1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
15 #include <osdep_service.h>
16 #include <drv_types.h>
19 #include <recv_osdep.h>
21 #include <osdep_intf.h>
22 #include <usb_ops_linux.h>
24 /* alloc os related resource in struct recv_buf */
25 int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
26 struct recv_buf *precvbuf)
28 precvbuf->pskb = NULL;
29 precvbuf->reuse = false;
30 precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
36 void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup)
38 union iwreq_data wrqu;
39 struct iw_michaelmicfailure ev;
40 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
41 struct security_priv *psecuritypriv = &padapter->securitypriv;
44 if (psecuritypriv->last_mic_err_time == 0) {
45 psecuritypriv->last_mic_err_time = jiffies;
49 if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) {
50 psecuritypriv->btkip_countermeasure = true;
51 psecuritypriv->last_mic_err_time = 0;
52 psecuritypriv->btkip_countermeasure_time = cur_time;
54 psecuritypriv->last_mic_err_time = jiffies;
58 memset(&ev, 0x00, sizeof(ev));
60 ev.flags |= IW_MICFAILURE_GROUP;
62 ev.flags |= IW_MICFAILURE_PAIRWISE;
64 ev.src_addr.sa_family = ARPHRD_ETHER;
65 memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
66 memset(&wrqu, 0x00, sizeof(wrqu));
67 wrqu.data.length = sizeof(ev);
68 wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE,
72 int rtw_recv_indicatepkt(struct adapter *padapter,
73 struct recv_frame *precv_frame)
75 struct recv_priv *precvpriv;
76 struct __queue *pfree_recv_queue;
78 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
81 precvpriv = &(padapter->recvpriv);
82 pfree_recv_queue = &(precvpriv->free_recv_queue);
84 skb = precv_frame->pkt;
86 RT_TRACE(_module_recv_osdep_c_, _drv_err_,
87 ("rtw_recv_indicatepkt():skb == NULL something wrong!!!!\n"));
88 goto _recv_indicatepkt_drop;
91 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
92 struct sk_buff *pskb2 = NULL;
93 struct sta_info *psta = NULL;
94 struct sta_priv *pstapriv = &padapter->stapriv;
95 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
96 int bmcast = IS_MCAST(pattrib->dst);
98 if (memcmp(pattrib->dst, myid(&padapter->eeprompriv),
101 psta = rtw_get_bcmc_stainfo(padapter);
102 pskb2 = skb_clone(skb, GFP_ATOMIC);
104 psta = rtw_get_stainfo(pstapriv, pattrib->dst);
108 struct net_device *pnetdev;
110 pnetdev = (struct net_device *)padapter->pnetdev;
112 skb_set_queue_mapping(skb, rtw_recv_select_queue(skb));
114 rtw_xmit_entry(skb, pnetdev);
119 goto _recv_indicatepkt_end;
125 rcu_dereference(padapter->pnetdev->rx_handler_data);
128 skb->ip_summed = CHECKSUM_NONE;
129 skb->dev = padapter->pnetdev;
130 skb->protocol = eth_type_trans(skb, padapter->pnetdev);
134 _recv_indicatepkt_end:
136 /* pointers to NULL before rtw_free_recvframe() */
137 precv_frame->pkt = NULL;
139 rtw_free_recvframe(precv_frame, pfree_recv_queue);
141 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
142 ("\n rtw_recv_indicatepkt :after netif_rx!!!!\n"));
147 _recv_indicatepkt_drop:
149 /* enqueue back to free_recv_queue */
150 rtw_free_recvframe(precv_frame, pfree_recv_queue);
155 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
158 setup_timer(&preorder_ctrl->reordering_ctrl_timer,
159 rtw_reordering_ctrl_timeout_handler,
160 (unsigned long)preorder_ctrl);