![navin patidar](/assets/img/avatar_default.png)
rtw_os_recv_resource_free() has empty defination, so we can remove it. Signed-off-by: navin patidar <navin.patidar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2215 lines
63 KiB
C
2215 lines
63 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#define _RTW_RECV_C_
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#include <osdep_service.h>
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#include <drv_types.h>
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#include <recv_osdep.h>
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#include <mlme_osdep.h>
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#include <usb_ops.h>
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#include <wifi.h>
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#include <linux/vmalloc.h>
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#define ETHERNET_HEADER_SIZE 14 /* Ethernet Header Length */
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#define LLC_HEADER_SIZE 6 /* LLC Header Length */
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static u8 SNAP_ETH_TYPE_IPX[2] = {0x81, 0x37};
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static u8 SNAP_ETH_TYPE_APPLETALK_AARP[2] = {0x80, 0xf3};
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/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
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static u8 rtw_bridge_tunnel_header[] = {
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0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8
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};
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static u8 rtw_rfc1042_header[] = {
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0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
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};
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void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS);
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void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
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{
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_rtw_memset((u8 *)psta_recvpriv, 0, sizeof (struct sta_recv_priv));
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spin_lock_init(&psta_recvpriv->lock);
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_rtw_init_queue(&psta_recvpriv->defrag_q);
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}
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int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
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{
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int i;
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struct recv_frame *precvframe;
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int res = _SUCCESS;
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_rtw_init_queue(&precvpriv->free_recv_queue);
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_rtw_init_queue(&precvpriv->recv_pending_queue);
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_rtw_init_queue(&precvpriv->uc_swdec_pending_queue);
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precvpriv->adapter = padapter;
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precvpriv->free_recvframe_cnt = NR_RECVFRAME;
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precvpriv->pallocated_frame_buf = vzalloc(NR_RECVFRAME * sizeof(struct recv_frame) + RXFRAME_ALIGN_SZ);
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if (precvpriv->pallocated_frame_buf == NULL) {
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res = _FAIL;
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goto exit;
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}
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precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
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precvframe = (struct recv_frame *)precvpriv->precv_frame_buf;
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for (i = 0; i < NR_RECVFRAME; i++) {
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_rtw_init_listhead(&(precvframe->list));
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rtw_list_insert_tail(&(precvframe->list),
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&(precvpriv->free_recv_queue.queue));
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res = rtw_os_recv_resource_alloc(padapter, precvframe);
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precvframe->len = 0;
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precvframe->adapter = padapter;
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precvframe++;
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}
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precvpriv->rx_pending_cnt = 1;
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res = rtw_hal_init_recv_priv(padapter);
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_init_timer(&precvpriv->signal_stat_timer, padapter->pnetdev, RTW_TIMER_HDL_NAME(signal_stat), padapter);
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precvpriv->signal_stat_sampling_interval = 1000; /* ms */
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rtw_set_signal_stat_timer(precvpriv);
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exit:
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return res;
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}
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void _rtw_free_recv_priv (struct recv_priv *precvpriv)
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{
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struct adapter *padapter = precvpriv->adapter;
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rtw_free_uc_swdec_pending_queue(padapter);
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if (precvpriv->pallocated_frame_buf) {
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vfree(precvpriv->pallocated_frame_buf);
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}
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rtw_hal_free_recv_priv(padapter);
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}
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struct recv_frame *_rtw_alloc_recvframe (struct __queue *pfree_recv_queue)
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{
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struct recv_frame *hdr;
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struct list_head *plist, *phead;
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struct adapter *padapter;
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struct recv_priv *precvpriv;
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if (_rtw_queue_empty(pfree_recv_queue)) {
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hdr = NULL;
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} else {
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phead = get_list_head(pfree_recv_queue);
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plist = phead->next;
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hdr = container_of(plist, struct recv_frame, list);
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rtw_list_delete(&hdr->list);
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padapter = hdr->adapter;
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if (padapter != NULL) {
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precvpriv = &padapter->recvpriv;
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if (pfree_recv_queue == &precvpriv->free_recv_queue)
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precvpriv->free_recvframe_cnt--;
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}
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}
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return (struct recv_frame *)hdr;
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}
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struct recv_frame *rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
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{
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struct recv_frame *precvframe;
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spin_lock_bh(&pfree_recv_queue->lock);
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precvframe = _rtw_alloc_recvframe(pfree_recv_queue);
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spin_unlock_bh(&pfree_recv_queue->lock);
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return precvframe;
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}
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void rtw_init_recvframe(struct recv_frame *precvframe, struct recv_priv *precvpriv)
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{
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/* Perry: This can be removed */
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_rtw_init_listhead(&precvframe->list);
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precvframe->len = 0;
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}
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int rtw_free_recvframe(struct recv_frame *precvframe,
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struct __queue *pfree_recv_queue)
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{
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struct adapter *padapter;
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struct recv_priv *precvpriv;
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if (!precvframe)
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return _FAIL;
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padapter = precvframe->adapter;
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precvpriv = &padapter->recvpriv;
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if (precvframe->pkt) {
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dev_kfree_skb_any(precvframe->pkt);/* free skb by driver */
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precvframe->pkt = NULL;
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}
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spin_lock_bh(&pfree_recv_queue->lock);
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rtw_list_delete(&(precvframe->list));
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precvframe->len = 0;
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rtw_list_insert_tail(&(precvframe->list), get_list_head(pfree_recv_queue));
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if (padapter != NULL) {
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if (pfree_recv_queue == &precvpriv->free_recv_queue)
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precvpriv->free_recvframe_cnt++;
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}
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spin_unlock_bh(&pfree_recv_queue->lock);
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return _SUCCESS;
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}
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int _rtw_enqueue_recvframe(struct recv_frame *precvframe, struct __queue *queue)
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{
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struct adapter *padapter = precvframe->adapter;
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struct recv_priv *precvpriv = &padapter->recvpriv;
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rtw_list_delete(&(precvframe->list));
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rtw_list_insert_tail(&(precvframe->list), get_list_head(queue));
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if (padapter != NULL) {
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if (queue == &precvpriv->free_recv_queue)
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precvpriv->free_recvframe_cnt++;
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}
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return _SUCCESS;
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}
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int rtw_enqueue_recvframe(struct recv_frame *precvframe, struct __queue *queue)
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{
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int ret;
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spin_lock_bh(&queue->lock);
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ret = _rtw_enqueue_recvframe(precvframe, queue);
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spin_unlock_bh(&queue->lock);
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return ret;
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}
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/*
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caller : defrag ; recvframe_chk_defrag in recv_thread (passive)
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pframequeue: defrag_queue : will be accessed in recv_thread (passive)
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using spinlock to protect
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*/
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void rtw_free_recvframe_queue(struct __queue *pframequeue, struct __queue *pfree_recv_queue)
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{
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struct recv_frame *hdr;
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struct list_head *plist, *phead;
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spin_lock(&pframequeue->lock);
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phead = get_list_head(pframequeue);
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plist = phead->next;
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while (rtw_end_of_queue_search(phead, plist) == false) {
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hdr = container_of(plist, struct recv_frame, list);
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plist = plist->next;
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rtw_free_recvframe((struct recv_frame *)hdr, pfree_recv_queue);
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}
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spin_unlock(&pframequeue->lock);
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}
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u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter)
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{
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u32 cnt = 0;
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struct recv_frame *pending_frame;
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while ((pending_frame = rtw_alloc_recvframe(&adapter->recvpriv.uc_swdec_pending_queue))) {
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rtw_free_recvframe(pending_frame, &adapter->recvpriv.free_recv_queue);
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DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__);
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cnt++;
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}
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return cnt;
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}
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static int recvframe_chkmic(struct adapter *adapter,
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struct recv_frame *precvframe)
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{
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int i, res = _SUCCESS;
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u32 datalen;
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u8 miccode[8];
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u8 bmic_err = false, brpt_micerror = true;
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u8 *pframe, *payload, *pframemic;
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u8 *mickey;
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struct sta_info *stainfo;
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struct rx_pkt_attrib *prxattrib = &precvframe->attrib;
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struct security_priv *psecuritypriv = &adapter->securitypriv;
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struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
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struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
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stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
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if (prxattrib->encrypt == _TKIP_) {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt==_TKIP_\n"));
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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",
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prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
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/* calculate mic code */
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if (stainfo != NULL) {
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if (IS_MCAST(prxattrib->ra)) {
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if (!psecuritypriv) {
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res = _FAIL;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
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DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
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goto exit;
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}
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mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
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RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
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} else {
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mickey = &stainfo->dot11tkiprxmickey.skey[0];
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));
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}
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/* icv_len included the mic code */
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datalen = precvframe->len-prxattrib->hdrlen -
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prxattrib->iv_len-prxattrib->icv_len-8;
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pframe = precvframe->rx_data;
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payload = pframe+prxattrib->hdrlen+prxattrib->iv_len;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n", prxattrib->iv_len, prxattrib->icv_len));
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rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0],
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(unsigned char)prxattrib->priority); /* care the length of the data */
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pframemic = payload+datalen;
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bmic_err = false;
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for (i = 0; i < 8; i++) {
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if (miccode[i] != *(pframemic+i)) {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("recvframe_chkmic:miccode[%d](%02x)!=*(pframemic+%d)(%02x) ",
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i, miccode[i], i, *(pframemic+i)));
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bmic_err = true;
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}
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}
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if (bmic_err) {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("\n *(pframemic-8)-*(pframemic-1)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
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*(pframemic-8), *(pframemic-7), *(pframemic-6),
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*(pframemic-5), *(pframemic-4), *(pframemic-3),
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*(pframemic-2), *(pframemic-1)));
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("\n *(pframemic-16)-*(pframemic-9)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
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*(pframemic-16), *(pframemic-15), *(pframemic-14),
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*(pframemic-13), *(pframemic-12), *(pframemic-11),
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*(pframemic-10), *(pframemic-9)));
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{
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uint i;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("\n ======demp packet (len=%d)======\n",
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precvframe->len));
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for (i = 0; i < precvframe->len; i += 8) {
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RT_TRACE(_module_rtl871x_recv_c_,
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_drv_err_,
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("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x",
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*(precvframe->rx_data+i),
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*(precvframe->rx_data+i+1),
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*(precvframe->rx_data+i+2),
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*(precvframe->rx_data+i+3),
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*(precvframe->rx_data+i+4),
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*(precvframe->rx_data+i+5),
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*(precvframe->rx_data+i+6),
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*(precvframe->rx_data+i+7)));
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}
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RT_TRACE(_module_rtl871x_recv_c_,
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_drv_err_,
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("\n ====== demp packet end [len=%d]======\n",
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precvframe->len));
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RT_TRACE(_module_rtl871x_recv_c_,
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_drv_err_,
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("\n hrdlen=%d,\n",
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prxattrib->hdrlen));
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}
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("ra=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey=%d ",
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prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2],
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prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5], psecuritypriv->binstallGrpkey));
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/* double check key_index for some timing issue , */
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/* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */
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if ((IS_MCAST(prxattrib->ra) == true) && (prxattrib->key_index != pmlmeinfo->key_index))
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brpt_micerror = false;
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if ((prxattrib->bdecrypted) && (brpt_micerror)) {
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rtw_handle_tkip_mic_err(adapter, (u8)IS_MCAST(prxattrib->ra));
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted=%d ", prxattrib->bdecrypted));
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DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted);
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} else {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" mic error :prxattrib->bdecrypted=%d ", prxattrib->bdecrypted));
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DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib->bdecrypted);
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}
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res = _FAIL;
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} else {
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/* mic checked ok */
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if ((!psecuritypriv->bcheck_grpkey) && (IS_MCAST(prxattrib->ra))) {
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psecuritypriv->bcheck_grpkey = true;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("psecuritypriv->bcheck_grpkey = true"));
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}
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}
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} else {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo==NULL!!!\n"));
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}
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recvframe_pull_tail(precvframe, 8);
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}
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exit:
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return res;
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}
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/* decrypt and set the ivlen, icvlen of the recv_frame */
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static struct recv_frame *decryptor(struct adapter *padapter,
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struct recv_frame *precv_frame)
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{
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struct rx_pkt_attrib *prxattrib = &precv_frame->attrib;
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struct security_priv *psecuritypriv = &padapter->securitypriv;
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struct recv_frame *return_packet = precv_frame;
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u32 res = _SUCCESS;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("prxstat->decrypted=%x prxattrib->encrypt=0x%03x\n", prxattrib->bdecrypted, prxattrib->encrypt));
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if (prxattrib->encrypt > 0) {
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u8 *iv = precv_frame->rx_data+prxattrib->hdrlen;
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prxattrib->key_index = (((iv[3])>>6)&0x3);
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if (prxattrib->key_index > WEP_KEYS) {
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DBG_88E("prxattrib->key_index(%d)>WEP_KEYS\n", prxattrib->key_index);
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switch (prxattrib->encrypt) {
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case _WEP40_:
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case _WEP104_:
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prxattrib->key_index = psecuritypriv->dot11PrivacyKeyIndex;
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break;
|
|
case _TKIP_:
|
|
case _AES_:
|
|
default:
|
|
prxattrib->key_index = psecuritypriv->dot118021XGrpKeyid;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0) || (psecuritypriv->sw_decrypt))) {
|
|
psecuritypriv->hw_decrypted = false;
|
|
|
|
switch (prxattrib->encrypt) {
|
|
case _WEP40_:
|
|
case _WEP104_:
|
|
rtw_wep_decrypt(padapter, (u8 *)precv_frame);
|
|
break;
|
|
case _TKIP_:
|
|
res = rtw_tkip_decrypt(padapter, (u8 *)precv_frame);
|
|
break;
|
|
case _AES_:
|
|
res = rtw_aes_decrypt(padapter, (u8 *)precv_frame);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 &&
|
|
(psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_))
|
|
psecuritypriv->hw_decrypted = true;
|
|
|
|
if (res == _FAIL) {
|
|
rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
|
|
return_packet = NULL;
|
|
}
|
|
|
|
|
|
return return_packet;
|
|
}
|
|
|
|
/* set the security information in the recv_frame */
|
|
static struct recv_frame *portctrl(struct 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 = 0x888e;/* for Funia BD's WPA issue */
|
|
struct rx_pkt_attrib *pattrib;
|
|
__be16 be_tmp;
|
|
|
|
|
|
pstapriv = &adapter->stapriv;
|
|
|
|
auth_alg = adapter->securitypriv.dot11AuthAlgrthm;
|
|
|
|
ptr = precv_frame->rx_data;
|
|
pfhdr = precv_frame;
|
|
pattrib = &pfhdr->attrib;
|
|
psta_addr = pattrib->ta;
|
|
psta = rtw_get_stainfo(pstapriv, psta_addr);
|
|
|
|
prtnframe = NULL;
|
|
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm=%d\n", adapter->securitypriv.dot11AuthAlgrthm));
|
|
|
|
if (auth_alg == 2) {
|
|
/* get ether_type */
|
|
ptr = ptr + pfhdr->attrib.hdrlen + LLC_HEADER_SIZE;
|
|
memcpy(&be_tmp, ptr, 2);
|
|
ether_type = ntohs(be_tmp);
|
|
|
|
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_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->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;
|
|
}
|
|
|
|
static 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;
|
|
}
|
|
|
|
static void process_pwrbit_data(struct adapter *padapter,
|
|
struct recv_frame *precv_frame)
|
|
{
|
|
#ifdef CONFIG_88EU_AP_MODE
|
|
unsigned char pwrbit;
|
|
u8 *ptr = precv_frame->rx_data;
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->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))
|
|
stop_sta_xmit(padapter, psta);
|
|
} else {
|
|
if (psta->state & WIFI_SLEEP_STATE)
|
|
wakeup_sta_to_xmit(padapter, psta);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
static void process_wmmps_data(struct adapter *padapter,
|
|
struct recv_frame *precv_frame)
|
|
{
|
|
#ifdef CONFIG_88EU_AP_MODE
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
|
|
struct sta_priv *pstapriv = &padapter->stapriv;
|
|
struct sta_info *psta = NULL;
|
|
|
|
psta = rtw_get_stainfo(pstapriv, pattrib->src);
|
|
|
|
if (!psta)
|
|
return;
|
|
|
|
if (!psta->qos_option)
|
|
return;
|
|
|
|
if (!(psta->qos_info&0xf))
|
|
return;
|
|
|
|
if (psta->state&WIFI_SLEEP_STATE) {
|
|
u8 wmmps_ac = 0;
|
|
|
|
switch (pattrib->priority) {
|
|
case 1:
|
|
case 2:
|
|
wmmps_ac = psta->uapsd_bk&BIT(1);
|
|
break;
|
|
case 4:
|
|
case 5:
|
|
wmmps_ac = psta->uapsd_vi&BIT(1);
|
|
break;
|
|
case 6:
|
|
case 7:
|
|
wmmps_ac = psta->uapsd_vo&BIT(1);
|
|
break;
|
|
case 0:
|
|
case 3:
|
|
default:
|
|
wmmps_ac = psta->uapsd_be&BIT(1);
|
|
break;
|
|
}
|
|
|
|
if (wmmps_ac) {
|
|
if (psta->sleepq_ac_len > 0) {
|
|
/* process received triggered frame */
|
|
xmit_delivery_enabled_frames(padapter, psta);
|
|
} else {
|
|
/* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */
|
|
issue_qos_nulldata(padapter, psta->hwaddr, (u16)pattrib->priority, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|
|
}
|
|
|
|
static void count_rx_stats(struct 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->len;
|
|
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->psta;
|
|
|
|
if (psta) {
|
|
pstats = &psta->sta_stats;
|
|
|
|
pstats->rx_data_pkts++;
|
|
pstats->rx_bytes += sz;
|
|
}
|
|
}
|
|
|
|
int sta2sta_data_frame(
|
|
struct adapter *adapter,
|
|
struct recv_frame *precv_frame,
|
|
struct sta_info **psta
|
|
);
|
|
|
|
int sta2sta_data_frame(struct adapter *adapter, struct recv_frame *precv_frame,
|
|
struct sta_info **psta)
|
|
{
|
|
u8 *ptr = precv_frame->rx_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_MCAST(pattrib->dst);
|
|
|
|
|
|
if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true) ||
|
|
(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true)) {
|
|
/* filter packets that SA is myself or multicast or broadcast */
|
|
if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA==myself\n"));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
if ((memcmp(myhwaddr, pattrib->dst, ETH_ALEN)) && (!bmcast)) {
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
|
|
!memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
|
|
memcmp(pattrib->bssid, mybssid, ETH_ALEN)) {
|
|
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 (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)) {
|
|
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 (memcmp(pattrib->bssid, pattrib->dst, ETH_ALEN)) {
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
sta_addr = pattrib->src;
|
|
}
|
|
} else if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) {
|
|
memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
|
|
memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
|
|
|
|
sta_addr = mybssid;
|
|
} else {
|
|
ret = _FAIL;
|
|
}
|
|
|
|
if (bmcast)
|
|
*psta = rtw_get_bcmc_stainfo(adapter);
|
|
else
|
|
*psta = rtw_get_stainfo(pstapriv, sta_addr); /* get ap_info */
|
|
|
|
if (*psta == NULL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
|
|
if (adapter->registrypriv.mp_mode == 1) {
|
|
if (check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)
|
|
adapter->mppriv.rx_pktloss++;
|
|
}
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
exit:
|
|
return ret;
|
|
}
|
|
|
|
static int ap2sta_data_frame (
|
|
struct adapter *adapter,
|
|
struct recv_frame *precv_frame,
|
|
struct sta_info **psta)
|
|
{
|
|
u8 *ptr = precv_frame->rx_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_MCAST(pattrib->dst);
|
|
|
|
|
|
if ((check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) &&
|
|
(check_fwstate(pmlmepriv, _FW_LINKED) == true ||
|
|
check_fwstate(pmlmepriv, _FW_UNDER_LINKING))) {
|
|
/* filter packets that SA is myself or multicast or broadcast */
|
|
if (!memcmp(myhwaddr, pattrib->src, ETH_ALEN)) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" SA==myself\n"));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
/* da should be for me */
|
|
if ((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)));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
/* check BSSID */
|
|
if (!memcmp(pattrib->bssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
|
|
!memcmp(mybssid, "\x0\x0\x0\x0\x0\x0", ETH_ALEN) ||
|
|
(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)));
|
|
|
|
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"));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
/* if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { */
|
|
/* */
|
|
|
|
if (GetFrameSubType(ptr) & BIT(6)) {
|
|
/* No data, will not indicate to upper layer, temporily count it here */
|
|
count_rx_stats(adapter, precv_frame, *psta);
|
|
ret = RTW_RX_HANDLED;
|
|
goto exit;
|
|
}
|
|
} else if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true) &&
|
|
(check_fwstate(pmlmepriv, _FW_LINKED) == true)) {
|
|
memcpy(pattrib->dst, GetAddr1Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->src, GetAddr2Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->bssid, GetAddr3Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->ra, pattrib->dst, ETH_ALEN);
|
|
memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
|
|
|
|
/* */
|
|
memcpy(pattrib->bssid, mybssid, ETH_ALEN);
|
|
|
|
*psta = rtw_get_stainfo(pstapriv, pattrib->bssid); /* get sta_info */
|
|
if (*psta == NULL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("can't get psta under MP_MODE ; drop pkt\n"));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
|
|
/* Special case */
|
|
ret = RTW_RX_HANDLED;
|
|
goto exit;
|
|
} else {
|
|
if (!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;
|
|
}
|
|
|
|
exit:
|
|
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int sta2ap_data_frame(struct adapter *adapter,
|
|
struct recv_frame *precv_frame,
|
|
struct sta_info **psta)
|
|
{
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
|
|
struct sta_priv *pstapriv = &adapter->stapriv;
|
|
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
|
|
u8 *ptr = precv_frame->rx_data;
|
|
unsigned char *mybssid = get_bssid(pmlmepriv);
|
|
int ret = _SUCCESS;
|
|
|
|
|
|
if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
|
|
/* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */
|
|
if (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 (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:
|
|
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int validate_recv_ctrl_frame(struct adapter *padapter,
|
|
struct recv_frame *precv_frame)
|
|
{
|
|
#ifdef CONFIG_88EU_AP_MODE
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
|
|
struct sta_priv *pstapriv = &padapter->stapriv;
|
|
u8 *pframe = precv_frame->rx_data;
|
|
|
|
if (GetFrameType(pframe) != WIFI_CTRL_TYPE)
|
|
return _FAIL;
|
|
|
|
/* receive the frames that ra(a1) is my address */
|
|
if (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))) {
|
|
struct list_head *xmitframe_plist, *xmitframe_phead;
|
|
struct xmit_frame *pxmitframe = NULL;
|
|
|
|
spin_lock_bh(&psta->sleep_q.lock);
|
|
|
|
xmitframe_phead = get_list_head(&psta->sleep_q);
|
|
xmitframe_plist = xmitframe_phead->next;
|
|
|
|
if ((rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) == false) {
|
|
pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
|
|
|
|
xmitframe_plist = xmitframe_plist->next;
|
|
|
|
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;
|
|
|
|
spin_unlock_bh(&psta->sleep_q.lock);
|
|
if (rtw_hal_xmit(padapter, pxmitframe) == true)
|
|
rtw_os_xmit_complete(padapter, pxmitframe);
|
|
spin_lock_bh(&psta->sleep_q.lock);
|
|
|
|
if (psta->sleepq_len == 0) {
|
|
pstapriv->tim_bitmap &= ~BIT(psta->aid);
|
|
|
|
/* update BCN for TIM IE */
|
|
/* update_BCNTIM(padapter); */
|
|
update_beacon(padapter, _TIM_IE_, NULL, false);
|
|
}
|
|
} else {
|
|
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);
|
|
|
|
/* update BCN for TIM IE */
|
|
/* update_BCNTIM(padapter); */
|
|
update_beacon(padapter, _TIM_IE_, NULL, false);
|
|
}
|
|
}
|
|
|
|
spin_unlock_bh(&psta->sleep_q.lock);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
return _FAIL;
|
|
}
|
|
|
|
struct recv_frame *recvframe_chk_defrag(struct adapter *padapter,
|
|
struct recv_frame *precv_frame);
|
|
|
|
static int validate_recv_mgnt_frame(struct adapter *padapter,
|
|
struct recv_frame *precv_frame)
|
|
{
|
|
struct sta_info *psta;
|
|
|
|
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 */
|
|
psta = rtw_get_stainfo(&padapter->stapriv,
|
|
GetAddr2Ptr(precv_frame->rx_data));
|
|
if (psta) {
|
|
psta->sta_stats.rx_mgnt_pkts++;
|
|
if (GetFrameSubType(precv_frame->rx_data) == WIFI_BEACON) {
|
|
psta->sta_stats.rx_beacon_pkts++;
|
|
} else if (GetFrameSubType(precv_frame->rx_data) == WIFI_PROBEREQ) {
|
|
psta->sta_stats.rx_probereq_pkts++;
|
|
} else if (GetFrameSubType(precv_frame->rx_data) == WIFI_PROBERSP) {
|
|
if (!memcmp(padapter->eeprompriv.mac_addr,
|
|
GetAddr1Ptr(precv_frame->rx_data), ETH_ALEN))
|
|
psta->sta_stats.rx_probersp_pkts++;
|
|
else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame->rx_data)) ||
|
|
is_multicast_mac_addr(GetAddr1Ptr(precv_frame->rx_data)))
|
|
psta->sta_stats.rx_probersp_bm_pkts++;
|
|
else
|
|
psta->sta_stats.rx_probersp_uo_pkts++;
|
|
}
|
|
}
|
|
|
|
mgt_dispatcher(padapter, precv_frame);
|
|
|
|
return _SUCCESS;
|
|
}
|
|
|
|
static int validate_recv_data_frame(struct adapter *adapter,
|
|
struct recv_frame *precv_frame)
|
|
{
|
|
u8 bretry;
|
|
u8 *psa, *pda, *pbssid;
|
|
struct sta_info *psta = NULL;
|
|
u8 *ptr = precv_frame->rx_data;
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
|
|
struct security_priv *psecuritypriv = &adapter->securitypriv;
|
|
int ret = _SUCCESS;
|
|
|
|
|
|
bretry = GetRetry(ptr);
|
|
pda = get_da(ptr);
|
|
psa = get_sa(ptr);
|
|
pbssid = get_hdr_bssid(ptr);
|
|
|
|
if (pbssid == NULL) {
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
memcpy(pattrib->dst, pda, ETH_ALEN);
|
|
memcpy(pattrib->src, psa, ETH_ALEN);
|
|
|
|
memcpy(pattrib->bssid, pbssid, ETH_ALEN);
|
|
|
|
switch (pattrib->to_fr_ds) {
|
|
case 0:
|
|
memcpy(pattrib->ra, pda, ETH_ALEN);
|
|
memcpy(pattrib->ta, psa, ETH_ALEN);
|
|
ret = sta2sta_data_frame(adapter, precv_frame, &psta);
|
|
break;
|
|
case 1:
|
|
memcpy(pattrib->ra, pda, ETH_ALEN);
|
|
memcpy(pattrib->ta, pbssid, ETH_ALEN);
|
|
ret = ap2sta_data_frame(adapter, precv_frame, &psta);
|
|
break;
|
|
case 2:
|
|
memcpy(pattrib->ra, pbssid, ETH_ALEN);
|
|
memcpy(pattrib->ta, psa, ETH_ALEN);
|
|
ret = sta2ap_data_frame(adapter, precv_frame, &psta);
|
|
break;
|
|
case 3:
|
|
memcpy(pattrib->ra, GetAddr1Ptr(ptr), ETH_ALEN);
|
|
memcpy(pattrib->ta, GetAddr2Ptr(ptr), ETH_ALEN);
|
|
ret = _FAIL;
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, (" case 3\n"));
|
|
break;
|
|
default:
|
|
ret = _FAIL;
|
|
break;
|
|
}
|
|
|
|
if (ret == _FAIL) {
|
|
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"));
|
|
ret = _FAIL;
|
|
goto exit;
|
|
}
|
|
|
|
/* psta->rssi = prxcmd->rssi; */
|
|
/* psta->signal_quality = prxcmd->sq; */
|
|
precv_frame->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->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_MCAST(pattrib->ra(0x%02x))=%d^^^^^^^^^^^^^^^6\n", pattrib->ra[0], IS_MCAST(pattrib->ra)));
|
|
|
|
GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, IS_MCAST(pattrib->ra));
|
|
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt=%d\n", pattrib->encrypt));
|
|
|
|
SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
|
|
} else {
|
|
pattrib->encrypt = 0;
|
|
pattrib->iv_len = 0;
|
|
pattrib->icv_len = 0;
|
|
}
|
|
|
|
exit:
|
|
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int validate_recv_frame(struct 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;
|
|
u8 bDumpRxPkt;
|
|
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
|
|
u8 *ptr = precv_frame->rx_data;
|
|
u8 ver = (unsigned char) (*ptr)&0x3;
|
|
struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
|
|
|
|
|
|
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++;
|
|
}
|
|
|
|
/* 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);
|
|
|
|
/* Dump rx packets */
|
|
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");
|
|
}
|
|
}
|
|
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 */
|
|
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;
|
|
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)
|
|
{
|
|
int rmv_len;
|
|
u16 eth_type, len;
|
|
__be16 be_tmp;
|
|
u8 bsnaphdr;
|
|
u8 *psnap_type;
|
|
struct ieee80211_snap_hdr *psnap;
|
|
|
|
int ret = _SUCCESS;
|
|
struct adapter *adapter = precvframe->adapter;
|
|
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
|
|
u8 *ptr = precvframe->rx_data;
|
|
struct rx_pkt_attrib *pattrib = &precvframe->attrib;
|
|
|
|
if (pattrib->encrypt)
|
|
recvframe_pull_tail(precvframe, pattrib->icv_len);
|
|
|
|
psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
|
|
psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
|
|
/* convert hdr + possible LLC headers into Ethernet header */
|
|
if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
|
|
(!memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2) == false) &&
|
|
(!memcmp(psnap_type, SNAP_ETH_TYPE_APPLETALK_AARP, 2) == false)) ||
|
|
!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->len - rmv_len;
|
|
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
|
|
("\n===pattrib->hdrlen: %x, pattrib->iv_len:%x===\n\n", pattrib->hdrlen, pattrib->iv_len));
|
|
|
|
memcpy(&be_tmp, ptr+rmv_len, 2);
|
|
eth_type = ntohs(be_tmp); /* pattrib->ether_type */
|
|
pattrib->eth_type = eth_type;
|
|
|
|
if ((check_fwstate(pmlmepriv, WIFI_MP_STATE))) {
|
|
ptr += rmv_len;
|
|
*ptr = 0x87;
|
|
*(ptr+1) = 0x12;
|
|
|
|
eth_type = 0x8712;
|
|
/* append rx status for mp test packets */
|
|
ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr)+2)-24);
|
|
memcpy(ptr, get_rxmem(precvframe), 24);
|
|
ptr += 24;
|
|
} else {
|
|
ptr = recvframe_pull(precvframe, (rmv_len-sizeof(struct ethhdr) + (bsnaphdr ? 2 : 0)));
|
|
}
|
|
|
|
memcpy(ptr, pattrib->dst, ETH_ALEN);
|
|
memcpy(ptr+ETH_ALEN, pattrib->src, ETH_ALEN);
|
|
|
|
if (!bsnaphdr) {
|
|
be_tmp = htons(len);
|
|
memcpy(ptr+12, &be_tmp, 2);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* perform defrag */
|
|
static struct recv_frame *recvframe_defrag(struct adapter *adapter,
|
|
struct __queue *defrag_q)
|
|
{
|
|
struct list_head *plist, *phead;
|
|
u8 wlanhdr_offset;
|
|
u8 curfragnum;
|
|
struct recv_frame *pfhdr, *pnfhdr;
|
|
struct recv_frame *prframe, *pnextrframe;
|
|
struct __queue *pfree_recv_queue;
|
|
|
|
|
|
curfragnum = 0;
|
|
pfree_recv_queue = &adapter->recvpriv.free_recv_queue;
|
|
|
|
phead = get_list_head(defrag_q);
|
|
plist = phead->next;
|
|
pfhdr = container_of(plist, struct recv_frame, list);
|
|
prframe = (struct recv_frame *)pfhdr;
|
|
rtw_list_delete(&(prframe->list));
|
|
|
|
if (curfragnum != pfhdr->attrib.frag_num) {
|
|
/* the first fragment number must be 0 */
|
|
/* free the whole queue */
|
|
rtw_free_recvframe(prframe, pfree_recv_queue);
|
|
rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
curfragnum++;
|
|
|
|
plist = get_list_head(defrag_q);
|
|
|
|
plist = plist->next;
|
|
|
|
while (rtw_end_of_queue_search(phead, plist) == false) {
|
|
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_recvframe(prframe, pfree_recv_queue);
|
|
rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
|
|
return NULL;
|
|
}
|
|
|
|
curfragnum++;
|
|
|
|
/* copy the 2nd~n fragment frame's payload to the first fragment */
|
|
/* get the 2nd~last fragment frame's payload */
|
|
|
|
wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
|
|
|
|
recvframe_pull(pnextrframe, wlanhdr_offset);
|
|
|
|
/* append to first fragment frame's tail (if privacy frame, pull the ICV) */
|
|
recvframe_pull_tail(prframe, pfhdr->attrib.icv_len);
|
|
|
|
/* memcpy */
|
|
memcpy(pfhdr->rx_tail, pnfhdr->rx_data, pnfhdr->len);
|
|
|
|
recvframe_put(prframe, pnfhdr->len);
|
|
|
|
pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
|
|
plist = plist->next;
|
|
}
|
|
|
|
/* free the defrag_q queue and return the prframe */
|
|
rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
|
|
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("Performance defrag!!!!!\n"));
|
|
|
|
|
|
return prframe;
|
|
}
|
|
|
|
/* check if need to defrag, if needed queue the frame to defrag_q */
|
|
struct recv_frame *recvframe_chk_defrag(struct 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 __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_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->attrib.privacy)) {
|
|
/* after defrag we must check tkip mic code */
|
|
if (recvframe_chkmic(padapter, prtnframe) == _FAIL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic(padapter, prtnframe)==_FAIL\n"));
|
|
rtw_free_recvframe(prtnframe, pfree_recv_queue);
|
|
prtnframe = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
return prtnframe;
|
|
}
|
|
|
|
static int amsdu_to_msdu(struct adapter *padapter, struct recv_frame *prframe)
|
|
{
|
|
int a_len, padding_len;
|
|
u16 eth_type, nSubframe_Length;
|
|
u8 nr_subframes, i;
|
|
unsigned char *pdata;
|
|
struct rx_pkt_attrib *pattrib;
|
|
unsigned char *data_ptr;
|
|
struct sk_buff *sub_skb, *subframes[MAX_SUBFRAME_COUNT];
|
|
struct recv_priv *precvpriv = &padapter->recvpriv;
|
|
struct __queue *pfree_recv_queue = &(precvpriv->free_recv_queue);
|
|
int ret = _SUCCESS;
|
|
nr_subframes = 0;
|
|
|
|
pattrib = &prframe->attrib;
|
|
|
|
recvframe_pull(prframe, prframe->attrib.hdrlen);
|
|
|
|
if (prframe->attrib.iv_len > 0)
|
|
recvframe_pull(prframe, prframe->attrib.iv_len);
|
|
|
|
a_len = prframe->len;
|
|
|
|
pdata = prframe->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;
|
|
}
|
|
|
|
/* move the data point to data content */
|
|
pdata += ETH_HLEN;
|
|
a_len -= ETH_HLEN;
|
|
|
|
/* Allocate new skb for releasing to upper layer */
|
|
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);
|
|
memcpy(data_ptr, pdata, nSubframe_Length);
|
|
} else {
|
|
sub_skb = skb_clone(prframe->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;
|
|
}
|
|
}
|
|
|
|
subframes[nr_subframes++] = sub_skb;
|
|
|
|
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; i < nr_subframes; i++) {
|
|
sub_skb = subframes[i];
|
|
/* convert hdr + possible LLC headers into Ethernet header */
|
|
eth_type = RTW_GET_BE16(&sub_skb->data[6]);
|
|
if (sub_skb->len >= 8 &&
|
|
((!memcmp(sub_skb->data, rtw_rfc1042_header, SNAP_SIZE) &&
|
|
eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) ||
|
|
!memcmp(sub_skb->data, rtw_bridge_tunnel_header, SNAP_SIZE))) {
|
|
/* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
|
|
skb_pull(sub_skb, SNAP_SIZE);
|
|
memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN);
|
|
memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN);
|
|
} else {
|
|
__be16 len;
|
|
/* Leave Ethernet header part of hdr and full payload */
|
|
len = htons(sub_skb->len);
|
|
memcpy(skb_push(sub_skb, 2), &len, 2);
|
|
memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->src, ETH_ALEN);
|
|
memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN);
|
|
}
|
|
|
|
/* Indicate the packets to upper layer */
|
|
/* Insert NAT2.5 RX here! */
|
|
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);
|
|
}
|
|
|
|
exit:
|
|
|
|
prframe->len = 0;
|
|
rtw_free_recvframe(prframe, pfree_recv_queue);/* free this recv_frame */
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num)
|
|
{
|
|
u8 wsize = preorder_ctrl->wsize_b;
|
|
u16 wend = (preorder_ctrl->indicate_seq + wsize - 1) & 0xFFF;/* 4096; */
|
|
|
|
/* Rx Reorder initialize condition. */
|
|
if (preorder_ctrl->indicate_seq == 0xFFFF)
|
|
preorder_ctrl->indicate_seq = seq_num;
|
|
|
|
/* 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)) {
|
|
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_recvframe(struct recv_reorder_ctrl *preorder_ctrl,
|
|
struct recv_frame *prframe)
|
|
{
|
|
struct rx_pkt_attrib *pattrib = &prframe->attrib;
|
|
struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
|
|
struct list_head *phead, *plist;
|
|
struct recv_frame *hdr;
|
|
struct rx_pkt_attrib *pnextattrib;
|
|
|
|
phead = get_list_head(ppending_recvframe_queue);
|
|
plist = phead->next;
|
|
|
|
while (rtw_end_of_queue_search(phead, plist) == false) {
|
|
hdr = container_of(plist, struct recv_frame, list);
|
|
pnextattrib = &hdr->attrib;
|
|
|
|
if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
|
|
plist = plist->next;
|
|
else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
|
|
return false;
|
|
else
|
|
break;
|
|
}
|
|
|
|
rtw_list_delete(&(prframe->list));
|
|
|
|
rtw_list_insert_tail(&(prframe->list), plist);
|
|
return true;
|
|
}
|
|
|
|
static int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctrl *preorder_ctrl, int bforced)
|
|
{
|
|
struct list_head *phead, *plist;
|
|
struct recv_frame *prframe;
|
|
struct recv_frame *prhdr;
|
|
struct rx_pkt_attrib *pattrib;
|
|
int bPktInBuf = false;
|
|
struct recv_priv *precvpriv = &padapter->recvpriv;
|
|
struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
|
|
|
|
phead = get_list_head(ppending_recvframe_queue);
|
|
plist = phead->next;
|
|
|
|
/* Handling some condition for forced indicate case. */
|
|
if (bforced) {
|
|
if (rtw_is_list_empty(phead))
|
|
return true;
|
|
|
|
prhdr = container_of(plist, struct recv_frame, list);
|
|
pattrib = &prhdr->attrib;
|
|
preorder_ctrl->indicate_seq = pattrib->seq_num;
|
|
}
|
|
|
|
/* Prepare indication list and indication. */
|
|
/* Check if there is any packet need indicate. */
|
|
while (!rtw_is_list_empty(phead)) {
|
|
prhdr = container_of(plist, struct recv_frame, list);
|
|
prframe = (struct recv_frame *)prhdr;
|
|
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;
|
|
rtw_list_delete(&(prframe->list));
|
|
|
|
if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num))
|
|
preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1) & 0xFFF;
|
|
|
|
/* 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) &&
|
|
(!padapter->bSurpriseRemoved))
|
|
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;
|
|
}
|
|
|
|
static int recv_indicatepkt_reorder(struct adapter *padapter,
|
|
struct recv_frame *prframe)
|
|
{
|
|
int retval = _SUCCESS;
|
|
struct rx_pkt_attrib *pattrib = &prframe->attrib;
|
|
struct recv_reorder_ctrl *preorder_ctrl = prframe->preorder_ctrl;
|
|
struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
|
|
|
|
if (!pattrib->amsdu) {
|
|
/* s1. */
|
|
wlanhdr_to_ethhdr(prframe);
|
|
|
|
if ((pattrib->qos != 1) || (pattrib->eth_type == 0x0806) ||
|
|
(pattrib->ack_policy != 0)) {
|
|
if ((!padapter->bDriverStopped) &&
|
|
(!padapter->bSurpriseRemoved)) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"));
|
|
|
|
rtw_recv_indicatepkt(padapter, prframe);
|
|
return _SUCCESS;
|
|
}
|
|
|
|
return _FAIL;
|
|
}
|
|
|
|
if (!preorder_ctrl->enable) {
|
|
/* indicate this recv_frame */
|
|
preorder_ctrl->indicate_seq = pattrib->seq_num;
|
|
rtw_recv_indicatepkt(padapter, prframe);
|
|
|
|
preorder_ctrl->indicate_seq = (preorder_ctrl->indicate_seq + 1)%4096;
|
|
return _SUCCESS;
|
|
}
|
|
} else if (pattrib->amsdu == 1) { /* temp filter -> means didn't support A-MSDUs in a A-MPDU */
|
|
if (!preorder_ctrl->enable) {
|
|
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)) {
|
|
rtw_recv_indicatepkt(padapter, prframe);
|
|
|
|
spin_unlock_bh(&ppending_recvframe_queue->lock);
|
|
|
|
goto _success_exit;
|
|
}
|
|
|
|
/* s3. Insert all packet into Reorder Queue to maintain its ordering. */
|
|
if (!enqueue_reorder_recvframe(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. */
|
|
/* */
|
|
|
|
/* recv_indicatepkts_in_order(padapter, preorder_ctrl, true); */
|
|
if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false)) {
|
|
_set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
|
|
spin_unlock_bh(&ppending_recvframe_queue->lock);
|
|
} else {
|
|
spin_unlock_bh(&ppending_recvframe_queue->lock);
|
|
del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
|
|
}
|
|
|
|
_success_exit:
|
|
|
|
return _SUCCESS;
|
|
|
|
_err_exit:
|
|
|
|
spin_unlock_bh(&ppending_recvframe_queue->lock);
|
|
|
|
return _FAIL;
|
|
}
|
|
|
|
void rtw_reordering_ctrl_timeout_handler(void *pcontext)
|
|
{
|
|
struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)pcontext;
|
|
struct adapter *padapter = preorder_ctrl->padapter;
|
|
struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
|
|
|
|
if (padapter->bDriverStopped || padapter->bSurpriseRemoved)
|
|
return;
|
|
|
|
spin_lock_bh(&ppending_recvframe_queue->lock);
|
|
|
|
if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true)
|
|
_set_timer(&preorder_ctrl->reordering_ctrl_timer, REORDER_WAIT_TIME);
|
|
|
|
spin_unlock_bh(&ppending_recvframe_queue->lock);
|
|
}
|
|
|
|
static int process_recv_indicatepkts(struct adapter *padapter,
|
|
struct recv_frame *prframe)
|
|
{
|
|
int retval = _SUCCESS;
|
|
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
|
|
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
|
|
|
|
if (phtpriv->ht_option) { /* B/G/N Mode */
|
|
if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) {
|
|
/* including perform A-MPDU Rx Ordering Buffer Control */
|
|
if ((!padapter->bDriverStopped) &&
|
|
(!padapter->bSurpriseRemoved)) {
|
|
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) &&
|
|
(!padapter->bSurpriseRemoved)) {
|
|
/* indicate this recv_frame */
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"));
|
|
rtw_recv_indicatepkt(padapter, prframe);
|
|
} else {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"));
|
|
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
|
|
retval = _FAIL;
|
|
return retval;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static int recv_func_prehandle(struct adapter *padapter,
|
|
struct recv_frame *rframe)
|
|
{
|
|
int ret = _SUCCESS;
|
|
struct rx_pkt_attrib *pattrib = &rframe->attrib;
|
|
struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
|
|
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
|
|
|
|
if (padapter->registrypriv.mp_mode == 1) {
|
|
if ((check_fwstate(pmlmepriv, WIFI_MP_STATE) == true)) { /* padapter->mppriv.check_mp_pkt == 0)) */
|
|
if (pattrib->crc_err == 1)
|
|
padapter->mppriv.rx_crcerrpktcount++;
|
|
else
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* check the frame crtl field and decache */
|
|
ret = validate_recv_frame(padapter, rframe);
|
|
if (ret != _SUCCESS) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
|
|
rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */
|
|
goto exit;
|
|
}
|
|
|
|
exit:
|
|
return ret;
|
|
}
|
|
|
|
static int recv_func_posthandle(struct adapter *padapter,
|
|
struct recv_frame *prframe)
|
|
{
|
|
int ret = _SUCCESS;
|
|
struct recv_frame *orig_prframe = prframe;
|
|
struct recv_priv *precvpriv = &padapter->recvpriv;
|
|
struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
|
|
|
|
/* DATA FRAME */
|
|
rtw_led_control(padapter, LED_CTL_RX);
|
|
|
|
prframe = decryptor(padapter, prframe);
|
|
if (prframe == NULL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("decryptor: drop pkt\n"));
|
|
ret = _FAIL;
|
|
goto _recv_data_drop;
|
|
}
|
|
|
|
prframe = recvframe_chk_defrag(padapter, prframe);
|
|
if (prframe == NULL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chk_defrag: drop pkt\n"));
|
|
goto _recv_data_drop;
|
|
}
|
|
|
|
prframe = portctrl(padapter, prframe);
|
|
if (prframe == NULL) {
|
|
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_recvframe(orig_prframe, pfree_recv_queue);/* free this recv_frame */
|
|
goto _recv_data_drop;
|
|
}
|
|
return ret;
|
|
|
|
_recv_data_drop:
|
|
precvpriv->rx_drop++;
|
|
return ret;
|
|
}
|
|
|
|
static int recv_func(struct adapter *padapter, struct recv_frame *rframe)
|
|
{
|
|
int ret;
|
|
struct rx_pkt_attrib *prxattrib = &rframe->attrib;
|
|
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_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) &&
|
|
!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(struct recv_frame *precvframe)
|
|
{
|
|
struct adapter *padapter;
|
|
struct recv_priv *precvpriv;
|
|
s32 ret = _SUCCESS;
|
|
|
|
|
|
padapter = precvframe->adapter;
|
|
|
|
precvpriv = &padapter->recvpriv;
|
|
|
|
ret = recv_func(padapter, precvframe);
|
|
if (ret == _FAIL) {
|
|
RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtw_recv_entry: recv_func return fail!!!\n"));
|
|
goto _recv_entry_drop;
|
|
}
|
|
|
|
precvpriv->rx_pkts++;
|
|
|
|
|
|
return ret;
|
|
|
|
_recv_entry_drop:
|
|
|
|
if (padapter->registrypriv.mp_mode == 1)
|
|
padapter->mppriv.rx_pktloss = precvpriv->rx_drop;
|
|
|
|
|
|
return ret;
|
|
}
|
|
|
|
void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
|
|
{
|
|
struct adapter *adapter = (struct adapter *)FunctionContext;
|
|
struct recv_priv *recvpriv = &adapter->recvpriv;
|
|
|
|
u32 tmp_s, tmp_q;
|
|
u8 avg_signal_strength = 0;
|
|
u8 avg_signal_qual = 0;
|
|
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;
|
|
/* 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;
|
|
/* 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) == 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;
|
|
}
|
|
}
|
|
rtw_set_signal_stat_timer(recvpriv);
|
|
}
|