/****************************************************************************** * * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #define _RTW_RECV_C_ #include #include #include #include #include #include #include #include #include #include #include #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); _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_; _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; } precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ); 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 #ifdef PLATFORM_LINUX _init_timer(&precvpriv->signal_stat_timer, padapter->pnetdev, RTW_TIMER_HDL_NAME(signal_stat), padapter); #elif defined(PLATFORM_OS_CE) || defined(PLATFORM_WINDOWS) _init_timer(&precvpriv->signal_stat_timer, padapter->hndis_adapter, RTW_TIMER_HDL_NAME(signal_stat), padapter); #endif precvpriv->signal_stat_sampling_interval = 1000; /* 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 #ifdef PLATFORM_WINDOWS rtw_os_read_port(padapter, precvframe->u.hdr.precvbuf); #endif #if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) if (precvframe->u.hdr.pkt) { #ifdef CONFIG_BSD_RX_USE_MBUF m_freem(precvframe->u.hdr.pkt); #else /* CONFIG_BSD_RX_USE_MBUF */ dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */ #endif /* CONFIG_BSD_RX_USE_MBUF */ precvframe->u.hdr.pkt = NULL; } #endif /* defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) */ _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; _enter_critical_bh(&queue->lock, &irqL); ret = _rtw_enqueue_recvframe(precvframe, queue); _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_; spin_lock(&pframequeue->lock); phead = get_list_head(pframequeue); plist = get_next(phead); while (rtw_end_of_queue_search(phead, plist) == false) { precvframe = LIST_CONTAINOR(plist, union recv_frame, u); plist = get_next(plist); rtw_free_recvframe(precvframe, pfree_recv_queue); } spin_unlock(&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); DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__); 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; 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[prxattrib->key_index].skey[0]; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n recvframe_chkmic: bcmc key\n")); if (psecuritypriv->binstallGrpkey==false) { res=_FAIL; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n")); DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"); goto exit; } } else{ mickey=&stainfo->dot11tkiprxmickey.skey[0]; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n recvframe_chkmic: unicast key\n")); } datalen=precvframe->u.hdr.len-prxattrib->hdrlen-prxattrib->iv_len-prxattrib->icv_len-8;/* icv_len included the mic code */ pframe=precvframe->u.hdr.rx_data; payload=pframe+prxattrib->hdrlen+prxattrib->iv_len; RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n",prxattrib->iv_len,prxattrib->icv_len)); rtw_seccalctkipmic(mickey,pframe,payload, datalen ,&miccode[0],(unsigned char)prxattrib->priority); /* care the length of the data */ pframemic=payload+datalen; bmic_err=false; for (i=0;i<8;i++){ if (miccode[i] != *(pframemic+i)){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x) ",i,miccode[i],i,*(pframemic+i))); bmic_err=true; } } if (bmic_err==true){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n *(pframemic-8)-*(pframemic-1)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", *(pframemic-8),*(pframemic-7),*(pframemic-6),*(pframemic-5),*(pframemic-4),*(pframemic-3),*(pframemic-2),*(pframemic-1))); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n *(pframemic-16)-*(pframemic-9)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n", *(pframemic-16),*(pframemic-15),*(pframemic-14),*(pframemic-13),*(pframemic-12),*(pframemic-11),*(pframemic-10),*(pframemic-9))); { uint i; RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n ======demp packet (len=%d)======\n",precvframe->u.hdr.len)); for (i=0;iu.hdr.len;i=i+8){ RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x", *(precvframe->u.hdr.rx_data+i),*(precvframe->u.hdr.rx_data+i+1), *(precvframe->u.hdr.rx_data+i+2),*(precvframe->u.hdr.rx_data+i+3), *(precvframe->u.hdr.rx_data+i+4),*(precvframe->u.hdr.rx_data+i+5), *(precvframe->u.hdr.rx_data+i+6),*(precvframe->u.hdr.rx_data+i+7))); } RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n ======demp packet end [len=%d]======\n",precvframe->u.hdr.len)); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("\n hrdlen=%d,\n",prxattrib->hdrlen)); } RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("ra=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey=%d ", prxattrib->ra[0],prxattrib->ra[1],prxattrib->ra[2], prxattrib->ra[3],prxattrib->ra[4],prxattrib->ra[5],psecuritypriv->binstallGrpkey)); /* double check key_index for some timing issue , */ /* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */ if ((IS_MCAST(prxattrib->ra)==true) && (prxattrib->key_index != pmlmeinfo->key_index )) brpt_micerror = false; if ((prxattrib->bdecrypted ==true)&& (brpt_micerror == true)) { rtw_handle_tkip_mic_err(adapter,(u8)IS_MCAST(prxattrib->ra)); RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,(" mic error :prxattrib->bdecrypted=%d ",prxattrib->bdecrypted)); DBG_88E(" 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_88E(" 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_88E("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_88E("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif switch (prxattrib->encrypt){ case _WEP40_: case _WEP104_: rtw_wep_decrypt(padapter, (u8 *)precv_frame); break; case _TKIP_: res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame); break; case _AES_: res = rtw_aes_decrypt(padapter, (u8 * )precv_frame); break; #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_ ) ) { psecuritypriv->hw_decrypted=true; #ifdef DBG_RX_DECRYPTOR DBG_88E("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, Setting psecuritypriv->hw_decrypted = %d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif } else { #ifdef DBG_RX_DECRYPTOR DBG_88E("prxstat->bdecrypted:%d, prxattrib->encrypt:%d, psecuritypriv->hw_decrypted:%d\n" , prxattrib->bdecrypted ,prxattrib->encrypt, psecuritypriv->hw_decrypted); #endif } if (res == _FAIL) { rtw_free_recvframe(return_packet,&padapter->recvpriv.free_recv_queue); return_packet = NULL; } _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, *ptr; uint auth_alg; struct recv_frame_hdr *pfhdr; struct sta_info *psta; struct sta_priv *pstapriv ; union recv_frame *prtnframe; u16 ether_type=0; u16 eapol_type = 0x888e;/* for Funia BD's WPA issue */ struct rx_pkt_attrib *pattrib; __be16 be_tmp; _func_enter_; pstapriv = &adapter->stapriv; psta = rtw_get_stainfo(pstapriv, psta_addr); 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; 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(&be_tmp, ptr, 2); ether_type= ntohs(be_tmp); if (ether_type == eapol_type) { prtnframe=precv_frame; } else { /* free this frame */ rtw_free_recvframe(precv_frame, &adapter->recvpriv.free_recv_queue); prtnframe=NULL; } } else { /* allowed */ /* check decryption status, and decrypt the frame if needed */ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:psta->ieee8021x_blocked==0\n")); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("portctrl:precv_frame->hdr.attrib.privacy=%x\n",precv_frame->u.hdr.attrib.privacy)); if (pattrib->bdecrypted == 0) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("portctrl:prxstat->decrypted=%x\n", pattrib->bdecrypted)); } prtnframe=precv_frame; /* check is the EAPOL frame or not (Rekey) */ if (ether_type == eapol_type){ RT_TRACE(_module_rtl871x_recv_c_,_drv_notice_,("########portctrl:ether_type == 0x888e\n")); /* check Rekey */ prtnframe=precv_frame; } else{ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("########portctrl:ether_type=0x%04x\n", ether_type)); } } } else { prtnframe=precv_frame; } _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_88E("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_88E("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->enable == 0) { DBG_88E("recv tdls frame, " "but tdls haven't enabled\n"); ret = _FAIL; return ret; } switch (*paction){ case TDLS_SETUP_REQUEST: DBG_88E("recv tdls setup request frame\n"); ret=On_TDLS_Setup_Req(adapter, precv_frame); break; case TDLS_SETUP_RESPONSE: DBG_88E("recv tdls setup response frame\n"); ret=On_TDLS_Setup_Rsp(adapter, precv_frame); break; case TDLS_SETUP_CONFIRM: DBG_88E("recv tdls setup confirm frame\n"); ret=On_TDLS_Setup_Cfm(adapter, precv_frame); break; case TDLS_TEARDOWN: DBG_88E("recv tdls teardown, free sta_info\n"); ret=On_TDLS_Teardown(adapter, precv_frame); break; case TDLS_DISCOVERY_REQUEST: DBG_88E("recv tdls discovery request frame\n"); ret=On_TDLS_Dis_Req(adapter, precv_frame); break; case TDLS_PEER_TRAFFIC_RESPONSE: DBG_88E("recv tdls peer traffic response frame\n"); ret=On_TDLS_Peer_Traffic_Rsp(adapter, precv_frame); break; case TDLS_CHANNEL_SWITCH_REQUEST: DBG_88E("recv tdls channel switch request frame\n"); ret=On_TDLS_Ch_Switch_Req(adapter, precv_frame); break; case TDLS_CHANNEL_SWITCH_RESPONSE: DBG_88E("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_88E("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_88E("recv tunneled probe response frame\n"); } } break; #endif /* CONFIG_WFD */ default: DBG_88E("receive TDLS frame but not supported\n"); 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; } } 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_; 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->setup_state == TDLS_LINKED_STATE){ 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) { /* drop QoS-SubType Data, including QoS NULL, excluding QoS-Data */ if ( (GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE )== WIFI_QOS_DATA_TYPE) { if (GetFrameSubType(ptr)&(BIT(4)|BIT(5)|BIT(6))) { DBG_88E("drop QoS-Sybtype Data\n"); ret= _FAIL; goto exit; } } /* 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) { /* NULL-frame with pwrbit=1, buffer_STA should buffer frames for sleep_STA */ if (GetPwrMgt(ptr)) { DBG_88E("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, 0); ptdls_sta->tdls_sta_state |= TDLS_PEER_AT_OFF_STATE; On_TDLS_Peer_Traffic_Rsp(adapter, precv_frame); } } 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; } } 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_88E("DBG_RX_DROP_FRAME %s SA=%pM, myhwaddr=%pM\n", __func__, (pattrib->src), (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=%pM\n", (pattrib->dst))); #ifdef DBG_RX_DROP_FRAME DBG_88E("DBG_RX_DROP_FRAME %s DA=%pM\n", __func__, (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=%pM\n", (pattrib->bssid))); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("mybssid=%pM\n", (mybssid))); #ifdef DBG_RX_DROP_FRAME DBG_88E("DBG_RX_DROP_FRAME %s BSSID=%pM, mybssid=%pM\n", __func__, (pattrib->bssid), (mybssid)); DBG_88E( "this adapter = %d, buddy adapter = %d\n", adapter->adapter_type, adapter->pbuddy_adapter->adapter_type ); #endif if (!bmcast) { DBG_88E("issue_deauth to the nonassociated ap=%pM for the reason(7)\n", (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_88E("DBG_RX_DROP_FRAME %s can't get psta under STATION_MODE ; drop pkt\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s can't get psta under WIFI_MP_STATE ; drop pkt\n", __func__); #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_88E("issue_deauth to the ap=%pM for the reason(7)\n", (pattrib->bssid)); issue_deauth(adapter, pattrib->bssid, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); } } ret = _FAIL; #ifdef DBG_RX_DROP_FRAME DBG_88E("DBG_RX_DROP_FRAME %s fw_state:0x%x\n", __func__, 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_88E("issue_deauth to sta=%pM for the reason(7)\n", (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_88E("issue_deauth to sta=%pM for the reason(7)\n", (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) { #ifdef CONFIG_AP_MODE struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib; struct sta_priv *pstapriv = &padapter->stapriv; u8 *pframe = precv_frame->u.hdr.rx_data; /* uint len = precv_frame->u.hdr.len; */ /* DBG_88E("+validate_recv_ctrl_frame\n"); */ if (GetFrameType(pframe) != WIFI_CTRL_TYPE) { return _FAIL; } /* receive the frames that ra(a1) is my address */ if (!_rtw_memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN)) { return _FAIL; } /* only handle ps-poll */ if (GetFrameSubType(pframe) == WIFI_PSPOLL) { u16 aid; u8 wmmps_ac=0; struct sta_info *psta=NULL; aid = GetAid(pframe); psta = rtw_get_stainfo(pstapriv, GetAddr2Ptr(pframe)); if ((psta==NULL) || (psta->aid!=aid)) { return _FAIL; } /* for rx pkt statistics */ psta->sta_stats.rx_ctrl_pkts++; switch (pattrib->priority) { case 1: case 2: wmmps_ac = psta->uapsd_bk&BIT(0); break; case 4: case 5: wmmps_ac = psta->uapsd_vi&BIT(0); break; case 6: case 7: wmmps_ac = psta->uapsd_vo&BIT(0); break; case 0: case 3: default: wmmps_ac = psta->uapsd_be&BIT(0); break; } if (wmmps_ac) return _FAIL; if (psta->state & WIFI_STA_ALIVE_CHK_STATE) { DBG_88E("%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; _enter_critical_bh(&psta->sleep_q.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_88E("handling ps-poll, q_len=%d, tim=%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */ _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); if (psta->sleepq_len==0) { pstapriv->tim_bitmap &= ~BIT(psta->aid); /* DBG_88E("after handling ps-poll, tim=%x\n", pstapriv->tim_bitmap); */ /* upate BCN for TIM IE */ /* update_BCNTIM(padapter); */ update_beacon(padapter, _TIM_IE_, NULL, false); } } else { /* DBG_88E("no buffered packets to xmit\n"); */ if (pstapriv->tim_bitmap&BIT(psta->aid)) { if (psta->sleepq_len==0) { DBG_88E("no buffered packets to xmit\n"); /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */ issue_nulldata(padapter, psta->hwaddr, 0, 0, 0); } else { DBG_88E("error!psta->sleepq_len=%d\n", psta->sleepq_len); psta->sleepq_len=0; } pstapriv->tim_bitmap &= ~BIT(psta->aid); /* upate BCN for TIM IE */ /* update_BCNTIM(padapter); */ update_beacon(padapter, _TIM_IE_, NULL, false); } } _exit_critical_bh(&psta->sleep_q.lock, &irqL); } } #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")); precv_frame = recvframe_chk_defrag(padapter, precv_frame); if (precv_frame == NULL) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,("%s: fragment packet\n",__func__)); 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; #ifdef CONFIG_TDLS struct tdls_info *ptdlsinfo = &adapter->tdlsinfo; #endif /* CONFIG_TDLS */ _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_88E("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_88E("DBG_RX_DROP_FRAME %s case:%d, res:%d\n", __func__, 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_88E("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_88E("DBG_RX_DROP_FRAME %s recv_decache return _FAIL\n", __func__); #endif ret= _FAIL; goto exit; } if (pattrib->privacy){ RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("validate_recv_data_frame:pattrib->privacy=%x\n", pattrib->privacy)); RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n ^^^^^^^^^^^IS_MCAST(pattrib->ra(0x%02x))=%d^^^^^^^^^^^^^^^6\n", pattrib->ra[0],IS_MCAST(pattrib->ra))); #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; } 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_88E("++\n"); { int i; for (i=0; i<64;i=i+8) DBG_88E("%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_88E("--\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_88E("#############################\n"); for (i=0; i<64;i=i+8) DBG_88E("%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_88E("#############################\n"); } else if (bDumpRxPkt ==2){ if (type== WIFI_MGT_TYPE){ int i; DBG_88E("#############################\n"); for (i=0; i<64;i=i+8) DBG_88E("%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_88E("#############################\n"); } } else if (bDumpRxPkt ==3){ if (type== WIFI_DATA_TYPE){ int i; DBG_88E("#############################\n"); for (i=0; i<64;i=i+8) DBG_88E("%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_88E("#############################\n"); } } } #endif switch (type) { case WIFI_MGT_TYPE: /* mgnt */ 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 rtw_led_control(adapter, LED_CTL_RX); pattrib->qos = (subtype & BIT(7))? 1:0; retval = validate_recv_data_frame(adapter, precv_frame); if (retval == _FAIL) { struct recv_priv *precvpriv = &adapter->recvpriv; /* RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_data_frame fail\n")); */ precvpriv->rx_drop++; } break; default: RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("validate_recv_data_frame fail! type=0x%x\n", type)); #ifdef DBG_RX_DROP_FRAME DBG_88E("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; __be16 be_tmp; 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(&be_tmp, ptr+rmv_len, 2); eth_type = ntohs(be_tmp); /* pattrib->ether_type */ pattrib->eth_type = eth_type; if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) { ptr += rmv_len ; *ptr = 0x87; *(ptr+1) = 0x12; eth_type = 0x8712; /* append rx status for mp test packets */ ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24); _rtw_memcpy(ptr, get_rxmem(precvframe), 24); ptr+=24; } else { ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+ (bsnaphdr?2:0))); } _rtw_memcpy(ptr, pattrib->dst, ETH_ALEN); _rtw_memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN); if (!bsnaphdr) { be_tmp = htons(len); _rtw_memcpy(ptr+12, &be_tmp, 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; __be16 be_tmp; 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(&be_tmp, ptr, 2); eth_type= ntohs(be_tmp); /* pattrib->ether_type */ ptr +=2; if (pattrib->encrypt){ recvframe_pull_tail(precvframe, pattrib->icv_len); } if (eth_type == 0x8100) /* vlan */ { pvlan = (struct _vlan *) ptr; 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 */ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) /* www.mail-archive.com/netdev@vger.kernel.org/msg17214.html */ ppkt = dev_alloc_skb(alloc_sz); if (ppkt) ppkt->dev = padapter->pnetdev; #else ppkt = netdev_alloc_skb(padapter->pnetdev, alloc_sz); #endif 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); dev_kfree_skb_any(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 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); 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 */ phead = get_list_head(pdefrag_q); rtw_list_insert_tail(&pfhdr->list, phead); 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) { phead = get_list_head(pdefrag_q); rtw_list_insert_tail(&pfhdr->list,phead); /* 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; } static int amsdu_to_msdu(_adapter *padapter, union recv_frame *prframe) { #if defined (PLATFORM_LINUX) || defined (PLATFORM_FREEBSD) /* for amsdu TP improvement,Creator: Thomas */ int a_len, padding_len; u16 eth_type, nSubframe_Length; u8 nr_subframes, i; unsigned char *pdata; struct rx_pkt_attrib *pattrib; #ifndef PLATFORM_FREEBSD unsigned char *data_ptr; _pkt *sub_skb,*subframes[MAX_SUBFRAME_COUNT]; #endif /* PLATFORM_FREEBSD */ struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &(precvpriv->free_recv_queue); int ret = _SUCCESS; #ifdef PLATFORM_FREEBSD struct mbuf *sub_m=NULL, *subframes[MAX_SUBFRAME_COUNT]; u8 *ptr,offset; #endif /* PLATFORM_FREEBSD */ nr_subframes = 0; pattrib = &prframe->u.hdr.attrib; recvframe_pull(prframe, prframe->u.hdr.attrib.hdrlen); if (prframe->u.hdr.attrib.iv_len >0) { recvframe_pull(prframe, prframe->u.hdr.attrib.iv_len); } a_len = prframe->u.hdr.len; pdata = prframe->u.hdr.rx_data; while (a_len > ETH_HLEN) { /* Offset 12 denote 2 mac address */ nSubframe_Length = RTW_GET_BE16(pdata + 12); if ( a_len < (ETHERNET_HEADER_SIZE + nSubframe_Length) ) { DBG_88E("nRemain_Length is %d and nSubframe_Length is : %d\n",a_len,nSubframe_Length); goto exit; } #ifndef PLATFORM_FREEBSD /* move the data point to data content */ pdata += ETH_HLEN; a_len -= ETH_HLEN; /* Allocate new skb for releasing to upper layer */ #ifdef CONFIG_SKB_COPY sub_skb = dev_alloc_skb(nSubframe_Length + 12); if (sub_skb) { skb_reserve(sub_skb, 12); data_ptr = (u8 *)skb_put(sub_skb, nSubframe_Length); _rtw_memcpy(data_ptr, pdata, nSubframe_Length); } else #endif /* CONFIG_SKB_COPY */ { sub_skb = skb_clone(prframe->u.hdr.pkt, GFP_ATOMIC); if (sub_skb) { sub_skb->data = pdata; sub_skb->len = nSubframe_Length; skb_set_tail_pointer(sub_skb, nSubframe_Length); } else { DBG_88E("skb_clone() Fail!!! , nr_subframes = %d\n",nr_subframes); break; } } #else /* PLATFORM_FREEBSD */ /* PLATFORM_FREEBSD */ /* Allocate a mbuff, */ /* sub_m =m_devget(pdata, nSubframe_Length+12, 12, padapter->pifp,NULL); */ sub_m =m_devget(pdata, nSubframe_Length+ETH_HLEN, ETHER_ALIGN, padapter->pifp,NULL); pdata += ETH_HLEN; a_len -= ETH_HLEN; #endif /* PLATFORM_FREEBSD */ #ifndef PLATFORM_FREEBSD /* sub_skb->dev = padapter->pnetdev; */ subframes[nr_subframes++] = sub_skb; #else /* PLATFORM_FREEBSD */ /* PLATFORM_FREEBSD */ subframes[nr_subframes++] = sub_m; #endif /* PLATFORM_FREEBSD */ if (nr_subframes >= MAX_SUBFRAME_COUNT) { DBG_88E("ParseSubframe(): Too many Subframes! Packets dropped!\n"); break; } pdata += nSubframe_Length; a_len -= nSubframe_Length; if (a_len != 0) { padding_len = 4 - ((nSubframe_Length + ETH_HLEN) & (4-1)); if (padding_len == 4) { padding_len = 0; } if (a_len < padding_len) { goto exit; } pdata += padding_len; a_len -= padding_len; } } for (i=0; idata[6]); if (sub_skb->len >= 8 && ((_rtw_memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) && eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || _rtw_memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE) )) { /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ skb_pull(sub_skb, SNAP_SIZE); _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); } else { __be16 len; /* Leave Ethernet header part of hdr and full payload */ len = htons(sub_skb->len); _rtw_memcpy(skb_push(sub_skb, 2), &len, 2); _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN); _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN); } /* Indicat the packets to upper layer */ if (sub_skb) { /* memset(sub_skb->cb, 0, sizeof(sub_skb->cb)); */ #ifdef CONFIG_BR_EXT /* Insert NAT2.5 RX here! */ struct mlme_priv *pmlmepriv = &padapter->mlmepriv; #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) rcu_read_lock(); rcu_read_unlock(); #endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) */ #endif /* CONFIG_BR_EXT */ sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev); sub_skb->dev = padapter->pnetdev; #ifdef CONFIG_TCP_CSUM_OFFLOAD_RX if ( (pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1) ) { sub_skb->ip_summed = CHECKSUM_UNNECESSARY; } else { sub_skb->ip_summed = CHECKSUM_NONE; } #else /* !CONFIG_TCP_CSUM_OFFLOAD_RX */ sub_skb->ip_summed = CHECKSUM_NONE; #endif /* CONFIG_TCP_CSUM_OFFLOAD_RX */ netif_rx(sub_skb); } #else /* PLATFORM_FREEBSD */ /* PLATFORM_FREEBSD */ sub_m = subframes[i]; ptr=mtod(sub_m, u8 *); offset=ETH_HLEN; /* convert hdr + possible LLC headers into Ethernet header */ eth_type = ntohs(*(u16*)&ptr[offset+6]); if (sub_m->m_pkthdr.len >= ETH_HLEN+8 && ((_rtw_memcmp(ptr+ETH_HLEN, rtw_rfc1042_header, SNAP_SIZE) && eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || _rtw_memcmp(ptr+ETH_HLEN, rtw_bridge_tunnel_header, SNAP_SIZE) )) { /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */ offset+=SNAP_SIZE; _rtw_memcpy(&ptr[offset-ETH_ALEN], pattrib->src, ETH_ALEN); offset-=ETH_ALEN; _rtw_memcpy(&ptr[offset-ETH_ALEN], pattrib->dst, ETH_ALEN); offset-=ETH_ALEN; } else { u16 len; /* Leave Ethernet header part of hdr and full payload */ len = htons(sub_m->m_pkthdr.len-offset); _rtw_memcpy(&ptr[offset- 2], &len, 2); offset-=2; _rtw_memcpy(&ptr[offset-ETH_ALEN], pattrib->src, ETH_ALEN); offset-=ETH_ALEN; _rtw_memcpy(&ptr[offset-ETH_ALEN], pattrib->dst, ETH_ALEN); offset-=ETH_ALEN; } m_adj(sub_m,offset); /* Indicat the packets to upper layer */ if (sub_m) { if ( ((u32)(mtod(sub_m, caddr_t) + 14) % 4) != 0) printf("%s()-%d: mtod(sub_m) = %p\n", __func__, __LINE__, mtod(sub_m, caddr_t)); #ifdef CONFIG_RX_INDICATE_QUEUE IF_ENQUEUE(&precvpriv->rx_indicate_queue, sub_m); if (_IF_QLEN(&precvpriv->rx_indicate_queue) <= 1) { taskqueue_enqueue(taskqueue_thread, &precvpriv->rx_indicate_tasklet); } #else /* CONFIG_RX_INDICATE_QUEUE */ (*padapter->pifp->if_input)(padapter->pifp, sub_m); #endif /* CONFIG_RX_INDICATE_QUEUE */ } #endif /* PLATFORM_FREEBSD */ } exit: prframe->u.hdr.len=0; rtw_free_recvframe(prframe, pfree_recv_queue);/* free this recv_frame */ return ret; #else /* || defined (PLATFORM_LINUX) || defined (PLATFORM_FREEBSD) */ #ifdef PLATFORM_WINDOWS _irqL irql; #endif /* PLATFORM_WINDOWS */ unsigned char *ptr, *pdata, *pbuf, *psnap_type; union recv_frame *pnrframe, *pnrframe_new; int a_len, mv_len, padding_len; u16 eth_type, type_len; u8 bsnaphdr; struct ieee80211_snap_hdr *psnap; struct _vlan *pvlan; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *pfree_recv_queue = &(precvpriv->free_recv_queue); int ret = _SUCCESS; #ifdef PLATFORM_WINDOWS struct recv_buf *precvbuf = prframe->u.hdr.precvbuf; #endif /* PLATFORM_WINDOWS */ a_len = prframe->u.hdr.len - prframe->u.hdr.attrib.hdrlen; 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); } pdata = prframe->u.hdr.rx_data; prframe->u.hdr.len=0; pnrframe = prframe; do{ mv_len=0; pnrframe->u.hdr.rx_data = pnrframe->u.hdr.rx_tail = pdata; ptr = pdata; _rtw_memcpy(pnrframe->u.hdr.attrib.dst, ptr, ETH_ALEN); ptr+=ETH_ALEN; _rtw_memcpy(pnrframe->u.hdr.attrib.src, ptr, ETH_ALEN); ptr+=ETH_ALEN; _rtw_memcpy(&type_len, ptr, 2); type_len= ntohs((unsigned short )type_len); ptr +=2; mv_len += ETH_HLEN; recvframe_put(pnrframe, type_len+ETH_HLEN);/* update tail; */ if (pnrframe->u.hdr.rx_data >= pnrframe->u.hdr.rx_tail || type_len<8) { /* panic("pnrframe->u.hdr.rx_data >= pnrframe->u.hdr.rx_tail || type_len<8\n"); */ rtw_free_recvframe(pnrframe, pfree_recv_queue); goto exit; } psnap=(struct ieee80211_snap_hdr *)(ptr); psnap_type=ptr+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")); /* KeBugCheckEx(0x87123333, 0xe0, 0x4c, 0x87, 0xdd); */ /* panic("0x87123333, 0xe0, 0x4c, 0x87, 0xdd\n"); */ rtw_free_recvframe(pnrframe, pfree_recv_queue); goto exit; } } else { bsnaphdr=false;/* wlan_pkt_format = WLAN_PKT_FORMAT_OTHERS; */ } ptr += (bsnaphdr?SNAP_SIZE:0); _rtw_memcpy(ð_type, ptr, 2); eth_type= ntohs((unsigned short )eth_type); /* pattrib->ether_type */ mv_len+= 2+(bsnaphdr?SNAP_SIZE:0); ptr += 2;/* now move to iphdr; */ pvlan = NULL; if (eth_type == 0x8100) /* vlan */ { pvlan = (struct _vlan *)ptr; ptr+=4; mv_len+=4; } if (eth_type==0x0800)/* ip */ { struct iphdr* piphdr = (struct iphdr*)ptr; if (piphdr->protocol == 0x06) { RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("@@@===recv tcp len:%d @@@===\n", pnrframe->u.hdr.len)); } } #ifdef PLATFORM_OS_XP else { NDIS_PACKET_8021Q_INFO VlanPriInfo; UINT32 UserPriority = pnrframe->u.hdr.attrib.priority; UINT32 VlanID = (pvlan!=NULL ? get_vlan_id(pvlan) : 0 ); VlanPriInfo.Value = /* Get current value. */ NDIS_PER_PACKET_INFO_FROM_PACKET(pnrframe->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(pnrframe->u.hdr.pkt, Ieee8021QInfo) = VlanPriInfo.Value; } #endif /* PLATFORM_OS_XP */ pbuf = recvframe_pull(pnrframe, (mv_len-sizeof(struct ethhdr))); _rtw_memcpy(pbuf, pnrframe->u.hdr.attrib.dst, ETH_ALEN); _rtw_memcpy(pbuf+ETH_ALEN, pnrframe->u.hdr.attrib.src, ETH_ALEN); eth_type = htons((unsigned short)eth_type) ; _rtw_memcpy(pbuf+12, ð_type, 2); padding_len = (4) - ((type_len + ETH_HLEN)&(4-1)); a_len -= (type_len + ETH_HLEN + padding_len) ; pnrframe_new = NULL; if (a_len > ETH_HLEN) { pnrframe_new = rtw_alloc_recvframe(pfree_recv_queue); if (pnrframe_new) { { #ifdef PLATFORM_LINUX _pkt *pskb = pnrframe->u.hdr.pkt; #endif /* PLATFORM_LINUX */ _rtw_init_listhead(&pnrframe_new->u.hdr.list); pnrframe_new->u.hdr.len=0; #ifdef PLATFORM_LINUX if (pskb) { pnrframe_new->u.hdr.pkt = skb_clone(pskb, GFP_ATOMIC); } #endif /* PLATFORM_LINUX */ } pdata += (type_len + ETH_HLEN + padding_len); pnrframe_new->u.hdr.rx_head = pnrframe_new->u.hdr.rx_data = pnrframe_new->u.hdr.rx_tail = pdata; pnrframe_new->u.hdr.rx_end = pdata + a_len + padding_len;/* */ #ifdef PLATFORM_WINDOWS pnrframe_new->u.hdr.precvbuf=precvbuf; _enter_critical_bh(&precvbuf->recvbuf_lock, &irql); precvbuf->ref_cnt++; _exit_critical_bh(&precvbuf->recvbuf_lock, &irql); #endif /* PLATFORM_WINDOWS */ } else { /* panic("pnrframe_new=%x\n", pnrframe_new); */ } } if ((padapter->bDriverStopped ==false)&&( padapter->bSurpriseRemoved==false) ) { rtw_recv_indicatepkt(padapter, pnrframe);/* indicate this recv_frame */ } else { rtw_free_recvframe(pnrframe, pfree_recv_queue);/* free this recv_frame */ } pnrframe = NULL; if (pnrframe_new) { pnrframe = pnrframe_new; } }while (pnrframe); exit: return ret; #endif } static int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) { u8 wsize = preorder_ctrl->wsize_b; u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF;/* 4096; */ /* Rx Reorder initialize condition. */ if (preorder_ctrl->indicate_seq == 0xFFFF) { preorder_ctrl->indicate_seq = seq_num; #ifdef DBG_RX_SEQ DBG_88E("DBG_RX_SEQ %s:%d init IndicateSeq: %d, NewSeq: %d\n", __func__, __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_88E("%s IndicateSeq: %d > NewSeq: %d\n", __func__, 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_88E("DBG_RX_SEQ %s:%d SN_EQUAL IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__, preorder_ctrl->indicate_seq, seq_num); #endif } else if (SN_LESS(wend, seq_num)) { /* RT_TRACE(COMP_RX_REORDER, DBG_LOUD, ("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, NewSeqNum)); */ /* DbgPrint("CheckRxTsIndicateSeq(): Window Shift! IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ /* boundary situation, when seq_num cross 0xFFF */ if (seq_num >= (wsize - 1)) preorder_ctrl->indicate_seq = seq_num + 1 -wsize; else preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1; #ifdef DBG_RX_SEQ DBG_88E("DBG_RX_SEQ %s:%d SN_LESS(wend, seq_num) IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__, preorder_ctrl->indicate_seq, seq_num); #endif } /* DbgPrint("exit->check_indicate_seq(): IndicateSeq: %d, NewSeq: %d\n", precvpriv->indicate_seq, seq_num); */ return true; } int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe); int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union recv_frame *prframe) { struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; _list *phead, *plist; union recv_frame *pnextrframe; struct rx_pkt_attrib *pnextattrib; phead = get_list_head(ppending_recvframe_queue); plist = get_next(phead); while (rtw_end_of_queue_search(phead, plist) == false) { pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u); pnextattrib = &pnextrframe->u.hdr.attrib; if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) plist = get_next(plist); else if ( SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) return false; else break; } rtw_list_delete(&(prframe->u.hdr.list)); rtw_list_insert_tail(&(prframe->u.hdr.list), plist); return true; } static int recv_indicatepkts_in_order(_adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced) { _list *phead, *plist; union recv_frame *prframe; struct rx_pkt_attrib *pattrib; int bPktInBuf = false; struct recv_priv *precvpriv = &padapter->recvpriv; _queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; phead = get_list_head(ppending_recvframe_queue); plist = get_next(phead); /* Handling some condition for forced indicate case. */ if (bforced==true) { if (rtw_is_list_empty(phead)) return true; prframe = LIST_CONTAINOR(plist, union recv_frame, u); pattrib = &prframe->u.hdr.attrib; preorder_ctrl->indicate_seq = pattrib->seq_num; #ifdef DBG_RX_SEQ DBG_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif } /* Prepare indication list and indication. */ /* Check if there is any packet need indicate. */ while (!rtw_is_list_empty(phead)) { prframe = LIST_CONTAINOR(plist, union recv_frame, u); pattrib = &prframe->u.hdr.attrib; if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_indicatepkts_in_order: indicate=%d seq=%d amsdu=%d\n", preorder_ctrl->indicate_seq, pattrib->seq_num, pattrib->amsdu)); plist = get_next(plist); rtw_list_delete(&(prframe->u.hdr.list)); if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num)) { preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF; #ifdef DBG_RX_SEQ DBG_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif } /* Set this as a lock to make sure that only one thread is indicating packet. */ /* indicate this recv_frame */ if (!pattrib->amsdu) { if ((padapter->bDriverStopped == false) && (padapter->bSurpriseRemoved == false)) { rtw_recv_indicatepkt(padapter, prframe);/* indicate this recv_frame */ } } else if (pattrib->amsdu==1) { if (amsdu_to_msdu(padapter, prframe)!=_SUCCESS) { rtw_free_recvframe(prframe, &precvpriv->free_recv_queue); } } else { /* error condition; */ } /* Update local variables. */ bPktInBuf = false; } else { bPktInBuf = true; break; } } return bPktInBuf; } 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; 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 ((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_88E("DBG_RX_DROP_FRAME %s pattrib->qos !=1\n", __func__); #endif return _FAIL; } if (preorder_ctrl->enable == false) { /* indicate this recv_frame */ preorder_ctrl->indicate_seq = pattrib->seq_num; #ifdef DBG_RX_SEQ DBG_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __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_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __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_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __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_88E("DBG_RX_SEQ %s:%d IndicateSeq: %d, NewSeq: %d\n", __func__, __LINE__, preorder_ctrl->indicate_seq, pattrib->seq_num); #endif if (retval != _SUCCESS){ #ifdef DBG_RX_DROP_FRAME DBG_88E("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __func__); #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)) { /* 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_88E("DBG_RX_DROP_FRAME %s check_indicate_seq fail\n", __func__); #endif rtw_recv_indicatepkt(padapter, prframe); _exit_critical_bh(&ppending_recvframe_queue->lock, &irql); goto _success_exit; } /* 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_88E("DBG_RX_DROP_FRAME %s enqueue_reorder_recvframe fail\n", __func__); #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_88E("+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_88E("DBG_RX_DROP_FRAME %s recv_indicatepkt_reorder error!\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr error!\n", __func__); #endif return retval; } if ((padapter->bDriverStopped ==false)&&( padapter->bSurpriseRemoved==false)) { /* indicate this recv_frame */ RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n" )); rtw_recv_indicatepkt(padapter, prframe); } else { RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n" )); RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved)); retval = _FAIL; return retval; } } return retval; } static int recv_func_prehandle(_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; #endif /* CONFIG_MP_INCLUDED */ #ifdef CONFIG_MP_INCLUDED 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 padapter->mppriv.rx_pktcount++; 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; } static 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; struct sta_info *ptdls_sta = NULL; #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_88E("DBG_RX_DROP_FRAME %s decryptor: drop pkt\n", __func__); #endif ret = _FAIL; goto _recv_data_drop; } #ifdef CONFIG_TDLS /* check TDLS frame */ psnap_type = get_recvframe_data(orig_prframe); psnap_type+=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 */ 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_88E("DBG_RX_DROP_FRAME %s recvframe_chk_defrag: drop pkt\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s portctrl: drop pkt\n", __func__); #endif ret = _FAIL; goto _recv_data_drop; } #ifdef CONFIG_TDLS if (padapter->tdlsinfo.setup_state == TDLS_LINKED_STATE) ptdls_sta = rtw_get_stainfo(&padapter->stapriv, pattrib->src); count_rx_stats(padapter, prframe, ptdls_sta); #else count_rx_stats(padapter, prframe, NULL); #endif /* CONFIG_TDLS */ #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_88E("DBG_RX_DROP_FRAME %s process_recv_indicatepkts fail!\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s wlanhdr_to_ethhdr: drop pkt\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s rtw_recv_indicatepkt fail!\n", __func__); #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_88E("DBG_RX_DROP_FRAME %s ecv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", __func__, 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_88E("DBG_RX_DROP_FRAME %s amsdu_to_msdu fail\n", __func__); #endif rtw_free_recvframe(orig_prframe, pfree_recv_queue); goto _recv_data_drop; } } else { #ifdef DBG_RX_DROP_FRAME DBG_88E("DBG_RX_DROP_FRAME %s what is this condition??\n", __func__); #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; _irqL irqL; while ((pending_frame=rtw_alloc_recvframe(&padapter->recvpriv.uc_swdec_pending_queue))) { if (recv_func_posthandle(padapter, pending_frame) == _SUCCESS) DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__); } } 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) && !is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) && !psecuritypriv->busetkipkey) { rtw_enqueue_recvframe(rframe, &padapter->recvpriv.uc_swdec_pending_queue); DBG_88E("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); goto exit; } 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; #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) u32 num_signal_strength = 0; #endif #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) u32 num_signal_qual = 0; #endif u8 _alpha = 3; /* this value is based on converging_constant = 5000 and sampling_interval = 1000 */ if (adapter->recvpriv.is_signal_dbg) { /* update the user specific value, signal_strength_dbg, to signal_strength, rssi */ adapter->recvpriv.signal_strength= adapter->recvpriv.signal_strength_dbg; adapter->recvpriv.rssi=(s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg); } else { if (recvpriv->signal_strength_data.update_req == 0) {/* update_req is clear, means we got rx */ avg_signal_strength = recvpriv->signal_strength_data.avg_val; #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) num_signal_strength = recvpriv->signal_strength_data.total_num; #endif /* 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; #if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) num_signal_qual = recvpriv->signal_qual_data.total_num; #endif /* after avg_vals are accquired, we can re-stat the signal values */ recvpriv->signal_qual_data.update_req = 1; } /* update value of signal_strength, rssi, signal_qual */ if (check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY) == false) { 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) DBG_88E("%s signal_strength:%3u, rssi:%3d, signal_qual:%3u" ", num_signal_strength:%u, num_signal_qual:%u" "\n" , __func__ , recvpriv->signal_strength , recvpriv->rssi , recvpriv->signal_qual , num_signal_strength, num_signal_qual ); #endif } } rtw_set_signal_stat_timer(recvpriv); } #endif /* CONFIG_NEW_SIGNAL_STAT_PROCESS */