/****************************************************************************** * * 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 #if defined (PLATFORM_LINUX) && defined (PLATFORM_WINDOWS) #error "Shall be Linux or Windows, but not both!\n" #endif #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS); #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv) { _func_enter_; _rtw_memset((u8 *)psta_recvpriv, 0, sizeof (struct sta_recv_priv)); _rtw_spinlock_init(&psta_recvpriv->lock); //for(i=0; iblk_strms[i]); _rtw_init_queue(&psta_recvpriv->defrag_q); _func_exit_; } sint _rtw_init_recv_priv(struct recv_priv *precvpriv, _adapter *padapter) { sint i; union recv_frame *precvframe; sint res=_SUCCESS; _func_enter_; // We don't need to memset padapter->XXX to zero, because adapter is allocated by rtw_zvmalloc(). //_rtw_memset((unsigned char *)precvpriv, 0, sizeof (struct recv_priv)); _rtw_spinlock_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; } //_rtw_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++; } #ifdef CONFIG_USB_HCI precvpriv->rx_pending_cnt=1; _rtw_init_sema(&precvpriv->allrxreturnevt, 0); #endif res = rtw_hal_init_recv_priv(padapter); #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS rtw_init_timer(&precvpriv->signal_stat_timer, padapter, RTW_TIMER_HDL_NAME(signal_stat)); precvpriv->signal_stat_sampling_interval = 2000; //ms //precvpriv->signal_stat_converging_constant = 5000; //ms rtw_set_signal_stat_timer(precvpriv); #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS exit: _func_exit_; return res; } void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv); void rtw_mfree_recv_priv_lock(struct recv_priv *precvpriv) { _rtw_spinlock_free(&precvpriv->lock); #ifdef CONFIG_RECV_THREAD_MODE _rtw_free_sema(&precvpriv->recv_sema); _rtw_free_sema(&precvpriv->terminate_recvthread_sema); #endif _rtw_spinlock_free(&precvpriv->free_recv_queue.lock); _rtw_spinlock_free(&precvpriv->recv_pending_queue.lock); _rtw_spinlock_free(&precvpriv->free_recv_buf_queue.lock); #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX _rtw_spinlock_free(&precvpriv->recv_buf_pending_queue.lock); #endif // CONFIG_USE_USB_BUFFER_ALLOC_RX } void _rtw_free_recv_priv (struct recv_priv *precvpriv) { _adapter *padapter = precvpriv->adapter; _func_enter_; 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); _func_exit_; } union recv_frame *_rtw_alloc_recvframe (_queue *pfree_recv_queue) { union recv_frame *precvframe; _list *plist, *phead; _adapter *padapter; struct recv_priv *precvpriv; _func_enter_; 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--; } } _func_exit_; return precvframe; } union recv_frame *rtw_alloc_recvframe (_queue *pfree_recv_queue) { _irqL irqL; union recv_frame *precvframe; _enter_critical_bh(&pfree_recv_queue->lock, &irqL); precvframe = _rtw_alloc_recvframe(pfree_recv_queue); _exit_critical_bh(&pfree_recv_queue->lock, &irqL); 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; _adapter *padapter=precvframe->u.hdr.adapter; struct recv_priv *precvpriv = &padapter->recvpriv; _func_enter_; #ifdef CONFIG_CONCURRENT_MODE if(padapter->adapter_type > PRIMARY_ADAPTER) { padapter = padapter->pbuddy_adapter;//get primary_padapter precvpriv = &padapter->recvpriv; pfree_recv_queue = &precvpriv->free_recv_queue; precvframe->u.hdr.adapter = padapter; } #endif rtw_os_free_recvframe(precvframe); _enter_critical_bh(&pfree_recv_queue->lock, &irqL); 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++; } _exit_critical_bh(&pfree_recv_queue->lock, &irqL); _func_exit_; return _SUCCESS; } sint _rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue) { _adapter *padapter=precvframe->u.hdr.adapter; struct recv_priv *precvpriv = &padapter->recvpriv; _func_enter_; //_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++; } _func_exit_; return _SUCCESS; } sint rtw_enqueue_recvframe(union recv_frame *precvframe, _queue *queue) { sint ret; _irqL irqL; //_spinlock(&pfree_recv_queue->lock); _enter_critical_bh(&queue->lock, &irqL); ret = _rtw_enqueue_recvframe(precvframe, queue); //_rtw_spinunlock(&pfree_recv_queue->lock); _exit_critical_bh(&queue->lock, &irqL); 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; _func_enter_; _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_list_delete(&precvframe->u.hdr.list); // will do this in rtw_free_recvframe() rtw_free_recvframe(precvframe, pfree_recv_queue); } _rtw_spinunlock(&pframequeue->lock); _func_exit_; } u32 rtw_free_uc_swdec_pending_queue(_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; _enter_critical_bh(&queue->lock, &irqL); rtw_list_delete(&precvbuf->list); rtw_list_insert_head(&precvbuf->list, get_list_head(queue)); _exit_critical_bh(&queue->lock, &irqL); return _SUCCESS; } sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, _queue *queue) { _irqL irqL; #ifdef CONFIG_SDIO_HCI _enter_critical_bh(&queue->lock, &irqL); #else _enter_critical_ex(&queue->lock, &irqL); #endif/*#ifdef CONFIG_SDIO_HCI*/ rtw_list_delete(&precvbuf->list); rtw_list_insert_tail(&precvbuf->list, get_list_head(queue)); #ifdef CONFIG_SDIO_HCI _exit_critical_bh(&queue->lock, &irqL); #else _exit_critical_ex(&queue->lock, &irqL); #endif/*#ifdef CONFIG_SDIO_HCI*/ return _SUCCESS; } struct recv_buf *rtw_dequeue_recvbuf (_queue *queue) { _irqL irqL; struct recv_buf *precvbuf; _list *plist, *phead; #ifdef CONFIG_SDIO_HCI _enter_critical_bh(&queue->lock, &irqL); #else _enter_critical_ex(&queue->lock, &irqL); #endif/*#ifdef CONFIG_SDIO_HCI*/ 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); } #ifdef CONFIG_SDIO_HCI _exit_critical_bh(&queue->lock, &irqL); #else _exit_critical_ex(&queue->lock, &irqL); #endif/*#ifdef CONFIG_SDIO_HCI*/ return precvbuf; } sint recvframe_chkmic(_adapter *adapter, union recv_frame *precvframe); sint recvframe_chkmic(_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); _func_enter_; 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(&stainfo->dot11tkiprxmickey.skey[0],pframe,payload, datalen ,&miccode[0],(unsigned char)prxattrib->priority); //care the length of the data 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: _func_exit_; return res; } //decrypt and set the ivlen,icvlen of the recv_frame union recv_frame * decryptor(_adapter *padapter,union recv_frame *precv_frame); union recv_frame * decryptor(_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; _func_enter_; 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))) { #ifdef CONFIG_CONCURRENT_MODE if(!IS_MCAST(prxattrib->ra))//bc/mc packets use sw decryption for concurrent mode #endif psecuritypriv->hw_decrypted=_FALSE; #ifdef DBG_RX_DECRYPTOR DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n", __FUNCTION__, __LINE__, 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; #ifdef CONFIG_WAPI_SUPPORT case _SMS4_: rtw_sms4_decrypt(padapter, (u8 * )precv_frame); break; #endif default: break; } } else if(prxattrib->bdecrypted==1 && prxattrib->encrypt >0 && (psecuritypriv->busetkipkey==1 || prxattrib->encrypt !=_TKIP_ ) ) { #if 0 if((prxstat->icv==1)&&(prxattrib->encrypt!=_AES_)) { psecuritypriv->hw_decrypted=_FALSE; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("psecuritypriv->hw_decrypted=_FALSE")); rtw_free_recvframe(precv_frame, &padapter->recvpriv.free_recv_queue); return_packet=NULL; } else #endif { psecuritypriv->hw_decrypted=_TRUE; #ifdef DBG_RX_DECRYPTOR DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n", __FUNCTION__, __LINE__, prxattrib->bdecrypted, prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif } } else { #ifdef DBG_RX_DECRYPTOR DBG_871X("[%s] %d:prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n", __FUNCTION__, __LINE__, 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; } //recvframe_chkmic(adapter, precv_frame); //move to recvframme_defrag function _func_exit_; return return_packet; } //###set the security information in the recv_frame union recv_frame * portctrl(_adapter *adapter,union recv_frame * precv_frame); union recv_frame * portctrl(_adapter *adapter,union recv_frame * precv_frame) { u8 *psta_addr = NULL; u8 *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; _func_enter_; 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; _rtw_memcpy(ðer_type,ptr, 2); ether_type= ntohs((unsigned short )ether_type); 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; } _func_exit_; 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); _func_enter_; 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; _func_exit_; return _SUCCESS; } void process_pwrbit_data(_adapter *padapter, union recv_frame *precv_frame); void process_pwrbit_data(_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(_adapter *padapter, union recv_frame *precv_frame); void process_wmmps_data(_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; #ifdef CONFIG_TDLS if( !(psta->tdls_sta_state & TDLS_LINKED_STATE ) ) { #endif //CONFIG_TDLS if(!psta->qos_option) return; if(!(psta->qos_info&0xf)) return; #ifdef CONFIG_TDLS } #endif //CONFIG_TDLS 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 } #ifdef CONFIG_TDLS sint OnTDLS(_adapter *adapter, union recv_frame *precv_frame) { struct rx_pkt_attrib *pattrib = & precv_frame->u.hdr.attrib; sint ret = _SUCCESS; u8 *paction = get_recvframe_data(precv_frame); u8 category_field = 1; #ifdef CONFIG_WFD u8 WFA_OUI[3] = { 0x50, 0x6f, 0x9a }; #endif //CONFIG_WFD struct tdls_info *ptdlsinfo = &(adapter->tdlsinfo); //point to action field paction+=pattrib->hdrlen + pattrib->iv_len + SNAP_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN + category_field; if(ptdlsinfo->tdls_enable == _FALSE) { DBG_871X("recv tdls frame, " "but tdls haven't enabled\n"); ret = _FAIL; return ret; } switch(*paction){ case TDLS_SETUP_REQUEST: DBG_871X("recv tdls setup request frame from "MAC_FMT"\n", MAC_ARG(pattrib->src)); ret=On_TDLS_Setup_Req(adapter, precv_frame); break; case TDLS_SETUP_RESPONSE: DBG_871X("recv tdls setup response frame from "MAC_FMT"\n", MAC_ARG(pattrib->src)); ret=On_TDLS_Setup_Rsp(adapter, precv_frame); break; case TDLS_SETUP_CONFIRM: DBG_871X("recv tdls setup confirm frame from "MAC_FMT"\n", MAC_ARG(pattrib->src)); ret=On_TDLS_Setup_Cfm(adapter, precv_frame); break; case TDLS_TEARDOWN: DBG_871X("recv tdls teardown, free sta_info from "MAC_FMT"\n", MAC_ARG(pattrib->src)); ret=On_TDLS_Teardown(adapter, precv_frame); break; case TDLS_DISCOVERY_REQUEST: DBG_871X("recv tdls discovery request frame from "MAC_FMT"\n", MAC_ARG(pattrib->src)); ret=On_TDLS_Dis_Req(adapter, precv_frame); break; case TDLS_PEER_TRAFFIC_INDICATION: DBG_871X("recv tdls peer traffic indication frame\n"); ret=On_TDLS_Peer_Traffic_Indication(adapter, precv_frame); break; case TDLS_PEER_TRAFFIC_RESPONSE: DBG_871X("recv tdls peer traffic response frame\n"); ret=On_TDLS_Peer_Traffic_Rsp(adapter, precv_frame); break; case TDLS_CHANNEL_SWITCH_REQUEST: DBG_871X("recv tdls channel switch request frame\n"); ret=On_TDLS_Ch_Switch_Req(adapter, precv_frame); break; case TDLS_CHANNEL_SWITCH_RESPONSE: DBG_871X("recv tdls channel switch response frame\n"); ret=On_TDLS_Ch_Switch_Rsp(adapter, precv_frame); break; #ifdef CONFIG_WFD case 0x50: //First byte of WFA OUI if( _rtw_memcmp(WFA_OUI, (paction), 3) ) { if( *(paction + 3) == 0x04) //Probe request frame { //WFDTDLS: for sigma test, do not setup direct link automatically ptdlsinfo->dev_discovered = 1; DBG_871X("recv tunneled probe request frame\n"); issue_tunneled_probe_rsp(adapter, precv_frame); } if( *(paction + 3) == 0x05) //Probe response frame { //WFDTDLS: for sigma test, do not setup direct link automatically ptdlsinfo->dev_discovered = 1; DBG_871X("recv tunneled probe response frame\n"); } } break; #endif //CONFIG_WFD default: DBG_871X("receive TDLS frame %d but not support\n", *paction); ret=_FAIL; break; } exit: return ret; } #endif void count_rx_stats(_adapter *padapter, union recv_frame *prframe, struct sta_info*sta); void count_rx_stats(_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; #ifdef CONFIG_TDLS if(psta->tdls_sta_state & TDLS_LINKED_STATE) { struct sta_info *pap_sta = NULL; pap_sta = rtw_get_stainfo(&padapter->stapriv, get_bssid(&padapter->mlmepriv)); if(pap_sta) { pstats = &pap_sta->sta_stats; pstats->rx_data_pkts++; pstats->rx_bytes += sz; } } #endif //CONFIG_TDLS } #ifdef CONFIG_CHECK_LEAVE_LPS traffic_check_for_leave_lps(padapter, _FALSE, 0); #endif //CONFIG_LPS } sint sta2sta_data_frame( _adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint sta2sta_data_frame( _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); #ifdef CONFIG_TDLS struct tdls_info *ptdlsinfo = &adapter->tdlsinfo; struct sta_info *ptdls_sta=NULL; u8 *psnap_type=ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE; //frame body located after [+2]: ether-type, [+1]: payload type u8 *pframe_body = psnap_type+2+1; #endif _func_enter_; //DBG_871X("[%s] %d, seqnum:%d\n", __FUNCTION__, __LINE__, pattrib->seq_num); 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) { #ifdef CONFIG_TDLS //direct link data transfer if(ptdlsinfo->link_established == _TRUE){ ptdls_sta = rtw_get_stainfo(pstapriv, pattrib->src); if(ptdls_sta==NULL) { ret=_FAIL; goto exit; } else if(ptdls_sta->tdls_sta_state&TDLS_LINKED_STATE) { // filter packets that SA is myself or multicast or broadcast if (_rtw_memcmp(myhwaddr, pattrib->src, ETH_ALEN)){ ret= _FAIL; goto exit; } // da should be for me if((!_rtw_memcmp(myhwaddr, pattrib->dst, ETH_ALEN))&& (!bmcast)) { 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)) ) { ret= _FAIL; goto exit; } //process UAPSD tdls sta process_pwrbit_data(adapter, precv_frame); // if NULL-frame, check pwrbit if ((GetFrameSubType(ptr) & WIFI_DATA_NULL) == WIFI_DATA_NULL) { //NULL-frame with pwrbit=1, buffer_STA should buffer frames for sleep_STA if(GetPwrMgt(ptr)) { DBG_871X("TDLS: recv peer null frame with pwr bit 1\n"); //ptdls_sta->tdls_sta_state|=TDLS_PEER_SLEEP_STATE; // it would be triggered when we are off channel and receiving NULL DATA // we can confirm that peer STA is at off channel } else if(ptdls_sta->tdls_sta_state&TDLS_CH_SWITCH_ON_STATE) { if((ptdls_sta->tdls_sta_state & TDLS_PEER_AT_OFF_STATE) != TDLS_PEER_AT_OFF_STATE) { issue_nulldata_to_TDLS_peer_STA(adapter, ptdls_sta->hwaddr, 0, 0, 0); ptdls_sta->tdls_sta_state |= TDLS_PEER_AT_OFF_STATE; On_TDLS_Peer_Traffic_Rsp(adapter, precv_frame); } } //[TDLS] TODO: Updated BSSID's seq. DBG_871X("drop Null Data\n"); ptdls_sta->tdls_sta_state &= ~(TDLS_WAIT_PTR_STATE); ret= _FAIL; goto exit; } //receive some of all TDLS management frames, process it at ON_TDLS if((_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_TDLS, 2))){ ret= OnTDLS(adapter, precv_frame); goto exit; } if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { process_wmmps_data(adapter, precv_frame); } ptdls_sta->tdls_sta_state &= ~(TDLS_WAIT_PTR_STATE); } sta_addr = pattrib->src; } else #endif //CONFIG_TDLS { // 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) { _rtw_memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); _rtw_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 #ifdef CONFIG_TDLS if(ptdls_sta != NULL) { *psta = ptdls_sta; } #endif //CONFIG_TDLS if (*psta == NULL) { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("can't get psta under sta2sta_data_frame ; drop pkt\n")); #ifdef CONFIG_MP_INCLUDED if (adapter->registrypriv.mp_mode == 1) { if(check_fwstate(pmlmepriv, WIFI_MP_STATE) == _TRUE) adapter->mppriv.rx_pktloss++; } #endif ret= _FAIL; goto exit; } exit: _func_exit_; return ret; } sint ap2sta_data_frame( _adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint ap2sta_data_frame( _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); _func_enter_; 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) ) { _rtw_memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN); _rtw_memcpy(pattrib->ra, pattrib->dst, ETH_ALEN); _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN); // _rtw_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: _func_exit_; return ret; } sint sta2ap_data_frame( _adapter *adapter, union recv_frame *precv_frame, struct sta_info**psta ); sint sta2ap_data_frame( _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; _func_enter_; 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: _func_exit_; return ret; } sint validate_recv_ctrl_frame(_adapter *padapter, union recv_frame *precv_frame); sint validate_recv_ctrl_frame(_adapter *padapter, union recv_frame *precv_frame) { struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &padapter->stapriv; u8 *pframe = precv_frame->u.hdr.rx_data; struct sta_info *psta=NULL; //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; } psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe)); if (psta==NULL) { return _FAIL; } //for rx pkt statistics psta->sta_stats.rx_ctrl_pkts++; //only handle ps-poll if(GetFrameSubType(pframe) == WIFI_PSPOLL) { #ifdef CONFIG_AP_MODE u16 aid; u8 wmmps_ac=0; aid = GetAid(pframe); if(psta->aid!=aid) { return _FAIL; } 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; //_enter_critical_bh(&psta->sleep_q.lock, &irqL); _enter_critical_bh(&pxmitpriv->lock, &irqL); 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); #if 0 _exit_critical_bh(&psta->sleep_q.lock, &irqL); if(rtw_hal_xmit(padapter, pxmitframe) == _TRUE) { rtw_os_xmit_complete(padapter, pxmitframe); } _enter_critical_bh(&psta->sleep_q.lock, &irqL); #endif rtw_hal_xmitframe_enqueue(padapter, pxmitframe); if(psta->sleepq_len==0) { pstapriv->tim_bitmap &= ~BIT(psta->aid); //DBG_871X("after handling ps-poll, tim=%x\n", pstapriv->tim_bitmap); //upate BCN for TIM IE //update_BCNTIM(padapter); update_beacon(padapter, _TIM_IE_, NULL, _TRUE); } //_exit_critical_bh(&psta->sleep_q.lock, &irqL); _exit_critical_bh(&pxmitpriv->lock, &irqL); } else { //_exit_critical_bh(&psta->sleep_q.lock, &irqL); _exit_critical_bh(&pxmitpriv->lock, &irqL); //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_in_interrupt(padapter, psta->hwaddr); } 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, _TRUE); } } } #endif //CONFIG_AP_MODE } else if(GetFrameSubType(pframe) == WIFI_NDPA) { #ifdef CONFIG_BEAMFORMING beamforming_get_ndpa_frame(padapter, precv_frame); #endif } return _FAIL; } union recv_frame* recvframe_chk_defrag(PADAPTER padapter, union recv_frame *precv_frame); sint validate_recv_mgnt_frame(PADAPTER padapter, union recv_frame *precv_frame); sint validate_recv_mgnt_frame(PADAPTER padapter, union recv_frame *precv_frame) { //struct mlme_priv *pmlmepriv = &adapter->mlmepriv; RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("+validate_recv_mgnt_frame\n")); #if 0 if(check_fwstate(pmlmepriv, WIFI_AP_STATE) == _TRUE) { #ifdef CONFIG_NATIVEAP_MLME mgt_dispatcher(padapter, precv_frame); #else rtw_hostapd_mlme_rx(padapter, precv_frame); #endif } else { mgt_dispatcher(padapter, precv_frame); } #endif 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); _rtw_memcpy(pattrib->dst, pda, ETH_ALEN); _rtw_memcpy(pattrib->src, psa, ETH_ALEN); _rtw_memcpy(pattrib->bssid, pbssid, ETH_ALEN); switch(pattrib->to_fr_ds) { case 0: _rtw_memcpy(pattrib->ra, pda, ETH_ALEN); _rtw_memcpy(pattrib->ta, psa, ETH_ALEN); break; case 1: _rtw_memcpy(pattrib->ra, pda, ETH_ALEN); _rtw_memcpy(pattrib->ta, pbssid, ETH_ALEN); break; case 2: _rtw_memcpy(pattrib->ra, pbssid, ETH_ALEN); _rtw_memcpy(pattrib->ta, psa, ETH_ALEN); break; case 3: _rtw_memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); _rtw_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(_adapter *adapter, union recv_frame *precv_frame); sint validate_recv_data_frame(_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; _func_enter_; 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; } _rtw_memcpy(pattrib->dst, pda, ETH_ALEN); _rtw_memcpy(pattrib->src, psa, ETH_ALEN); _rtw_memcpy(pattrib->bssid, pbssid, ETH_ALEN); switch(pattrib->to_fr_ds) { case 0: _rtw_memcpy(pattrib->ra, pda, ETH_ALEN); _rtw_memcpy(pattrib->ta, psa, ETH_ALEN); ret = sta2sta_data_frame(adapter, precv_frame, &psta); break; case 1: _rtw_memcpy(pattrib->ra, pda, ETH_ALEN); _rtw_memcpy(pattrib->ta, pbssid, ETH_ALEN); ret = ap2sta_data_frame(adapter, precv_frame, &psta); break; case 2: _rtw_memcpy(pattrib->ra, pbssid, ETH_ALEN); _rtw_memcpy(pattrib->ta, psa, ETH_ALEN); ret = sta2ap_data_frame(adapter, precv_frame, &psta); break; case 3: _rtw_memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); _rtw_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 0 if(psta->tdls_sta_state & TDLS_LINKED_STATE ) { if(psta->dot118021XPrivacy==_AES_) pattrib->encrypt=psta->dot118021XPrivacy; } #endif //CONFIG_TDLS 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))); #ifdef CONFIG_TDLS if((psta->tdls_sta_state & TDLS_LINKED_STATE) && (psta->dot118021XPrivacy==_AES_)) { pattrib->encrypt=psta->dot118021XPrivacy; } else #endif //CONFIG_TDLS 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: _func_exit_; return ret; } #ifdef CONFIG_IEEE80211W static sint validate_80211w_mgmt(_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); _rtw_memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN); _rtw_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 _rtw_memcpy(mgmt_DATA, ptr+pattrib->hdrlen+pattrib->iv_len, data_len); //overwrite the iv field _rtw_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(_adapter *adapter, union recv_frame *precv_frame); sint validate_recv_frame(_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 *ptr = precv_frame->u.hdr.rx_data; u8 ver =(unsigned char) (*ptr)&0x3 ; #ifdef CONFIG_FIND_BEST_CHANNEL struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; #endif #ifdef CONFIG_TDLS struct tdls_info *ptdlsinfo = &adapter->tdlsinfo; #endif //CONFIG_TDLS #ifdef CONFIG_WAPI_SUPPORT PRT_WAPI_T pWapiInfo = &adapter->wapiInfo; struct recv_frame_hdr *phdr = &precv_frame->u.hdr; u8 wai_pkt = 0; u16 sc; u8 external_len = 0; #endif _func_enter_; #ifdef CONFIG_FIND_BEST_CHANNEL 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 #ifdef CONFIG_TDLS if(ptdlsinfo->ch_sensing==1 && ptdlsinfo->cur_channel !=0){ ptdlsinfo->collect_pkt_num[ptdlsinfo->cur_channel-1]++; } #endif //CONFIG_TDLS #ifdef RTK_DMP_PLATFORM if ( 0 ) { DBG_871X("++\n"); { int i; for(i=0; i<64;i=i+8) DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:", *(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"); } #endif //RTK_DMP_PLATFORM //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); #ifdef CONFIG_WAPI_SUPPORT sc = (pattrib->seq_num<<4) | pattrib->frag_num; #endif #if 1 //Dump rx packets { u8 bDumpRxPkt; 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"); } } } #endif 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 #ifdef CONFIG_WAPI_SUPPORT if(pattrib->qos) external_len = 2; else external_len= 0; wai_pkt = rtw_wapi_is_wai_packet(adapter,ptr); phdr->bIsWaiPacket = wai_pkt; if(wai_pkt !=0){ if(sc != adapter->wapiInfo.wapiSeqnumAndFragNum) { adapter->wapiInfo.wapiSeqnumAndFragNum = sc; } else { retval = _FAIL; break; } } else{ if(rtw_wapi_drop_for_key_absent(adapter,GetAddr2Ptr(ptr))){ retval=_FAIL; WAPI_TRACE(WAPI_RX,"drop for key absent for rx \n"); break; } } #endif 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: _func_exit_; return retval; } //remove the wlanhdr and add the eth_hdr #if 1 sint wlanhdr_to_ethhdr ( union recv_frame *precvframe); 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; sint ret=_SUCCESS; _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; _func_enter_; 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)); _rtw_memcpy(ð_type, ptr+rmv_len, 2); eth_type= ntohs((unsigned short )eth_type); //pattrib->ether_type pattrib->eth_type = eth_type; #ifdef CONFIG_AUTO_AP_MODE if (0x8899 == pattrib->eth_type) { struct sta_info *psta = precvframe->u.hdr.psta; DBG_871X("wlan rx: got eth_type=0x%x\n", pattrib->eth_type); if (psta && psta->isrc && psta->pid>0) { u16 rx_pid; rx_pid = *(u16*)(ptr+rmv_len+2); DBG_871X("wlan rx(pid=0x%x): sta("MAC_FMT") pid=0x%x\n", rx_pid, MAC_ARG(psta->hwaddr), psta->pid); if(rx_pid == psta->pid) { int i; u16 len = *(u16*)(ptr+rmv_len+4); //u16 ctrl_type = *(u16*)(ptr+rmv_len+6); //DBG_871X("RC: len=0x%x, ctrl_type=0x%x\n", len, ctrl_type); DBG_871X("RC: len=0x%x\n", len); for(i=0;idst, ETH_ALEN); _rtw_memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN); if(!bsnaphdr) { len = htons(len); _rtw_memcpy(ptr+12, &len, 2); } _func_exit_; return ret; } #else sint wlanhdr_to_ethhdr ( union recv_frame *precvframe) { sint rmv_len; u16 eth_type; u8 bsnaphdr; u8 *psnap_type; struct ieee80211_snap_hdr *psnap; sint ret=_SUCCESS; _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; struct _vlan *pvlan = NULL; _func_enter_; psnap=(struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len); psnap_type=ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE; if (psnap->dsap==0xaa && psnap->ssap==0xaa && psnap->ctrl==0x03) { if (_rtw_memcmp(psnap->oui, oui_rfc1042, WLAN_IEEE_OUI_LEN)) bsnaphdr=_TRUE;//wlan_pkt_format = WLAN_PKT_FORMAT_SNAP_RFC1042; else if (_rtw_memcmp(psnap->oui, SNAP_HDR_APPLETALK_DDP, WLAN_IEEE_OUI_LEN) && _rtw_memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_DDP, 2) ) bsnaphdr=_TRUE; //wlan_pkt_format = WLAN_PKT_FORMAT_APPLETALK; else if (_rtw_memcmp( psnap->oui, oui_8021h, WLAN_IEEE_OUI_LEN)) bsnaphdr=_TRUE; //wlan_pkt_format = WLAN_PKT_FORMAT_SNAP_TUNNEL; else { RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("drop pkt due to invalid frame format!\n")); ret= _FAIL; goto exit; } } else bsnaphdr=_FALSE;//wlan_pkt_format = WLAN_PKT_FORMAT_OTHERS; rmv_len = pattrib->hdrlen + pattrib->iv_len +(bsnaphdr?SNAP_SIZE:0); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("===pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n", pattrib->hdrlen, pattrib->iv_len)); if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == _TRUE) { ptr += rmv_len ; *ptr = 0x87; *(ptr+1) = 0x12; //back to original pointer ptr -= rmv_len; } ptr += rmv_len ; _rtw_memcpy(ð_type, ptr, 2); eth_type= ntohs((unsigned short )eth_type); //pattrib->ether_type ptr +=2; if(pattrib->encrypt){ recvframe_pull_tail(precvframe, pattrib->icv_len); } if(eth_type == 0x8100) //vlan { pvlan = (struct _vlan *) ptr; //eth_type = get_vlan_encap_proto(pvlan); //eth_type = pvlan->h_vlan_encapsulated_proto;//? rmv_len += 4; ptr+=4; } if(eth_type==0x0800)//ip { //struct iphdr* piphdr = (struct iphdr*) ptr; //__u8 tos = (unsigned char)(pattrib->priority & 0xff); //piphdr->tos = tos; //if (piphdr->protocol == 0x06) //{ // RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("@@@===recv tcp len:%d @@@===\n", precvframe->u.hdr.len)); //} } else if(eth_type==0x8712)// append rx status for mp test packets { //ptr -= 16; //_rtw_memcpy(ptr, get_rxmem(precvframe), 16); } else { #ifdef PLATFORM_OS_XP NDIS_PACKET_8021Q_INFO VlanPriInfo; UINT32 UserPriority = precvframe->u.hdr.attrib.priority; UINT32 VlanID = (pvlan!=NULL ? get_vlan_id(pvlan) : 0 ); VlanPriInfo.Value = // Get current value. NDIS_PER_PACKET_INFO_FROM_PACKET(precvframe->u.hdr.pkt, Ieee8021QInfo); VlanPriInfo.TagHeader.UserPriority = UserPriority; VlanPriInfo.TagHeader.VlanId = VlanID ; VlanPriInfo.TagHeader.CanonicalFormatId = 0; // Should be zero. VlanPriInfo.TagHeader.Reserved = 0; // Should be zero. NDIS_PER_PACKET_INFO_FROM_PACKET(precvframe->u.hdr.pkt, Ieee8021QInfo) = VlanPriInfo.Value; #endif } if(eth_type==0x8712)// append rx status for mp test packets { ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24); _rtw_memcpy(ptr, get_rxmem(precvframe), 24); ptr+=24; } else ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)); _rtw_memcpy(ptr, pattrib->dst, ETH_ALEN); _rtw_memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN); eth_type = htons((unsigned short)eth_type) ; _rtw_memcpy(ptr+12, ð_type, 2); exit: _func_exit_; return ret; } #endif #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) #ifdef PLATFORM_LINUX static void recvframe_expand_pkt( PADAPTER padapter, union recv_frame *prframe) { struct recv_frame_hdr *pfhdr; _pkt *ppkt; u8 shift_sz; u32 alloc_sz; pfhdr = &prframe->u.hdr; // 6 is for IP header 8 bytes alignment in QoS packet case. if (pfhdr->attrib.qos) shift_sz = 6; else shift_sz = 0; // for first fragment packet, need to allocate // (1536 + RXDESC_SIZE + drvinfo_sz) to reassemble packet // 8 is for skb->data 8 bytes alignment. // alloc_sz = _RND(1536 + RXDESC_SIZE + pfhdr->attrib.drvinfosize + shift_sz + 8, 128); alloc_sz = 1664; // round (1536 + 24 + 32 + shift_sz + 8) to 128 bytes alignment //3 1. alloc new skb // prepare extra space for 4 bytes alignment ppkt = rtw_skb_alloc(alloc_sz); if (!ppkt) return; // no way to expand //3 2. Prepare new skb to replace & release old skb // force ppkt->data at 8-byte alignment address skb_reserve(ppkt, 8 - ((SIZE_PTR)ppkt->data & 7)); // force ip_hdr at 8-byte alignment address according to shift_sz skb_reserve(ppkt, shift_sz); // copy data to new pkt _rtw_memcpy(skb_put(ppkt, pfhdr->len), pfhdr->rx_data, pfhdr->len); rtw_skb_free(pfhdr->pkt); // attach new pkt to recvframe pfhdr->pkt = ppkt; pfhdr->rx_head = ppkt->head; pfhdr->rx_data = ppkt->data; pfhdr->rx_tail = skb_tail_pointer(ppkt); pfhdr->rx_end = skb_end_pointer(ppkt); } #else #warning "recvframe_expand_pkt not implement, defrag may crash system" #endif #endif //perform defrag union recv_frame * recvframe_defrag(_adapter *adapter,_queue *defrag_q); union recv_frame * recvframe_defrag(_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; _func_enter_; 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; } #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) #ifndef CONFIG_SDIO_RX_COPY recvframe_expand_pkt(adapter, prframe); #endif #endif 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 _rtw_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")); _func_exit_; return prframe; } //check if need to defrag, if needed queue the frame to defrag_q union recv_frame* recvframe_chk_defrag(PADAPTER 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; _func_enter_; 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; } } _func_exit_; return prtnframe; } int amsdu_to_msdu(_adapter *padapter, union recv_frame *prframe) { int a_len, padding_len; u16 nSubframe_Length; u8 nr_subframes, i; u8 *pdata; _pkt *sub_pkt,*subframes[MAX_SUBFRAME_COUNT]; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &(precvpriv->free_recv_queue); int ret = _SUCCESS; nr_subframes = 0; 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 */ nSubframe_Length = RTW_GET_BE16(pdata + 12); if( a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length) ) { DBG_871X("nRemain_Length is %d and nSubframe_Length is : %d\n",a_len,nSubframe_Length); break; } sub_pkt = rtw_os_alloc_msdu_pkt(prframe, nSubframe_Length, pdata); if (sub_pkt == NULL) { DBG_871X("%s(): allocate sub packet fail !!!\n",__FUNCTION__); break; } /* move the data point to data content */ pdata += ETH_HLEN; a_len -= ETH_HLEN; subframes[nr_subframes++] = sub_pkt; 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) { DBG_871X("ParseSubframe(): a_len < padding_len !\n"); break; } pdata += padding_len; a_len -= padding_len; } } for(i=0; iu.hdr.attrib); } } prframe->u.hdr.len = 0; rtw_free_recvframe(prframe, pfree_recv_queue);//free this recv_frame return ret; } int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num); int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) { PADAPTER padapter = preorder_ctrl->padapter; struct dvobj_priv *psdpriv = padapter->dvobj; struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; 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; pdbgpriv->dbg_rx_ampdu_window_shift_cnt++; #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; //DbgPrint("+enqueue_reorder_recvframe()\n"); //_enter_critical_ex(&ppending_recvframe_queue->lock, &irql); //_rtw_spinlock_ex(&ppending_recvframe_queue->lock); 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)) { //Duplicate entry is found!! Do not insert current entry. //RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); return _FALSE; } else { break; } //DbgPrint("enqueue_reorder_recvframe():while\n"); } //_enter_critical_ex(&ppending_recvframe_queue->lock, &irql); //_rtw_spinlock_ex(&ppending_recvframe_queue->lock); rtw_list_delete(&(prframe->u.hdr.list)); rtw_list_insert_tail(&(prframe->u.hdr.list), plist); //_rtw_spinunlock_ex(&ppending_recvframe_queue->lock); //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); //RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); return _TRUE; } void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq); void recv_indicatepkts_pkt_loss_cnt(struct debug_priv *pdbgpriv, u64 prev_seq, u64 current_seq) { if(current_seq < prev_seq) { pdbgpriv->dbg_rx_ampdu_loss_count+= (4096 + current_seq - prev_seq); } else { pdbgpriv->dbg_rx_ampdu_loss_count+= (current_seq - prev_seq); } } int recv_indicatepkts_in_order(_adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced); int recv_indicatepkts_in_order(_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; struct dvobj_priv *psdpriv = padapter->dvobj; struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; //DbgPrint("+recv_indicatepkts_in_order\n"); //_enter_critical_ex(&ppending_recvframe_queue->lock, &irql); //_rtw_spinlock_ex(&ppending_recvframe_queue->lock); phead = get_list_head(ppending_recvframe_queue); plist = get_next(phead); #if 0 // Check if there is any other indication thread running. if(pTS->RxIndicateState == RXTS_INDICATE_PROCESSING) return; #endif // Handling some condition for forced indicate case. if(bforced==_TRUE) { pdbgpriv->dbg_rx_ampdu_forced_indicate_count++; if(rtw_is_list_empty(phead)) { // _exit_critical_ex(&ppending_recvframe_queue->lock, &irql); //_rtw_spinunlock_ex(&ppending_recvframe_queue->lock); return _TRUE; } prframe = LIST_CONTAINOR(plist, union recv_frame, u); pattrib = &prframe->u.hdr.attrib; #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 recv_indicatepkts_pkt_loss_cnt(pdbgpriv,preorder_ctrl->indicate_seq,pattrib->seq_num); preorder_ctrl->indicate_seq = pattrib->seq_num; } // 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)); #if 0 // This protect buffer from overflow. if(index >= REORDER_WIN_SIZE) { RT_ASSERT(FALSE, ("IndicateRxReorderList(): Buffer overflow!! \n")); bPktInBuf = TRUE; break; } #endif 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 } #if 0 index++; if(index==1) { //Cancel previous pending timer. //PlatformCancelTimer(Adapter, &pTS->RxPktPendingTimer); if(bforced!=_TRUE) { //DBG_871X("_cancel_timer(&preorder_ctrl->reordering_ctrl_timer, &bcancelled);\n"); _cancel_timer(&preorder_ctrl->reordering_ctrl_timer, &bcancelled); } } #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; } //DbgPrint("recv_indicatepkts_in_order():while\n"); } //_rtw_spinunlock_ex(&ppending_recvframe_queue->lock); //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); /* //Release the indication lock and set to new indication step. if(bPktInBuf) { // Set new pending timer. //pTS->RxIndicateState = RXTS_INDICATE_REORDER; //PlatformSetTimer(Adapter, &pTS->RxPktPendingTimer, pHTInfo->RxReorderPendingTime); //DBG_871X("_set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME)\n"); _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); } else { //pTS->RxIndicateState = RXTS_INDICATE_IDLE; } */ //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); //return _TRUE; return bPktInBuf; } int recv_indicatepkt_reorder(_adapter *padapter, union recv_frame *prframe); int recv_indicatepkt_reorder(_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; struct dvobj_priv *psdpriv = padapter->dvobj; struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; if(!pattrib->amsdu) { //s1. wlanhdr_to_ethhdr(prframe); //if ((pattrib->qos!=1) /*|| pattrib->priority!=0 || IS_MCAST(pattrib->ra)*/ // || (pattrib->eth_type==0x0806) || (pattrib->ack_policy!=0)) 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; } #ifndef CONFIG_RECV_REORDERING_CTRL //indicate this recv_frame rtw_recv_indicatepkt(padapter, prframe); return _SUCCESS; #endif } 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; } } else { } _enter_critical_bh(&ppending_recvframe_queue->lock, &irql); 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)) { pdbgpriv->dbg_rx_ampdu_drop_count++; //pHTInfo->RxReorderDropCounter++; //ReturnRFDList(Adapter, pRfd); //RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("RxReorderIndicatePacket() ==> Packet Drop!!\n")); //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); //return _FAIL; #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __FUNCTION__); #endif #if 0 rtw_recv_indicatepkt(padapter, prframe); _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); goto _success_exit; #else goto _err_exit; #endif } //s3. Insert all packet into Reorder Queue to maintain its ordering. if(!enqueue_reorder_recvframe(preorder_ctrl, prframe)) { //DbgPrint("recv_indicatepkt_reorder, enqueue_reorder_recvframe fail!\n"); //_exit_critical_ex(&ppending_recvframe_queue->lock, &irql); //return _FAIL; #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. // //recv_indicatepkts_in_order(padapter, preorder_ctrl, _TRUE); if(recv_indicatepkts_in_order(padapter, preorder_ctrl, _FALSE)==_TRUE) { _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); } else { _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer); } _success_exit: return _SUCCESS; _err_exit: _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); return _FAIL; } void rtw_reordering_ctrl_timeout_handler(void *pcontext) { _irqL irql; struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)pcontext; _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"); _enter_critical_bh(&ppending_recvframe_queue->lock, &irql); if(recv_indicatepkts_in_order(padapter, preorder_ctrl, _TRUE)==_TRUE) { _set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME); } _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); } int process_recv_indicatepkts(_adapter *padapter, union recv_frame *prframe); int process_recv_indicatepkts(_adapter *padapter, union recv_frame *prframe) { int retval = _SUCCESS; //struct recv_priv *precvpriv = &padapter->recvpriv; //struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; #ifdef CONFIG_TDLS struct sta_info *psta = prframe->u.hdr.psta; #endif //CONFIG_TDLS #ifdef CONFIG_80211N_HT struct ht_priv *phtpriv = &pmlmepriv->htpriv; #ifdef CONFIG_TDLS if( (phtpriv->ht_option==_TRUE) || ((psta->tdls_sta_state & TDLS_LINKED_STATE) && (psta->htpriv.ht_option==_TRUE) && (psta->htpriv.ampdu_enable==_TRUE))) //B/G/N Mode #else if(phtpriv->ht_option==_TRUE) //B/G/N Mode #endif //CONFIG_TDLS { //prframe->u.hdr.preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; 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 #endif { 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; } #ifdef CONFIG_MP_INCLUDED int validate_mp_recv_frame(_adapter *adapter, union recv_frame *precv_frame) { int ret = _SUCCESS; u8 *ptr = precv_frame->u.hdr.rx_data; u8 type,subtype; if(!adapter->mppriv.bmac_filter) return ret; #if 0 if (1){ u8 bDumpRxPkt; type = GetFrameType(ptr); subtype = GetFrameSubType(ptr); //bit(7)~bit(2) rtw_hal_get_def_var(adapter, HAL_DEF_DBG_DUMP_RXPKT, &(bDumpRxPkt)); if(bDumpRxPkt ==1){//dump all rx packets int i; DBG_871X("############ type:0x%02x subtype:0x%02x ################# \n",type,subtype); 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"); } } #endif if(_rtw_memcmp( GetAddr2Ptr(ptr), adapter->mppriv.mac_filter, ETH_ALEN) == _FALSE ) ret = _FAIL; return ret; } #endif int recv_func_prehandle(_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; #ifdef CONFIG_MP_INCLUDED struct mlme_priv *pmlmepriv = &padapter->mlmepriv; if (padapter->registrypriv.mp_mode == 1) { if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == _TRUE))//&&(padapter->mppriv.check_mp_pkt == 0)) { if (pattrib->crc_err == 1){ padapter->mppriv.rx_crcerrpktcount++; } else{ if(_SUCCESS == validate_mp_recv_frame(padapter, rframe)) padapter->mppriv.rx_pktcount++; else padapter->mppriv.rx_pktcount_filter_out++; } if (check_fwstate(pmlmepriv, WIFI_MP_LPBK_STATE) == _FALSE) { //RT_TRACE(_module_rtl871x_recv_c_, _drv_alert_, ("MP - Not in loopback mode , drop pkt \n")); ret = _FAIL; rtw_free_recvframe(rframe, pfree_recv_queue);//free this recv_frame goto exit; } } } #endif //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; } int recv_func_posthandle(_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; #ifdef CONFIG_TDLS u8 *psnap_type, *pcategory; #endif //CONFIG_TDLS // 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; } #if 0 if ( padapter->adapter_type == PRIMARY_ADAPTER ) { DBG_871X("+++\n"); { int i; u8 *ptr = get_recvframe_data(prframe); for(i=0; i<140;i=i+8) DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:", *(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"); } #endif #ifdef CONFIG_TDLS //check TDLS frame psnap_type = get_recvframe_data(orig_prframe) + pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE; pcategory = psnap_type + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN; if((_rtw_memcmp(psnap_type, SNAP_ETH_TYPE_TDLS, ETH_TYPE_LEN)) && ((*pcategory==RTW_WLAN_CATEGORY_TDLS) || (*pcategory==RTW_WLAN_CATEGORY_P2P))){ ret = OnTDLS(padapter, prframe); //all of functions will return _FAIL if(ret == _FAIL) goto _exit_recv_func; //goto _exit_recv_func; } #endif //CONFIG_TDLS 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); #ifdef CONFIG_WAPI_SUPPORT rtw_wapi_update_info(padapter, prframe); #endif #ifdef CONFIG_80211N_HT 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; } #else // CONFIG_80211N_HT if (!pattrib->amsdu) { ret = wlanhdr_to_ethhdr (prframe); if (ret != _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: drop pkt\n", __FUNCTION__); #endif rtw_free_recvframe(orig_prframe, pfree_recv_queue);//free this recv_frame goto _recv_data_drop; } if ((padapter->bDriverStopped == _FALSE) && (padapter->bSurpriseRemoved == _FALSE)) { RT_TRACE(_module_rtl871x_recv_c_, _drv_alert_, ("@@@@ recv_func: recv_func rtw_recv_indicatepkt\n" )); //indicate this recv_frame ret = rtw_recv_indicatepkt(padapter, prframe); if (ret != _SUCCESS) { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s rtw_recv_indicatepkt fail!\n", __FUNCTION__); #endif goto _recv_data_drop; } } else { RT_TRACE(_module_rtl871x_recv_c_, _drv_alert_, ("@@@@ recv_func: rtw_free_recvframe\n" )); RT_TRACE(_module_rtl871x_recv_c_, _drv_debug_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved)); #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s ecv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", __FUNCTION__, padapter->bDriverStopped, padapter->bSurpriseRemoved); #endif ret = _FAIL; rtw_free_recvframe(orig_prframe, pfree_recv_queue); //free this recv_frame } } else if(pattrib->amsdu==1) { ret = amsdu_to_msdu(padapter, prframe); if(ret != _SUCCESS) { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __FUNCTION__); #endif rtw_free_recvframe(orig_prframe, pfree_recv_queue); goto _recv_data_drop; } } else { #ifdef DBG_RX_DROP_FRAME DBG_871X("DBG_RX_DROP_FRAME %s what is this condition??\n", __FUNCTION__); #endif goto _recv_data_drop; } #endif // CONFIG_80211N_HT _exit_recv_func: return ret; _recv_data_drop: precvpriv->rx_drop++; return ret; } int recv_func(_adapter *padapter, union recv_frame *rframe); int recv_func(_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) { _adapter *padapter; struct recv_priv *precvpriv; s32 ret=_SUCCESS; _func_enter_; // 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++; _func_exit_; return ret; _recv_entry_drop: #ifdef CONFIG_MP_INCLUDED if (padapter->registrypriv.mp_mode == 1) padapter->mppriv.rx_pktloss = precvpriv->rx_drop; #endif //RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("_recv_entry_drop\n")); _func_exit_; return ret; } #ifdef CONFIG_NEW_SIGNAL_STAT_PROCESS void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS){ _adapter *adapter = (_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 = 5; // 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 ) { goto set_timer; } } if(check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == _TRUE || check_fwstate(&adapter->mlmepriv, _FW_LINKED) == _FALSE ) { goto set_timer; } #ifdef CONFIG_CONCURRENT_MODE if (check_buddy_fwstate(adapter, _FW_UNDER_SURVEY) == _TRUE) goto set_timer; #endif //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); } #endif //CONFIG_NEW_SIGNAL_STAT_PROCESS