| /****************************************************************************** |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| #define _RTW_RECV_C_ |
| #include <osdep_service.h> |
| #include <drv_types.h> |
| #include <recv_osdep.h> |
| #include <mlme_osdep.h> |
| #include <linux/ip.h> |
| #include <linux/if_ether.h> |
| #include <usb_ops.h> |
| #include <linux/ieee80211.h> |
| #include <wifi.h> |
| #include <rtl8723a_recv.h> |
| #include <rtl8723a_xmit.h> |
| |
| void rtw_signal_stat_timer_hdl23a(unsigned long data); |
| |
| void _rtw_init_sta_recv_priv23a(struct sta_recv_priv *psta_recvpriv) |
| { |
| |
| |
| |
| spin_lock_init(&psta_recvpriv->lock); |
| |
| /* for (i = 0; i<MAX_RX_NUMBLKS; i++) */ |
| /* _rtw_init_queue23a(&psta_recvpriv->blk_strms[i]); */ |
| |
| _rtw_init_queue23a(&psta_recvpriv->defrag_q); |
| |
| |
| } |
| |
| int _rtw_init_recv_priv23a(struct recv_priv *precvpriv, |
| struct rtw_adapter *padapter) |
| { |
| struct recv_frame *precvframe; |
| int i; |
| int res = _SUCCESS; |
| |
| spin_lock_init(&precvpriv->lock); |
| |
| _rtw_init_queue23a(&precvpriv->free_recv_queue); |
| _rtw_init_queue23a(&precvpriv->recv_pending_queue); |
| _rtw_init_queue23a(&precvpriv->uc_swdec_pending_queue); |
| |
| precvpriv->adapter = padapter; |
| |
| for (i = 0; i < NR_RECVFRAME ; i++) { |
| precvframe = kzalloc(sizeof(struct recv_frame), GFP_KERNEL); |
| if (!precvframe) |
| break; |
| INIT_LIST_HEAD(&precvframe->list); |
| |
| list_add_tail(&precvframe->list, |
| &precvpriv->free_recv_queue.queue); |
| |
| precvframe->adapter = padapter; |
| precvframe++; |
| } |
| |
| precvpriv->free_recvframe_cnt = i; |
| precvpriv->rx_pending_cnt = 1; |
| |
| res = rtl8723au_init_recv_priv(padapter); |
| |
| setup_timer(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl23a, |
| (unsigned long)padapter); |
| |
| precvpriv->signal_stat_sampling_interval = 1000; /* ms */ |
| |
| rtw_set_signal_stat_timer(precvpriv); |
| |
| return res; |
| } |
| |
| void _rtw_free_recv_priv23a (struct recv_priv *precvpriv) |
| { |
| struct rtw_adapter *padapter = precvpriv->adapter; |
| struct recv_frame *precvframe; |
| struct list_head *plist, *ptmp; |
| |
| rtw_free_uc_swdec_pending_queue23a(padapter); |
| |
| list_for_each_safe(plist, ptmp, &precvpriv->free_recv_queue.queue) { |
| precvframe = container_of(plist, struct recv_frame, list); |
| list_del_init(&precvframe->list); |
| kfree(precvframe); |
| } |
| |
| rtl8723au_free_recv_priv(padapter); |
| } |
| |
| struct recv_frame *rtw_alloc_recvframe23a(struct rtw_queue *pfree_recv_queue) |
| { |
| struct recv_frame *pframe; |
| struct list_head *plist, *phead; |
| struct rtw_adapter *padapter; |
| struct recv_priv *precvpriv; |
| |
| spin_lock_bh(&pfree_recv_queue->lock); |
| |
| if (list_empty(&pfree_recv_queue->queue)) |
| pframe = NULL; |
| else { |
| phead = get_list_head(pfree_recv_queue); |
| |
| plist = phead->next; |
| |
| pframe = container_of(plist, struct recv_frame, list); |
| |
| list_del_init(&pframe->list); |
| padapter = pframe->adapter; |
| if (padapter) { |
| precvpriv = &padapter->recvpriv; |
| if (pfree_recv_queue == &precvpriv->free_recv_queue) |
| precvpriv->free_recvframe_cnt--; |
| } |
| } |
| |
| spin_unlock_bh(&pfree_recv_queue->lock); |
| |
| return pframe; |
| } |
| |
| int rtw_free_recvframe23a(struct recv_frame *precvframe) |
| { |
| struct rtw_adapter *padapter = precvframe->adapter; |
| struct recv_priv *precvpriv = &padapter->recvpriv; |
| struct rtw_queue *pfree_recv_queue; |
| |
| if (precvframe->pkt) { |
| dev_kfree_skb_any(precvframe->pkt);/* free skb by driver */ |
| precvframe->pkt = NULL; |
| } |
| |
| pfree_recv_queue = &precvpriv->free_recv_queue; |
| spin_lock_bh(&pfree_recv_queue->lock); |
| |
| list_del_init(&precvframe->list); |
| |
| list_add_tail(&precvframe->list, get_list_head(pfree_recv_queue)); |
| |
| if (padapter) { |
| if (pfree_recv_queue == &precvpriv->free_recv_queue) |
| precvpriv->free_recvframe_cnt++; |
| } |
| |
| spin_unlock_bh(&pfree_recv_queue->lock); |
| |
| |
| |
| return _SUCCESS; |
| } |
| |
| int rtw_enqueue_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *queue) |
| { |
| struct rtw_adapter *padapter = precvframe->adapter; |
| struct recv_priv *precvpriv = &padapter->recvpriv; |
| |
| spin_lock_bh(&queue->lock); |
| |
| list_del_init(&precvframe->list); |
| |
| list_add_tail(&precvframe->list, get_list_head(queue)); |
| |
| if (padapter) { |
| if (queue == &precvpriv->free_recv_queue) |
| precvpriv->free_recvframe_cnt++; |
| } |
| |
| spin_unlock_bh(&queue->lock); |
| |
| return _SUCCESS; |
| } |
| |
| /* |
| caller : defrag ; recvframe_chk_defrag23a in recv_thread (passive) |
| pframequeue: defrag_queue : will be accessed in recv_thread (passive) |
| |
| using spinlock to protect |
| |
| */ |
| |
| static void rtw_free_recvframe23a_queue(struct rtw_queue *pframequeue) |
| { |
| struct recv_frame *hdr; |
| struct list_head *plist, *phead, *ptmp; |
| |
| spin_lock(&pframequeue->lock); |
| |
| phead = get_list_head(pframequeue); |
| plist = phead->next; |
| |
| list_for_each_safe(plist, ptmp, phead) { |
| hdr = container_of(plist, struct recv_frame, list); |
| rtw_free_recvframe23a(hdr); |
| } |
| |
| spin_unlock(&pframequeue->lock); |
| } |
| |
| u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter) |
| { |
| u32 cnt = 0; |
| struct recv_frame *pending_frame; |
| |
| while ((pending_frame = rtw_alloc_recvframe23a(&adapter->recvpriv.uc_swdec_pending_queue))) { |
| rtw_free_recvframe23a(pending_frame); |
| DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__); |
| cnt++; |
| } |
| |
| return cnt; |
| } |
| |
| int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue) |
| { |
| spin_lock_bh(&queue->lock); |
| |
| list_del_init(&precvbuf->list); |
| list_add(&precvbuf->list, get_list_head(queue)); |
| |
| spin_unlock_bh(&queue->lock); |
| |
| return _SUCCESS; |
| } |
| |
| int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue) |
| { |
| unsigned long irqL; |
| |
| spin_lock_irqsave(&queue->lock, irqL); |
| |
| list_del_init(&precvbuf->list); |
| |
| list_add_tail(&precvbuf->list, get_list_head(queue)); |
| spin_unlock_irqrestore(&queue->lock, irqL); |
| return _SUCCESS; |
| } |
| |
| struct recv_buf *rtw_dequeue_recvbuf23a (struct rtw_queue *queue) |
| { |
| unsigned long irqL; |
| struct recv_buf *precvbuf; |
| struct list_head *plist, *phead; |
| |
| spin_lock_irqsave(&queue->lock, irqL); |
| |
| if (list_empty(&queue->queue)) { |
| precvbuf = NULL; |
| } else { |
| phead = get_list_head(queue); |
| |
| plist = phead->next; |
| |
| precvbuf = container_of(plist, struct recv_buf, list); |
| |
| list_del_init(&precvbuf->list); |
| } |
| |
| spin_unlock_irqrestore(&queue->lock, irqL); |
| |
| return precvbuf; |
| } |
| |
| int recvframe_chkmic(struct rtw_adapter *adapter, |
| struct recv_frame *precvframe); |
| int recvframe_chkmic(struct rtw_adapter *adapter, |
| struct recv_frame *precvframe) { |
| |
| int i, res = _SUCCESS; |
| u32 datalen; |
| u8 miccode[8]; |
| u8 bmic_err = false, brpt_micerror = true; |
| u8 *pframe, *payload, *pframemic; |
| u8 *mickey; |
| /* u8 *iv, rxdata_key_idx = 0; */ |
| struct sta_info *stainfo; |
| struct rx_pkt_attrib *prxattrib = &precvframe->attrib; |
| struct security_priv *psecuritypriv = &adapter->securitypriv; |
| |
| struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; |
| struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; |
| |
| |
| stainfo = rtw_get_stainfo23a(&adapter->stapriv, &prxattrib->ta[0]); |
| |
| if (prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("\n recvframe_chkmic:prxattrib->encrypt == WLAN_CIPHER_SUITE_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_multicast_ether_addr(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) { |
| res = _FAIL; |
| RT_TRACE(_module_rtl871x_recv_c_, |
| _drv_err_, |
| ("\n recvframe_chkmic:didn't " |
| "install group key!!!!!!\n")); |
| DBG_8723A("\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")); |
| } |
| |
| /* icv_len included the mic code */ |
| datalen = precvframe->pkt->len-prxattrib-> |
| hdrlen-prxattrib->iv_len-prxattrib->icv_len - 8; |
| pframe = precvframe->pkt->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)); |
| |
| /* care the length of the data */ |
| rtw_seccalctkipmic23a(mickey, pframe, payload, |
| datalen, &miccode[0], |
| (unsigned char)prxattrib->priority); |
| |
| 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) { |
| int i; |
| |
| 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))); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("\n ====== demp packet (len =%d) ======" |
| "\n", precvframe->pkt->len)); |
| for (i = 0; i < precvframe->pkt->len; i = i + 8) { |
| RT_TRACE(_module_rtl871x_recv_c_, |
| _drv_err_, ("0x%02x:0x%02x:0x" |
| "%02x:0x%02x:0x%0" |
| "2x:0x%02x:0x%02x" |
| ":0x%02x", |
| *(precvframe->pkt->data+i),*(precvframe->pkt->data+i+1), |
| *(precvframe->pkt->data+i+2),*(precvframe->pkt->data+i+3), |
| *(precvframe->pkt->data+i+4),*(precvframe->pkt->data+i+5), |
| *(precvframe->pkt->data+i+6),*(precvframe->pkt->data+i+7))); |
| } |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("\n ====== demp packet end [len =%d]" |
| "======\n", precvframe->pkt->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_multicast_ether_addr(prxattrib->ra)) && |
| (prxattrib->key_index != |
| pmlmeinfo->key_index)) |
| brpt_micerror = false; |
| |
| if ((prxattrib->bdecrypted == true) && |
| (brpt_micerror == true)) { |
| rtw_handle_tkip_mic_err23a(adapter, (u8)is_multicast_ether_addr(prxattrib->ra)); |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted =%d ", prxattrib->bdecrypted)); |
| DBG_8723A(" 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_8723A(" mic error :prxattrib->" |
| "bdecrypted =%d\n", |
| prxattrib->bdecrypted); |
| } |
| |
| res = _FAIL; |
| } else { |
| /* mic checked ok */ |
| if (!psecuritypriv->bcheck_grpkey && |
| is_multicast_ether_addr(prxattrib->ra)) { |
| psecuritypriv->bcheck_grpkey = 1; |
| RT_TRACE(_module_rtl871x_recv_c_, |
| _drv_err_, |
| ("psecuritypriv->bcheck_grp" |
| "key = true")); |
| } |
| } |
| } else { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("recvframe_chkmic: rtw_get_stainfo23a ==" |
| "NULL!!!\n")); |
| } |
| |
| skb_trim(precvframe->pkt, precvframe->pkt->len - 8); |
| } |
| |
| exit: |
| |
| |
| |
| return res; |
| } |
| |
| /* decrypt and set the ivlen, icvlen of the recv_frame */ |
| struct recv_frame *decryptor(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame); |
| struct recv_frame *decryptor(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| struct rx_pkt_attrib *prxattrib = &precv_frame->attrib; |
| struct security_priv *psecuritypriv = &padapter->securitypriv; |
| struct recv_frame *return_packet = precv_frame; |
| int res = _SUCCESS; |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n", |
| prxattrib->bdecrypted, prxattrib->encrypt)); |
| |
| if (prxattrib->encrypt > 0) { |
| u8 *iv = precv_frame->pkt->data + prxattrib->hdrlen; |
| |
| prxattrib->key_index = (((iv[3]) >> 6) & 0x3); |
| |
| if (prxattrib->key_index > WEP_KEYS) { |
| DBG_8723A("prxattrib->key_index(%d) > WEP_KEYS\n", |
| prxattrib->key_index); |
| |
| switch (prxattrib->encrypt) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| prxattrib->key_index = |
| psecuritypriv->dot11PrivacyKeyIndex; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| case WLAN_CIPHER_SUITE_CCMP: |
| default: |
| prxattrib->key_index = |
| psecuritypriv->dot118021XGrpKeyid; |
| break; |
| } |
| } |
| } |
| |
| if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0))) { |
| psecuritypriv->hw_decrypted = 0; |
| switch (prxattrib->encrypt) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| rtw_wep_decrypt23a(padapter, precv_frame); |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| res = rtw_tkip_decrypt23a(padapter, precv_frame); |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| res = rtw_aes_decrypt23a(padapter, precv_frame); |
| break; |
| default: |
| break; |
| } |
| } else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 && |
| (psecuritypriv->busetkipkey == 1 || |
| prxattrib->encrypt != WLAN_CIPHER_SUITE_TKIP)) { |
| psecuritypriv->hw_decrypted = 1; |
| } |
| |
| if (res == _FAIL) { |
| rtw_free_recvframe23a(return_packet); |
| return_packet = NULL; |
| } |
| |
| |
| |
| return return_packet; |
| } |
| |
| /* set the security information in the recv_frame */ |
| static struct recv_frame *portctrl(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame) |
| { |
| u8 *psta_addr, *ptr; |
| uint auth_alg; |
| struct recv_frame *pfhdr; |
| struct sta_info *psta; |
| struct sta_priv *pstapriv ; |
| struct recv_frame *prtnframe; |
| u16 ether_type; |
| u16 eapol_type = ETH_P_PAE;/* for Funia BD's WPA issue */ |
| struct rx_pkt_attrib *pattrib; |
| |
| pstapriv = &adapter->stapriv; |
| |
| auth_alg = adapter->securitypriv.dot11AuthAlgrthm; |
| |
| pfhdr = precv_frame; |
| pattrib = &pfhdr->attrib; |
| psta_addr = pattrib->ta; |
| psta = rtw_get_stainfo23a(pstapriv, psta_addr); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm =" |
| "%d\n", adapter->securitypriv.dot11AuthAlgrthm)); |
| |
| if (auth_alg == dot11AuthAlgrthm_8021X) { |
| /* get ether_type */ |
| ptr = pfhdr->pkt->data + pfhdr->attrib.hdrlen; |
| |
| ether_type = (ptr[6] << 8) | ptr[7]; |
| |
| 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")); |
| |
| if (ether_type == eapol_type) { |
| prtnframe = precv_frame; |
| } else { |
| /* free this frame */ |
| rtw_free_recvframe23a(precv_frame); |
| 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->attrib.privacy)); |
| |
| if (pattrib->bdecrypted == 0) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("portctrl:prxstat->decrypted =%x\n", |
| pattrib->bdecrypted)); |
| } |
| |
| prtnframe = precv_frame; |
| /* check is the EAPOL frame or not (Rekey) */ |
| if (ether_type == eapol_type) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("########portctrl:ether_type == " |
| "0x888e\n")); |
| /* check Rekey */ |
| |
| prtnframe = precv_frame; |
| } else { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("########portctrl:ether_type = 0x%04x" |
| "\n", ether_type)); |
| } |
| } |
| } else { |
| prtnframe = precv_frame; |
| } |
| |
| return prtnframe; |
| } |
| |
| int recv_decache(struct recv_frame *precv_frame, u8 bretry, |
| struct stainfo_rxcache *prxcache); |
| int recv_decache(struct recv_frame *precv_frame, u8 bretry, |
| struct stainfo_rxcache *prxcache) |
| { |
| int tid = precv_frame->attrib.priority; |
| |
| u16 seq_ctrl = ((precv_frame->attrib.seq_num & 0xffff) << 4) | |
| (precv_frame->attrib.frag_num & 0xf); |
| |
| |
| |
| if (tid > 15) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n", |
| seq_ctrl, tid)); |
| |
| return _FAIL; |
| } |
| |
| if (1) { /* if (bretry) */ |
| if (seq_ctrl == prxcache->tid_rxseq[tid]) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("recv_decache, seq_ctrl = 0x%x, tid = 0x%x, " |
| "tid_rxseq = 0x%x\n", |
| seq_ctrl, tid, prxcache->tid_rxseq[tid])); |
| |
| return _FAIL; |
| } |
| } |
| |
| prxcache->tid_rxseq[tid] = seq_ctrl; |
| |
| |
| |
| return _SUCCESS; |
| } |
| |
| void process23a_pwrbit_data(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame); |
| void process23a_pwrbit_data(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| #ifdef CONFIG_8723AU_AP_MODE |
| unsigned char pwrbit; |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| struct rx_pkt_attrib *pattrib = &precv_frame->attrib; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| struct sta_info *psta = NULL; |
| |
| psta = rtw_get_stainfo23a(pstapriv, pattrib->src); |
| |
| if (psta) { |
| pwrbit = ieee80211_has_pm(hdr->frame_control); |
| |
| if (pwrbit) { |
| if (!(psta->state & WIFI_SLEEP_STATE)) |
| stop_sta_xmit23a(padapter, psta); |
| } else { |
| if (psta->state & WIFI_SLEEP_STATE) |
| wakeup_sta_to_xmit23a(padapter, psta); |
| } |
| } |
| |
| #endif |
| } |
| |
| void process_wmmps_data(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame); |
| void process_wmmps_data(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| #ifdef CONFIG_8723AU_AP_MODE |
| struct rx_pkt_attrib *pattrib = &precv_frame->attrib; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| struct sta_info *psta = NULL; |
| |
| psta = rtw_get_stainfo23a(pstapriv, pattrib->src); |
| |
| if (!psta) |
| return; |
| |
| |
| if (!psta->qos_option) |
| return; |
| |
| if (!(psta->qos_info & 0xf)) |
| return; |
| |
| if (psta->state & WIFI_SLEEP_STATE) { |
| u8 wmmps_ac = 0; |
| |
| switch (pattrib->priority) { |
| case 1: |
| case 2: |
| wmmps_ac = psta->uapsd_bk & BIT(1); |
| break; |
| case 4: |
| case 5: |
| wmmps_ac = psta->uapsd_vi & BIT(1); |
| break; |
| case 6: |
| case 7: |
| wmmps_ac = psta->uapsd_vo & BIT(1); |
| break; |
| case 0: |
| case 3: |
| default: |
| wmmps_ac = psta->uapsd_be & BIT(1); |
| break; |
| } |
| |
| if (wmmps_ac) { |
| if (psta->sleepq_ac_len > 0) { |
| /* process received triggered frame */ |
| xmit_delivery_enabled_frames23a(padapter, psta); |
| } else { |
| /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */ |
| issue_qos_nulldata23a(padapter, psta->hwaddr, |
| (u16)pattrib->priority, |
| 0, 0); |
| } |
| } |
| } |
| |
| #endif |
| } |
| |
| static void count_rx_stats(struct rtw_adapter *padapter, |
| struct 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->attrib; |
| struct recv_priv *precvpriv = &padapter->recvpriv; |
| |
| sz = prframe->pkt->len; |
| precvpriv->rx_bytes += sz; |
| |
| padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++; |
| |
| if ((!is_broadcast_ether_addr(pattrib->dst)) && |
| (!is_multicast_ether_addr(pattrib->dst))) |
| padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++; |
| |
| if (sta) |
| psta = sta; |
| else |
| psta = prframe->psta; |
| |
| if (psta) { |
| pstats = &psta->sta_stats; |
| |
| pstats->rx_data_pkts++; |
| pstats->rx_bytes += sz; |
| } |
| } |
| |
| static int sta2sta_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame, |
| struct sta_info**psta) |
| { |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| int ret = _SUCCESS; |
| struct rx_pkt_attrib *pattrib = & precv_frame->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; |
| int bmcast = is_multicast_ether_addr(pattrib->dst); |
| |
| |
| |
| if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) || |
| check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) { |
| |
| /* filter packets that SA is myself or multicast or broadcast */ |
| if (ether_addr_equal(myhwaddr, pattrib->src)) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| (" SA == myself\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") || |
| ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") || |
| !ether_addr_equal(pattrib->bssid, mybssid)) { |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| sta_addr = pattrib->src; |
| } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { |
| /* For Station mode, sa and bssid should always be BSSID, |
| and DA is my mac-address */ |
| if (!ether_addr_equal(pattrib->bssid, pattrib->src)) { |
| 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)) { |
| if (bmcast) { |
| /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */ |
| if (!is_multicast_ether_addr(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 (!ether_addr_equal(pattrib->bssid, pattrib->dst)) { |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| sta_addr = pattrib->src; |
| } |
| } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) { |
| ether_addr_copy(pattrib->dst, hdr->addr1); |
| ether_addr_copy(pattrib->src, hdr->addr2); |
| ether_addr_copy(pattrib->bssid, hdr->addr3); |
| ether_addr_copy(pattrib->ra, pattrib->dst); |
| ether_addr_copy(pattrib->ta, pattrib->src); |
| |
| sta_addr = mybssid; |
| } else { |
| ret = _FAIL; |
| } |
| |
| if (bmcast) |
| *psta = rtw_get_bcmc_stainfo23a(adapter); |
| else |
| *psta = rtw_get_stainfo23a(pstapriv, sta_addr); /* get ap_info */ |
| |
| if (*psta == NULL) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| exit: |
| |
| return ret; |
| } |
| |
| int ap2sta_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame, |
| struct sta_info **psta); |
| int ap2sta_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame, |
| struct sta_info **psta) |
| { |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| struct rx_pkt_attrib *pattrib = & precv_frame->attrib; |
| int ret = _SUCCESS; |
| struct sta_priv *pstapriv = &adapter->stapriv; |
| struct mlme_priv *pmlmepriv = &adapter->mlmepriv; |
| u8 *mybssid = get_bssid(pmlmepriv); |
| u8 *myhwaddr = myid(&adapter->eeprompriv); |
| int bmcast = is_multicast_ether_addr(pattrib->dst); |
| |
| |
| |
| if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && |
| (check_fwstate(pmlmepriv, _FW_LINKED) || |
| check_fwstate(pmlmepriv, _FW_UNDER_LINKING))) { |
| |
| /* filter packets that SA is myself or multicast or broadcast */ |
| if (ether_addr_equal(myhwaddr, pattrib->src)) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| (" SA == myself\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| /* da should be for me */ |
| if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| (" ap2sta_data_frame: compare DA fail; DA =" |
| MAC_FMT"\n", MAC_ARG(pattrib->dst))); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| /* check BSSID */ |
| if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") || |
| ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") || |
| !ether_addr_equal(pattrib->bssid, mybssid)) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| (" ap2sta_data_frame: compare BSSID fail ; " |
| "BSSID ="MAC_FMT"\n", MAC_ARG(pattrib->bssid))); |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("mybssid ="MAC_FMT"\n", MAC_ARG(mybssid))); |
| |
| if (!bmcast) { |
| DBG_8723A("issue_deauth23a to the nonassociated " |
| "ap =" MAC_FMT " for the reason(7)\n", |
| MAC_ARG(pattrib->bssid)); |
| issue_deauth23a(adapter, pattrib->bssid, |
| WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); |
| } |
| |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| if (bmcast) |
| *psta = rtw_get_bcmc_stainfo23a(adapter); |
| else |
| /* get ap_info */ |
| *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); |
| |
| if (*psta == NULL) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("ap2sta: can't get psta under STATION_MODE ;" |
| " drop pkt\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| if (ieee80211_is_nullfunc(hdr->frame_control)) { |
| /* 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) && |
| check_fwstate(pmlmepriv, _FW_LINKED)) { |
| ether_addr_copy(pattrib->dst, hdr->addr1); |
| ether_addr_copy(pattrib->src, hdr->addr2); |
| ether_addr_copy(pattrib->bssid, hdr->addr3); |
| ether_addr_copy(pattrib->ra, pattrib->dst); |
| ether_addr_copy(pattrib->ta, pattrib->src); |
| |
| /* */ |
| ether_addr_copy(pattrib->bssid, mybssid); |
| |
| /* get sta_info */ |
| *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); |
| if (*psta == NULL) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("can't get psta under MP_MODE ; drop pkt\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
| /* Special case */ |
| ret = RTW_RX_HANDLED; |
| goto exit; |
| } else { |
| if (ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { |
| *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); |
| if (*psta == NULL) { |
| DBG_8723A("issue_deauth23a to the ap =" MAC_FMT |
| " for the reason(7)\n", |
| MAC_ARG(pattrib->bssid)); |
| |
| issue_deauth23a(adapter, pattrib->bssid, |
| WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); |
| } |
| } |
| |
| ret = _FAIL; |
| } |
| |
| exit: |
| |
| |
| |
| return ret; |
| } |
| |
| int sta2ap_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame, |
| struct sta_info **psta); |
| int sta2ap_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame, |
| struct sta_info **psta) |
| { |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| struct rx_pkt_attrib *pattrib = & precv_frame->attrib; |
| struct sta_priv *pstapriv = &adapter->stapriv; |
| struct mlme_priv *pmlmepriv = &adapter->mlmepriv; |
| unsigned char *mybssid = get_bssid(pmlmepriv); |
| int ret = _SUCCESS; |
| |
| |
| |
| if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
| /* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */ |
| if (!ether_addr_equal(pattrib->bssid, mybssid)) { |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| *psta = rtw_get_stainfo23a(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_8723A("issue_deauth23a to sta =" MAC_FMT |
| " for the reason(7)\n", |
| MAC_ARG(pattrib->src)); |
| |
| issue_deauth23a(adapter, pattrib->src, |
| WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); |
| |
| ret = RTW_RX_HANDLED; |
| goto exit; |
| } |
| |
| process23a_pwrbit_data(adapter, precv_frame); |
| |
| /* We only get here if it's a data frame, so no need to |
| * confirm data frame type first */ |
| if (ieee80211_is_data_qos(hdr->frame_control)) |
| process_wmmps_data(adapter, precv_frame); |
| |
| if (ieee80211_is_nullfunc(hdr->frame_control)) { |
| /* 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 (!ether_addr_equal(pattrib->ra, myhwaddr)) { |
| ret = RTW_RX_HANDLED; |
| goto exit; |
| } |
| DBG_8723A("issue_deauth23a to sta =" MAC_FMT " for the reason(7)\n", |
| MAC_ARG(pattrib->src)); |
| issue_deauth23a(adapter, pattrib->src, |
| WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); |
| ret = RTW_RX_HANDLED; |
| goto exit; |
| } |
| |
| exit: |
| |
| |
| |
| return ret; |
| } |
| |
| static int validate_recv_ctrl_frame(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| #ifdef CONFIG_8723AU_AP_MODE |
| struct rx_pkt_attrib *pattrib = &precv_frame->attrib; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| |
| if (!ieee80211_is_ctl(hdr->frame_control)) |
| return _FAIL; |
| |
| /* receive the frames that ra(a1) is my address */ |
| if (!ether_addr_equal(hdr->addr1, myid(&padapter->eeprompriv))) |
| return _FAIL; |
| |
| /* only handle ps-poll */ |
| if (ieee80211_is_pspoll(hdr->frame_control)) { |
| struct ieee80211_pspoll *psp = (struct ieee80211_pspoll *)hdr; |
| u16 aid; |
| u8 wmmps_ac = 0; |
| struct sta_info *psta = NULL; |
| |
| aid = le16_to_cpu(psp->aid) & 0x3fff; |
| psta = rtw_get_stainfo23a(pstapriv, hdr->addr2); |
| |
| if (!psta || 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_8723A("%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 & CHKBIT(psta->aid))) { |
| struct list_head *xmitframe_plist, *xmitframe_phead; |
| struct xmit_frame *pxmitframe; |
| struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| |
| spin_lock_bh(&pxmitpriv->lock); |
| |
| xmitframe_phead = get_list_head(&psta->sleep_q); |
| xmitframe_plist = xmitframe_phead->next; |
| |
| if (!list_empty(xmitframe_phead)) { |
| pxmitframe = container_of(xmitframe_plist, |
| struct xmit_frame, |
| list); |
| |
| xmitframe_plist = xmitframe_plist->next; |
| |
| list_del_init(&pxmitframe->list); |
| |
| psta->sleepq_len--; |
| |
| if (psta->sleepq_len>0) |
| pxmitframe->attrib.mdata = 1; |
| else |
| pxmitframe->attrib.mdata = 0; |
| |
| pxmitframe->attrib.triggered = 1; |
| |
| /* DBG_8723A("handling ps-poll, q_len =%d, tim =%x\n", psta->sleepq_len, pstapriv->tim_bitmap); */ |
| |
| rtl8723au_hal_xmitframe_enqueue(padapter, |
| pxmitframe); |
| |
| if (psta->sleepq_len == 0) { |
| pstapriv->tim_bitmap &= ~CHKBIT(psta->aid); |
| |
| /* DBG_8723A("after handling ps-poll, tim =%x\n", pstapriv->tim_bitmap); */ |
| |
| /* update BCN for TIM IE */ |
| /* update_BCNTIM(padapter); */ |
| update_beacon23a(padapter, WLAN_EID_TIM, |
| NULL, false); |
| } |
| |
| /* spin_unlock_bh(&psta->sleep_q.lock); */ |
| spin_unlock_bh(&pxmitpriv->lock); |
| |
| } else { |
| /* spin_unlock_bh(&psta->sleep_q.lock); */ |
| spin_unlock_bh(&pxmitpriv->lock); |
| |
| /* DBG_8723A("no buffered packets to xmit\n"); */ |
| if (pstapriv->tim_bitmap & CHKBIT(psta->aid)) { |
| if (psta->sleepq_len == 0) { |
| DBG_8723A("no buffered packets " |
| "to xmit\n"); |
| |
| /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */ |
| issue_nulldata23a(padapter, |
| psta->hwaddr, |
| 0, 0, 0); |
| } else { |
| DBG_8723A("error!psta->sleepq" |
| "_len =%d\n", |
| psta->sleepq_len); |
| psta->sleepq_len = 0; |
| } |
| |
| pstapriv->tim_bitmap &= ~CHKBIT(psta->aid); |
| |
| /* update BCN for TIM IE */ |
| /* update_BCNTIM(padapter); */ |
| update_beacon23a(padapter, WLAN_EID_TIM, |
| NULL, false); |
| } |
| } |
| } |
| } |
| |
| #endif |
| return _FAIL; |
| } |
| |
| struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame); |
| static int validate_recv_mgnt_frame(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| struct sta_info *psta; |
| struct sk_buff *skb; |
| struct ieee80211_hdr *hdr; |
| /* struct mlme_priv *pmlmepriv = &adapter->mlmepriv; */ |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("+validate_recv_mgnt_frame\n")); |
| |
| precv_frame = recvframe_chk_defrag23a(padapter, precv_frame); |
| if (precv_frame == NULL) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("%s: fragment packet\n", __func__)); |
| return _SUCCESS; |
| } |
| |
| skb = precv_frame->pkt; |
| hdr = (struct ieee80211_hdr *) skb->data; |
| |
| /* for rx pkt statistics */ |
| psta = rtw_get_stainfo23a(&padapter->stapriv, hdr->addr2); |
| if (psta) { |
| psta->sta_stats.rx_mgnt_pkts++; |
| |
| if (ieee80211_is_beacon(hdr->frame_control)) |
| psta->sta_stats.rx_beacon_pkts++; |
| else if (ieee80211_is_probe_req(hdr->frame_control)) |
| psta->sta_stats.rx_probereq_pkts++; |
| else if (ieee80211_is_probe_resp(hdr->frame_control)) { |
| if (ether_addr_equal(padapter->eeprompriv.mac_addr, |
| hdr->addr1)) |
| psta->sta_stats.rx_probersp_pkts++; |
| else if (is_broadcast_ether_addr(hdr->addr1) || |
| is_multicast_ether_addr(hdr->addr1)) |
| psta->sta_stats.rx_probersp_bm_pkts++; |
| else |
| psta->sta_stats.rx_probersp_uo_pkts++; |
| } |
| } |
| |
| mgt_dispatcher23a(padapter, precv_frame); |
| |
| return _SUCCESS; |
| } |
| |
| static int validate_recv_data_frame(struct rtw_adapter *adapter, |
| struct recv_frame *precv_frame) |
| { |
| u8 bretry; |
| u8 *psa, *pda; |
| struct sta_info *psta = NULL; |
| struct rx_pkt_attrib *pattrib = & precv_frame->attrib; |
| struct security_priv *psecuritypriv = &adapter->securitypriv; |
| int ret = _SUCCESS; |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| |
| |
| |
| bretry = ieee80211_has_retry(hdr->frame_control); |
| pda = ieee80211_get_DA(hdr); |
| psa = ieee80211_get_SA(hdr); |
| |
| ether_addr_copy(pattrib->dst, pda); |
| ether_addr_copy(pattrib->src, psa); |
| |
| switch (hdr->frame_control & |
| cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { |
| case cpu_to_le16(0): |
| ether_addr_copy(pattrib->bssid, hdr->addr3); |
| ether_addr_copy(pattrib->ra, pda); |
| ether_addr_copy(pattrib->ta, psa); |
| ret = sta2sta_data_frame(adapter, precv_frame, &psta); |
| break; |
| |
| case cpu_to_le16(IEEE80211_FCTL_FROMDS): |
| ether_addr_copy(pattrib->bssid, hdr->addr2); |
| ether_addr_copy(pattrib->ra, pda); |
| ether_addr_copy(pattrib->ta, hdr->addr2); |
| ret = ap2sta_data_frame(adapter, precv_frame, &psta); |
| break; |
| |
| case cpu_to_le16(IEEE80211_FCTL_TODS): |
| ether_addr_copy(pattrib->bssid, hdr->addr1); |
| ether_addr_copy(pattrib->ra, hdr->addr1); |
| ether_addr_copy(pattrib->ta, psa); |
| ret = sta2ap_data_frame(adapter, precv_frame, &psta); |
| break; |
| |
| case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS): |
| /* |
| * There is no BSSID in this case, but the driver has been |
| * using addr1 so far, so keep it for now. |
| */ |
| ether_addr_copy(pattrib->bssid, hdr->addr1); |
| ether_addr_copy(pattrib->ra, hdr->addr1); |
| ether_addr_copy(pattrib->ta, hdr->addr2); |
| ret = _FAIL; |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n")); |
| break; |
| } |
| |
| if ((ret == _FAIL) || (ret == RTW_RX_HANDLED)) |
| goto exit; |
| |
| if (!psta) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| (" after to_fr_ds_chk; psta == NULL\n")); |
| ret = _FAIL; |
| goto exit; |
| } |
| |
| /* psta->rssi = prxcmd->rssi; */ |
| /* psta->signal_quality = prxcmd->sq; */ |
| precv_frame->psta = psta; |
| |
| pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr); |
| if (ieee80211_has_a4(hdr->frame_control)) |
| pattrib->hdrlen += ETH_ALEN; |
| |
| /* parsing QC field */ |
| if (pattrib->qos == 1) { |
| __le16 *qptr = (__le16 *)ieee80211_get_qos_ctl(hdr); |
| u16 qos_ctrl = le16_to_cpu(*qptr); |
| |
| pattrib->priority = qos_ctrl & IEEE80211_QOS_CTL_TID_MASK; |
| pattrib->ack_policy = (qos_ctrl >> 5) & 3; |
| pattrib->amsdu = |
| (qos_ctrl & IEEE80211_QOS_CTL_A_MSDU_PRESENT) >> 7; |
| pattrib->hdrlen += IEEE80211_QOS_CTL_LEN; |
| |
| if (pattrib->priority != 0 && pattrib->priority != 3) { |
| adapter->recvpriv.bIsAnyNonBEPkts = true; |
| } |
| } else { |
| pattrib->priority = 0; |
| pattrib->ack_policy = 0; |
| pattrib->amsdu = 0; |
| } |
| |
| if (pattrib->order) { /* HT-CTRL 11n */ |
| pattrib->hdrlen += 4; |
| } |
| |
| precv_frame->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")); |
| 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_multicast_ether_addr" |
| "(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n", |
| pattrib->ra[0], |
| is_multicast_ether_addr(pattrib->ra))); |
| |
| GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, |
| is_multicast_ether_addr(pattrib->ra)); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("\n pattrib->encrypt =%d\n", pattrib->encrypt)); |
| |
| switch (pattrib->encrypt) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| pattrib->iv_len = IEEE80211_WEP_IV_LEN; |
| pattrib->icv_len = IEEE80211_WEP_ICV_LEN; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| pattrib->iv_len = IEEE80211_TKIP_IV_LEN; |
| pattrib->icv_len = IEEE80211_TKIP_ICV_LEN; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| pattrib->iv_len = IEEE80211_CCMP_HDR_LEN; |
| pattrib->icv_len = IEEE80211_CCMP_MIC_LEN; |
| break; |
| default: |
| pattrib->iv_len = 0; |
| pattrib->icv_len = 0; |
| break; |
| } |
| } else { |
| pattrib->encrypt = 0; |
| pattrib->iv_len = 0; |
| pattrib->icv_len = 0; |
| } |
| |
| exit: |
| |
| |
| |
| return ret; |
| } |
| |
| static void dump_rx_pkt(struct sk_buff *skb, u16 type, int level) |
| { |
| int i; |
| u8 *ptr; |
| |
| if ((level == 1) || |
| ((level == 2) && (type == IEEE80211_FTYPE_MGMT)) || |
| ((level == 3) && (type == IEEE80211_FTYPE_DATA))) { |
| |
| ptr = skb->data; |
| |
| DBG_8723A("#############################\n"); |
| |
| for (i = 0; i < 64; i = i + 8) |
| DBG_8723A("%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_8723A("#############################\n"); |
| } |
| } |
| |
| static int validate_recv_frame(struct rtw_adapter *adapter, |
| struct 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; |
| int retval = _SUCCESS; |
| struct rx_pkt_attrib *pattrib = & precv_frame->attrib; |
| struct sk_buff *skb = precv_frame->pkt; |
| struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; |
| u8 ver; |
| u8 bDumpRxPkt; |
| u16 seq_ctrl, fctl; |
| |
| fctl = le16_to_cpu(hdr->frame_control); |
| ver = fctl & IEEE80211_FCTL_VERS; |
| type = fctl & IEEE80211_FCTL_FTYPE; |
| subtype = fctl & IEEE80211_FCTL_STYPE; |
| |
| /* 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; |
| } |
| |
| seq_ctrl = le16_to_cpu(hdr->seq_ctrl); |
| pattrib->frag_num = seq_ctrl & IEEE80211_SCTL_FRAG; |
| pattrib->seq_num = seq_ctrl >> 4; |
| |
| pattrib->pw_save = ieee80211_has_pm(hdr->frame_control); |
| pattrib->mfrag = ieee80211_has_morefrags(hdr->frame_control); |
| pattrib->mdata = ieee80211_has_moredata(hdr->frame_control); |
| pattrib->privacy = ieee80211_has_protected(hdr->frame_control); |
| pattrib->order = ieee80211_has_order(hdr->frame_control); |
| |
| GetHalDefVar8192CUsb(adapter, HAL_DEF_DBG_DUMP_RXPKT, &bDumpRxPkt); |
| |
| if (unlikely(bDumpRxPkt == 1)) |
| dump_rx_pkt(skb, type, bDumpRxPkt); |
| |
| switch (type) { |
| case IEEE80211_FTYPE_MGMT: |
| 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 IEEE80211_FTYPE_CTL: |
| 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 IEEE80211_FTYPE_DATA: |
| rtw_led_control(adapter, LED_CTL_RX); |
| pattrib->qos = (subtype & IEEE80211_STYPE_QOS_DATA) ? 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)); |
| retval = _FAIL; |
| break; |
| } |
| |
| exit: |
| return retval; |
| } |
| |
| /* remove the wlanhdr and add the eth_hdr */ |
| |
| static int wlanhdr_to_ethhdr (struct recv_frame *precvframe) |
| { |
| u16 eth_type, len, hdrlen; |
| u8 bsnaphdr; |
| u8 *psnap; |
| struct rtw_adapter *adapter = precvframe->adapter; |
| struct mlme_priv *pmlmepriv = &adapter->mlmepriv; |
| |
| struct sk_buff *skb = precvframe->pkt; |
| u8 *ptr; |
| struct rx_pkt_attrib *pattrib = &precvframe->attrib; |
| |
| |
| |
| ptr = skb->data; |
| hdrlen = pattrib->hdrlen; |
| psnap = ptr + hdrlen; |
| eth_type = (psnap[6] << 8) | psnap[7]; |
| /* convert hdr + possible LLC headers into Ethernet header */ |
| /* eth_type = (psnap_type[0] << 8) | psnap_type[1]; */ |
| if ((ether_addr_equal(psnap, rfc1042_header) && |
| eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || |
| ether_addr_equal(psnap, bridge_tunnel_header)) { |
| /* remove RFC1042 or Bridge-Tunnel encapsulation |
| and replace EtherType */ |
| bsnaphdr = true; |
| hdrlen += SNAP_SIZE; |
| } else { |
| /* Leave Ethernet header part of hdr and full payload */ |
| bsnaphdr = false; |
| eth_type = (psnap[0] << 8) | psnap[1]; |
| } |
| |
| len = skb->len - hdrlen; |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("\n === pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n\n", |
| pattrib->hdrlen, pattrib->iv_len)); |
| |
| pattrib->eth_type = eth_type; |
| if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) { |
| ptr += hdrlen; |
| *ptr = 0x87; |
| *(ptr + 1) = 0x12; |
| |
| eth_type = 0x8712; |
| /* append rx status for mp test packets */ |
| |
| ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + 2) - 24); |
| memcpy(ptr, skb->head, 24); |
| ptr += 24; |
| } else { |
| ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + |
| (bsnaphdr ? 2:0))); |
| } |
| |
| ether_addr_copy(ptr, pattrib->dst); |
| ether_addr_copy(ptr + ETH_ALEN, pattrib->src); |
| |
| if (!bsnaphdr) { |
| len = htons(len); |
| memcpy(ptr + 12, &len, 2); |
| } |
| |
| |
| return _SUCCESS; |
| } |
| |
| /* perform defrag */ |
| struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter, |
| struct rtw_queue *defrag_q); |
| struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter, |
| struct rtw_queue *defrag_q) |
| { |
| struct list_head *plist, *phead, *ptmp; |
| u8 *data, wlanhdr_offset; |
| u8 curfragnum; |
| struct recv_frame *pnfhdr; |
| struct recv_frame *prframe, *pnextrframe; |
| struct rtw_queue *pfree_recv_queue; |
| struct sk_buff *skb; |
| |
| |
| |
| curfragnum = 0; |
| pfree_recv_queue = &adapter->recvpriv.free_recv_queue; |
| |
| phead = get_list_head(defrag_q); |
| plist = phead->next; |
| prframe = container_of(plist, struct recv_frame, list); |
| list_del_init(&prframe->list); |
| skb = prframe->pkt; |
| |
| if (curfragnum != prframe->attrib.frag_num) { |
| /* the first fragment number must be 0 */ |
| /* free the whole queue */ |
| rtw_free_recvframe23a(prframe); |
| rtw_free_recvframe23a_queue(defrag_q); |
| |
| return NULL; |
| } |
| |
| curfragnum++; |
| |
| phead = get_list_head(defrag_q); |
| |
| data = prframe->pkt->data; |
| |
| list_for_each_safe(plist, ptmp, phead) { |
| pnfhdr = container_of(plist, struct recv_frame, list); |
| pnextrframe = (struct recv_frame *)pnfhdr; |
| /* 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_recvframe23a(prframe); |
| rtw_free_recvframe23a_queue(defrag_q); |
| 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; |
| |
| skb_pull(pnfhdr->pkt, wlanhdr_offset); |
| |
| /* append to first fragment frame's tail |
| (if privacy frame, pull the ICV) */ |
| |
| skb_trim(skb, skb->len - prframe->attrib.icv_len); |
| |
| memcpy(skb_tail_pointer(skb), pnfhdr->pkt->data, |
| pnfhdr->pkt->len); |
| |
| skb_put(skb, pnfhdr->pkt->len); |
| |
| prframe->attrib.icv_len = pnfhdr->attrib.icv_len; |
| } |
| |
| /* free the defrag_q queue and return the prframe */ |
| rtw_free_recvframe23a_queue(defrag_q); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("Performance defrag!!!!!\n")); |
| |
| |
| |
| return prframe; |
| } |
| |
| /* check if need to defrag, if needed queue the frame to defrag_q */ |
| struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter, |
| struct recv_frame *precv_frame) |
| { |
| u8 ismfrag; |
| u8 fragnum; |
| u8 *psta_addr; |
| struct recv_frame *pfhdr; |
| struct sta_info *psta; |
| struct sta_priv *pstapriv; |
| struct list_head *phead; |
| struct recv_frame *prtnframe = NULL; |
| struct rtw_queue *pfree_recv_queue, *pdefrag_q; |
| |
| |
| |
| pstapriv = &padapter->stapriv; |
| |
| pfhdr = precv_frame; |
| |
| 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_stainfo23a(pstapriv, psta_addr); |
| if (!psta) { |
| struct ieee80211_hdr *hdr = |
| (struct ieee80211_hdr *) pfhdr->pkt->data; |
| if (!ieee80211_is_data(hdr->frame_control)) { |
| psta = rtw_get_bcmc_stainfo23a(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 (!list_empty(&pdefrag_q->queue)) { |
| /* free current defrag_q */ |
| rtw_free_recvframe23a_queue(pdefrag_q); |
| } |
| } |
| |
| /* Then enqueue the 0~(n-1) fragment into the |
| defrag_q */ |
| |
| /* spin_lock(&pdefrag_q->lock); */ |
| phead = get_list_head(pdefrag_q); |
| list_add_tail(&pfhdr->list, phead); |
| /* spin_unlock(&pdefrag_q->lock); */ |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("Enqueuq: ismfrag = %d, fragnum = %d\n", |
| ismfrag, fragnum)); |
| |
| prtnframe = NULL; |
| |
| } else { |
| /* can't find this ta's defrag_queue, |
| so free this recv_frame */ |
| rtw_free_recvframe23a(precv_frame); |
| 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) { |
| /* spin_lock(&pdefrag_q->lock); */ |
| phead = get_list_head(pdefrag_q); |
| list_add_tail(&pfhdr->list, phead); |
| /* spin_unlock(&pdefrag_q->lock); */ |
| |
| /* call recvframe_defrag to defrag */ |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
| ("defrag: ismfrag = %d, fragnum = %d\n", |
| ismfrag, fragnum)); |
| precv_frame = recvframe_defrag(padapter, pdefrag_q); |
| prtnframe = precv_frame; |
| } else { |
| /* can't find this ta's defrag_queue, |
| so free this recv_frame */ |
| rtw_free_recvframe23a(precv_frame); |
| 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->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_recvframe23a(prtnframe); |
| prtnframe = NULL; |
| } |
| } |
| |
| |
| |
| return prtnframe; |
| } |
| |
| int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe); |
| int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe) |
| { |
| struct rx_pkt_attrib *pattrib; |
| struct sk_buff *skb, *sub_skb; |
| struct sk_buff_head skb_list; |
| |
| pattrib = &prframe->attrib; |
| |
| skb = prframe->pkt; |
| skb_pull(skb, prframe->attrib.hdrlen); |
| __skb_queue_head_init(&skb_list); |
| |
| ieee80211_amsdu_to_8023s(skb, &skb_list, NULL, 0, 0, false); |
| |
| while (!skb_queue_empty(&skb_list)) { |
| sub_skb = __skb_dequeue(&skb_list); |
| |
| sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev); |
| sub_skb->dev = padapter->pnetdev; |
| |
| sub_skb->ip_summed = CHECKSUM_NONE; |
| |
| netif_rx(sub_skb); |
| } |
| |
| prframe->pkt = NULL; |
| rtw_free_recvframe23a(prframe); |
| return _SUCCESS; |
| } |
| |
| int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num); |
| int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) |
| { |
| u8 wsize = preorder_ctrl->wsize_b; |
| u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF; |
| |
| /* Rx Reorder initialize condition. */ |
| if (preorder_ctrl->indicate_seq == 0xFFFF) |
| preorder_ctrl->indicate_seq = seq_num; |
| |
| /* Drop out the packet which SeqNum is smaller than WinStart */ |
| if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) |
| 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; |
| } else if (SN_LESS(wend, 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; |
| } |
| return true; |
| } |
| |
| static int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl, |
| struct recv_frame *prframe) |
| { |
| struct rx_pkt_attrib *pattrib = &prframe->attrib; |
| struct rtw_queue *ppending_recvframe_queue; |
| struct list_head *phead, *plist, *ptmp; |
| struct recv_frame *hdr; |
| struct rx_pkt_attrib *pnextattrib; |
| |
| ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; |
| /* DbgPrint("+enqueue_reorder_recvframe23a()\n"); */ |
| |
| /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */ |
| /* spin_lock_ex(&ppending_recvframe_queue->lock); */ |
| |
| phead = get_list_head(ppending_recvframe_queue); |
| |
| list_for_each_safe(plist, ptmp, phead) { |
| hdr = container_of(plist, struct recv_frame, list); |
| pnextattrib = &hdr->attrib; |
| |
| if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) { |
| continue; |
| } else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) { |
| /* Duplicate entry is found!! Do not insert current entry. */ |
| /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Duplicate packet is dropped!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */ |
| |
| /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */ |
| return false; |
| } else { |
| break; |
| } |
| |
| /* DbgPrint("enqueue_reorder_recvframe23a():while\n"); */ |
| } |
| |
| /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */ |
| /* spin_lock_ex(&ppending_recvframe_queue->lock); */ |
| |
| list_del_init(&prframe->list); |
| |
| list_add_tail(&prframe->list, plist); |
| |
| /* spin_unlock_ex(&ppending_recvframe_queue->lock); */ |
| /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */ |
| |
| /* RT_TRACE(COMP_RX_REORDER, DBG_TRACE, ("InsertRxReorderList(): Pkt insert into buffer!! IndicateSeq: %d, NewSeq: %d\n", pTS->RxIndicateSeq, SeqNum)); */ |
| return true; |
| } |
| |
| int recv_indicatepkts_in_order(struct rtw_adapter *padapter, |
| struct recv_reorder_ctrl *preorder_ctrl, |
| int bforced); |
| int recv_indicatepkts_in_order(struct rtw_adapter *padapter, |
| struct recv_reorder_ctrl *preorder_ctrl, |
| int bforced) |
| { |
| /* u8 bcancelled; */ |
| struct list_head *phead, *plist; |
| struct recv_frame *prframe; |
| struct rx_pkt_attrib *pattrib; |
| /* u8 index = 0; */ |
| int bPktInBuf = false; |
| struct recv_priv *precvpriv; |
| struct rtw_queue *ppending_recvframe_queue; |
| |
| precvpriv = &padapter->recvpriv; |
| ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; |
| /* DbgPrint("+recv_indicatepkts_in_order\n"); */ |
| |
| /* spin_lock_irqsave(&ppending_recvframe_queue->lock); */ |
| /* spin_lock_ex(&ppending_recvframe_queue->lock); */ |
| |
| phead = get_list_head(ppending_recvframe_queue); |
| plist = phead->next; |
| |
| /* Handling some condition for forced indicate case. */ |
| if (bforced) { |
| if (list_empty(phead)) { |
| /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */ |
| /* spin_unlock_ex(&ppending_recvframe_queue->lock); */ |
| return true; |
| } |
| |
| prframe = container_of(plist, struct recv_frame, list); |
| pattrib = &prframe->attrib; |
| preorder_ctrl->indicate_seq = pattrib->seq_num; |
| } |
| |
| /* Prepare indication list and indication. */ |
| /* Check if there is any packet need indicate. */ |
| while (!list_empty(phead)) { |
| |
| prframe = container_of(plist, struct recv_frame, list); |
| pattrib = &prframe->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 = plist->next; |
| list_del_init(&prframe->list); |
| |
| if (SN_EQUAL(preorder_ctrl->indicate_seq, |
| pattrib->seq_num)) { |
| preorder_ctrl->indicate_seq = |
| (preorder_ctrl->indicate_seq + 1)&0xFFF; |
| } |
| |
| if (!pattrib->amsdu) { |
| if ((padapter->bDriverStopped == false) && |
| (padapter->bSurpriseRemoved == false)) { |
| rtw_recv_indicatepkt23a(padapter, prframe); |
| } |
| } else { |
| if (amsdu_to_msdu(padapter, prframe) != |
| _SUCCESS) |
| rtw_free_recvframe23a(prframe); |
| } |
| |
| /* Update local variables. */ |
| bPktInBuf = false; |
| |
| } else { |
| bPktInBuf = true; |
| break; |
| } |
| |
| /* DbgPrint("recv_indicatepkts_in_order():while\n"); */ |
| } |
| |
| /* spin_unlock_ex(&ppending_recvframe_queue->lock); */ |
| /* spin_unlock_irqrestore(&ppending_recvframe_queue->lock); */ |
| |
| return bPktInBuf; |
| } |
| |
| int recv_indicatepkt_reorder(struct rtw_adapter *padapter, |
| struct recv_frame *prframe); |
| int recv_indicatepkt_reorder(struct rtw_adapter *padapter, |
| struct recv_frame *prframe) |
| { |
| int retval = _SUCCESS; |
| struct rx_pkt_attrib *pattrib; |
| struct recv_reorder_ctrl *preorder_ctrl; |
| struct rtw_queue *ppending_recvframe_queue; |
| |
| pattrib = &prframe->attrib; |
| preorder_ctrl = prframe->preorder_ctrl; |
| ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; |
| |
| if (!pattrib->amsdu) { |
| /* s1. */ |
| wlanhdr_to_ethhdr(prframe); |
| |
| if ((pattrib->qos!= 1) || (pattrib->eth_type == ETH_P_ARP) || |
| (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_indicatepkt23a(padapter, prframe); |
| return _SUCCESS; |
| } |
| |
| return _FAIL; |
| } |
| |
| if (preorder_ctrl->enable == false) { |
| /* indicate this recv_frame */ |
| preorder_ctrl->indicate_seq = pattrib->seq_num; |
| rtw_recv_indicatepkt23a(padapter, prframe); |
| |
| preorder_ctrl->indicate_seq = |
| (preorder_ctrl->indicate_seq + 1) % 4096; |
| return _SUCCESS; |
| } |
| } else { |
| /* temp filter -> means didn't support A-MSDUs in a A-MPDU */ |
| if (preorder_ctrl->enable == false) { |
| preorder_ctrl->indicate_seq = pattrib->seq_num; |
| retval = amsdu_to_msdu(padapter, prframe); |
| |
| preorder_ctrl->indicate_seq = |
| (preorder_ctrl->indicate_seq + 1) % 4096; |
| return retval; |
| } |
| } |
| |
| spin_lock_bh(&ppending_recvframe_queue->lock); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("recv_indicatepkt_reorder: indicate =%d seq =%d\n", |
| preorder_ctrl->indicate_seq, pattrib->seq_num)); |
| |
| /* s2. check if winstart_b(indicate_seq) needs to been updated */ |
| if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) { |
| goto _err_exit; |
| } |
| |
| /* s3. Insert all packet into Reorder Queue to maintain its ordering. */ |
| if (!enqueue_reorder_recvframe23a(preorder_ctrl, prframe)) { |
| goto _err_exit; |
| } |
| |
| /* s4. */ |
| /* Indication process. */ |
| /* After Packet dropping and Sliding Window shifting as above, |
| we can now just indicate the packets */ |
| /* with the SeqNum smaller than latest WinStart and buffer |
| other packets. */ |
| /* */ |
| /* For Rx Reorder condition: */ |
| /* 1. All packets with SeqNum smaller than WinStart => Indicate */ |
| /* 2. All packets with SeqNum larger than or equal to WinStart => |
| Buffer it. */ |
| /* */ |
| |
| if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) { |
| mod_timer(&preorder_ctrl->reordering_ctrl_timer, |
| jiffies + msecs_to_jiffies(REORDER_WAIT_TIME)); |
| spin_unlock_bh(&ppending_recvframe_queue->lock); |
| } else { |
| spin_unlock_bh(&ppending_recvframe_queue->lock); |
| del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); |
| } |
| return _SUCCESS; |
| |
| _err_exit: |
| |
| spin_unlock_bh(&ppending_recvframe_queue->lock); |
| return _FAIL; |
| } |
| |
| void rtw_reordering_ctrl_timeout_handler23a(unsigned long pcontext) |
| { |
| struct recv_reorder_ctrl *preorder_ctrl; |
| struct rtw_adapter *padapter; |
| struct rtw_queue *ppending_recvframe_queue; |
| |
| preorder_ctrl = (struct recv_reorder_ctrl *)pcontext; |
| padapter = preorder_ctrl->padapter; |
| ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; |
| |
| if (padapter->bDriverStopped || padapter->bSurpriseRemoved) { |
| return; |
| } |
| |
| /* DBG_8723A("+rtw_reordering_ctrl_timeout_handler23a() =>\n"); */ |
| |
| spin_lock_bh(&ppending_recvframe_queue->lock); |
| |
| if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true) { |
| mod_timer(&preorder_ctrl->reordering_ctrl_timer, |
| jiffies + msecs_to_jiffies(REORDER_WAIT_TIME)); |
| } |
| |
| spin_unlock_bh(&ppending_recvframe_queue->lock); |
| } |
| |
| int process_recv_indicatepkts(struct rtw_adapter *padapter, |
| struct recv_frame *prframe); |
| int process_recv_indicatepkts(struct rtw_adapter *padapter, |
| struct recv_frame *prframe) |
| { |
| int retval = _SUCCESS; |
| /* struct recv_priv *precvpriv = &padapter->recvpriv; */ |
| /* struct rx_pkt_attrib *pattrib = &prframe->attrib; */ |
| struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
| struct ht_priv *phtpriv = &pmlmepriv->htpriv; |
| |
| if (phtpriv->ht_option == true) { /* B/G/N Mode */ |
| /* prframe->preorder_ctrl = &precvpriv->recvreorder_ctrl[pattrib->priority]; */ |
| |
| /* including perform A-MPDU Rx Ordering Buffer Control */ |
| if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) { |
| if ((padapter->bDriverStopped == false) && |
| (padapter->bSurpriseRemoved == false)) { |
| retval = _FAIL; |
| return retval; |
| } |
| } |
| } else { /* B/G mode */ |
| retval = wlanhdr_to_ethhdr(prframe); |
| if (retval != _SUCCESS) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("wlanhdr_to_ethhdr: drop pkt\n")); |
| 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_indicatepkt23a(padapter, prframe); |
| } else { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("@@@@ process_recv_indicatepkts- " |
| "recv_func free_indicatepkt\n")); |
| |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, |
| ("recv_func:bDriverStopped(%d) OR " |
| "bSurpriseRemoved(%d)", |
| padapter->bDriverStopped, |
| padapter->bSurpriseRemoved)); |
| retval = _FAIL; |
| return retval; |
| } |
| |
| } |
| |
| return retval; |
| } |
| |
| static int recv_func_prehandle(struct rtw_adapter *padapter, |
| struct recv_frame *rframe) |
| { |
| int ret = _SUCCESS; |
| |
| /* 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_recvframe23a(rframe); |
| goto exit; |
| } |
| |
| exit: |
| return ret; |
| } |
| |
| static int recv_func_posthandle(struct rtw_adapter *padapter, |
| struct recv_frame *prframe) |
| { |
| int ret = _SUCCESS; |
| struct recv_frame *orig_prframe = prframe; |
| struct recv_priv *precvpriv = &padapter->recvpriv; |
| |
| /* 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")); |
| ret = _FAIL; |
| goto _recv_data_drop; |
| } |
| |
| prframe = recvframe_chk_defrag23a(padapter, prframe); |
| if (!prframe) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("recvframe_chk_defrag23a: drop pkt\n")); |
| goto _recv_data_drop; |
| } |
| |
| /* |
| * Pull off crypto headers |
| */ |
| if (prframe->attrib.iv_len > 0) { |
| skb_pull(prframe->pkt, prframe->attrib.iv_len); |
| } |
| |
| if (prframe->attrib.icv_len > 0) { |
| skb_trim(prframe->pkt, |
| prframe->pkt->len - prframe->attrib.icv_len); |
| } |
| |
| prframe = portctrl(padapter, prframe); |
| if (!prframe) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("portctrl: drop pkt\n")); |
| ret = _FAIL; |
| goto _recv_data_drop; |
| } |
| |
| count_rx_stats(padapter, prframe, NULL); |
| |
| ret = process_recv_indicatepkts(padapter, prframe); |
| if (ret != _SUCCESS) { |
| RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
| ("recv_func: process_recv_indicatepkts fail!\n")); |
| rtw_free_recvframe23a(orig_prframe);/* free this recv_frame */ |
| goto _recv_data_drop; |
| } |
| return ret; |
| |
| _recv_data_drop: |
| precvpriv->rx_drop++; |
| return ret; |
| } |
| |
| int rtw_recv_entry23a(struct recv_frame *rframe) |
| { |
| int ret, r; |
| struct rtw_adapter *padapter = rframe->adapter; |
| struct rx_pkt_attrib *prxattrib = &rframe->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) { |
| struct recv_frame *pending_frame; |
| |
| while ((pending_frame = rtw_alloc_recvframe23a(&padapter->recvpriv.uc_swdec_pending_queue))) { |
| r = recv_func_posthandle(padapter, pending_frame); |
| if (r == _SUCCESS) |
| DBG_8723A("%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_multicast_ether_addr(prxattrib->ra) && |
| prxattrib->encrypt > 0 && |
| (prxattrib->bdecrypted == 0) && |
| !is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) && |
| !psecuritypriv->busetkipkey) { |
| rtw_enqueue_recvframe23a(rframe, &padapter->recvpriv.uc_swdec_pending_queue); |
| DBG_8723A("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); |
| goto exit; |
| } |
| |
| ret = recv_func_posthandle(padapter, rframe); |
| |
| recvpriv->rx_pkts++; |
| } |
| |
| exit: |
| return ret; |
| } |
| |
| void rtw_signal_stat_timer_hdl23a(unsigned long data) |
| { |
| struct rtw_adapter *adapter = (struct rtw_adapter *)data; |
| struct recv_priv *recvpriv = &adapter->recvpriv; |
| |
| u32 tmp_s, tmp_q; |
| u8 avg_signal_strength = 0; |
| u8 avg_signal_qual = 0; |
| u32 num_signal_strength = 0; |
| u32 num_signal_qual = 0; |
| u8 _alpha = 3; /* this value is based on converging_constant = 5000 */ |
| /* and sampling_interval = 1000 */ |
| |
| if (adapter->recvpriv.is_signal_dbg) { |
| /* update the user specific value, signal_strength_dbg, */ |
| /* to signal_strength, rssi */ |
| adapter->recvpriv.signal_strength = |
| adapter->recvpriv.signal_strength_dbg; |
| adapter->recvpriv.rssi = |
| (s8)translate_percentage_to_dbm((u8)adapter->recvpriv.signal_strength_dbg); |
| } else { |
| if (recvpriv->signal_strength_data.update_req == 0) { |
| /* update_req is clear, means we got rx */ |
| avg_signal_strength = |
| recvpriv->signal_strength_data.avg_val; |
| num_signal_strength = |
| recvpriv->signal_strength_data.total_num; |
| /* after avg_vals are acquired, we can re-stat */ |
| /* the signal values */ |
| recvpriv->signal_strength_data.update_req = 1; |
| } |
| |
| if (recvpriv->signal_qual_data.update_req == 0) { |
| /* update_req is clear, means we got rx */ |
| avg_signal_qual = recvpriv->signal_qual_data.avg_val; |
| num_signal_qual = recvpriv->signal_qual_data.total_num; |
| /* after avg_vals are acquired, 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)) { |
| 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; |
| |
| DBG_8723A("%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 |
| ); |
| } |
| } |
| rtw_set_signal_stat_timer(recvpriv); |
| } |