpriv->signal_qual); if(tmp_q %_alpha) tmp_q = tmp_q/_alpha + 1; else tmp_q = tmp_q/_alpha; if(tmp_q>100) tmp_q = 100; recvpriv->signal_strength = tmp_s; recvpriv->rssi = (s8)translate_percentage_to_dbm(tmp_s); recvpriv->signal_qual = tmp_q; #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1 DBG_871X(FUNC_ADPT_FMT" signal_strength:%3u, rssi:%3d, signal_qual:%3u" ", num_signal_strength:%u, num_signal_qual:%u" ", on_cur_ch_ms:%d" "\n" , FUNC_ADPT_ARG(adapter) , recvpriv->signal_strength , recvpriv->rssi , recvpriv->signal_qual , num_signal_strength, num_signal_qual , rtw_get_on_cur_ch_time(adapter) ? rtw_get_passing_time_ms(rtw_get_on_cur_ch_time(adapter)) : 0 ); #endif } set_timer: rtw_set_signal_stat_timer(recvpriv); }