mirror of
https://github.com/lwfinger/rtl8188eu.git
synced 2024-11-22 12:33:40 +00:00
258 lines
7.1 KiB
C
258 lines
7.1 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 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 _RECV_OSDEP_C_
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#include <osdep_service.h>
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#include <drv_types.h>
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#include <wifi.h>
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#include <recv_osdep.h>
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#include <osdep_intf.h>
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#include <ethernet.h>
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#include <usb_ops.h>
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/* init os related resource in struct recv_priv */
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int rtw_os_recv_resource_init(struct recv_priv *precvpriv,
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struct adapter *padapter)
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{
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return _SUCCESS;
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}
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/* alloc os related resource in struct recv_frame */
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int rtw_os_recv_resource_alloc(struct adapter *padapter,
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struct recv_frame *precvframe)
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{
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precvframe->pkt_newalloc = NULL;
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precvframe->pkt = NULL;
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return _SUCCESS;
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}
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/* free os related resource in struct recv_frame */
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void rtw_os_recv_resource_free(struct recv_priv *precvpriv)
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{
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}
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/* alloc os related resource in struct recv_buf */
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int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
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struct recv_buf *precvbuf)
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{
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int res = _SUCCESS;
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precvbuf->irp_pending = false;
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precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
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if (precvbuf->purb == NULL)
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res = _FAIL;
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precvbuf->pskb = NULL;
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precvbuf->reuse = false;
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precvbuf->pallocated_buf = NULL;
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precvbuf->pbuf = NULL;
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precvbuf->pdata = NULL;
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precvbuf->phead = NULL;
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precvbuf->ptail = NULL;
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precvbuf->pend = NULL;
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precvbuf->transfer_len = 0;
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precvbuf->len = 0;
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return res;
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}
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/* free os related resource in struct recv_buf */
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int rtw_os_recvbuf_resource_free(struct adapter *padapter,
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struct recv_buf *precvbuf)
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{
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usb_free_urb(precvbuf->purb);
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return _SUCCESS;
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}
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void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup)
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{
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union iwreq_data wrqu;
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struct iw_michaelmicfailure ev;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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struct security_priv *psecuritypriv = &padapter->securitypriv;
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u32 cur_time = 0;
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if (psecuritypriv->last_mic_err_time == 0) {
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psecuritypriv->last_mic_err_time = jiffies;
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} else {
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cur_time = jiffies;
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if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) {
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psecuritypriv->btkip_countermeasure = true;
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psecuritypriv->last_mic_err_time = 0;
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psecuritypriv->btkip_countermeasure_time = cur_time;
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} else {
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psecuritypriv->last_mic_err_time = jiffies;
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}
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}
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memset(&ev, 0x00, sizeof(ev));
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if (bgroup)
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ev.flags |= IW_MICFAILURE_GROUP;
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else
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ev.flags |= IW_MICFAILURE_PAIRWISE;
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ev.src_addr.sa_family = ARPHRD_ETHER;
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memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
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memset(&wrqu, 0x00, sizeof(wrqu));
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wrqu.data.length = sizeof(ev);
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wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE,
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&wrqu, (char *)&ev);
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}
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void rtw_hostapd_mlme_rx(struct adapter *padapter,
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struct recv_frame *precv_frame)
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{
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}
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int rtw_recv_indicatepkt(struct adapter *padapter,
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struct recv_frame *precv_frame)
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{
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struct recv_priv *precvpriv;
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struct __queue *pfree_recv_queue;
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struct sk_buff *skb;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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precvpriv = &(padapter->recvpriv);
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pfree_recv_queue = &(precvpriv->free_recv_queue);
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skb = precv_frame->pkt;
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if (skb == NULL) {
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RT_TRACE(_module_recv_osdep_c_, _drv_err_,
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("rtw_recv_indicatepkt():skb == NULL something wrong!!!!\n"));
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goto _recv_indicatepkt_drop;
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}
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RT_TRACE(_module_recv_osdep_c_, _drv_info_,
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("rtw_recv_indicatepkt():skb != NULL !!!\n"));
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RT_TRACE(_module_recv_osdep_c_, _drv_info_,
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("rtw_recv_indicatepkt():precv_frame->rx_head =%p precv_frame->hdr.rx_data =%p\n",
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precv_frame->rx_head, precv_frame->rx_data));
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RT_TRACE(_module_recv_osdep_c_, _drv_info_,
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("precv_frame->hdr.rx_tail =%p precv_frame->rx_end =%p precv_frame->hdr.len =%d\n",
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precv_frame->rx_tail, precv_frame->rx_end,
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precv_frame->len));
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skb->data = precv_frame->rx_data;
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skb_set_tail_pointer(skb, precv_frame->len);
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skb->len = precv_frame->len;
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RT_TRACE(_module_recv_osdep_c_, _drv_info_,
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("skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
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skb->head, skb->data, skb_tail_pointer(skb),
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skb_end_pointer(skb), skb->len));
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if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
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struct sk_buff *pskb2 = NULL;
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struct sta_info *psta = NULL;
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struct sta_priv *pstapriv = &padapter->stapriv;
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struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
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int bmcast = IS_MCAST(pattrib->dst);
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if (memcmp(pattrib->dst, myid(&padapter->eeprompriv),
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ETH_ALEN)) {
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if (bmcast) {
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psta = rtw_get_bcmc_stainfo(padapter);
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pskb2 = skb_clone(skb, GFP_ATOMIC);
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} else {
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psta = rtw_get_stainfo(pstapriv, pattrib->dst);
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}
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if (psta) {
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struct net_device *pnetdev;
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pnetdev = (struct net_device *)padapter->pnetdev;
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skb->dev = pnetdev;
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skb_set_queue_mapping(skb, rtw_recv_select_queue(skb));
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rtw_xmit_entry(skb, pnetdev);
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if (bmcast)
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skb = pskb2;
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else
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goto _recv_indicatepkt_end;
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}
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}
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}
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rcu_read_lock();
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
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rcu_dereference(padapter->pnetdev->rx_handler_data);
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#else
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rcu_dereference(padapter->pnetdev->br_port);
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#endif
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rcu_read_unlock();
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skb->ip_summed = CHECKSUM_NONE;
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skb->dev = padapter->pnetdev;
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skb->protocol = eth_type_trans(skb, padapter->pnetdev);
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netif_rx(skb);
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_recv_indicatepkt_end:
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/* pointers to NULL before rtw_free_recvframe() */
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precv_frame->pkt = NULL;
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rtw_free_recvframe(precv_frame, pfree_recv_queue);
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RT_TRACE(_module_recv_osdep_c_, _drv_info_,
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("\n rtw_recv_indicatepkt :after netif_rx!!!!\n"));
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return _SUCCESS;
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_recv_indicatepkt_drop:
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/* enqueue back to free_recv_queue */
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rtw_free_recvframe(precv_frame, pfree_recv_queue);
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return _FAIL;
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}
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void rtw_os_read_port(struct adapter *padapter, struct recv_buf *precvbuf)
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{
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struct recv_priv *precvpriv = &padapter->recvpriv;
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precvbuf->ref_cnt--;
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/* free skb in recv_buf */
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dev_kfree_skb_any(precvbuf->pskb);
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precvbuf->pskb = NULL;
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precvbuf->reuse = false;
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if (!precvbuf->irp_pending)
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rtw_read_port(padapter, precvpriv->ff_hwaddr, 0,
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(unsigned char *)precvbuf);
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}
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static void _rtw_reordering_ctrl_timeout_handler(void *func_context)
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{
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struct recv_reorder_ctrl *preorder_ctrl;
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preorder_ctrl = (struct recv_reorder_ctrl *)func_context;
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rtw_reordering_ctrl_timeout_handler(preorder_ctrl);
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}
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void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
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{
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struct adapter *padapter = preorder_ctrl->padapter;
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_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, _rtw_reordering_ctrl_timeout_handler, preorder_ctrl);
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}
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