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 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
20 #define _RECV_OSDEP_C_
22 #include <osdep_service.h>
23 #include <drv_types.h>
26 #include <recv_osdep.h>
28 #include <osdep_intf.h>
31 /* init os related resource in struct recv_priv */
32 int rtw_os_recv_resource_init(struct recv_priv *precvpriv,
33 struct adapter *padapter)
38 /* alloc os related resource in struct recv_frame */
39 int rtw_os_recv_resource_alloc(struct adapter *padapter,
40 struct recv_frame *precvframe)
42 precvframe->pkt_newalloc = NULL;
43 precvframe->pkt = NULL;
47 /* free os related resource in struct recv_frame */
48 void rtw_os_recv_resource_free(struct recv_priv *precvpriv)
52 /* alloc os related resource in struct recv_buf */
53 int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
54 struct recv_buf *precvbuf)
58 precvbuf->irp_pending = false;
59 precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
60 if (precvbuf->purb == NULL)
62 precvbuf->pskb = NULL;
63 precvbuf->reuse = false;
64 precvbuf->pallocated_buf = NULL;
65 precvbuf->pbuf = NULL;
66 precvbuf->pdata = NULL;
67 precvbuf->phead = NULL;
68 precvbuf->ptail = NULL;
69 precvbuf->pend = NULL;
70 precvbuf->transfer_len = 0;
75 /* free os related resource in struct recv_buf */
76 int rtw_os_recvbuf_resource_free(struct adapter *padapter,
77 struct recv_buf *precvbuf)
79 usb_free_urb(precvbuf->purb);
83 void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup)
85 union iwreq_data wrqu;
86 struct iw_michaelmicfailure ev;
87 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
88 struct security_priv *psecuritypriv = &padapter->securitypriv;
91 if (psecuritypriv->last_mic_err_time == 0) {
92 psecuritypriv->last_mic_err_time = jiffies;
96 if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) {
97 psecuritypriv->btkip_countermeasure = true;
98 psecuritypriv->last_mic_err_time = 0;
99 psecuritypriv->btkip_countermeasure_time = cur_time;
101 psecuritypriv->last_mic_err_time = jiffies;
105 _rtw_memset(&ev, 0x00, sizeof(ev));
107 ev.flags |= IW_MICFAILURE_GROUP;
109 ev.flags |= IW_MICFAILURE_PAIRWISE;
111 ev.src_addr.sa_family = ARPHRD_ETHER;
112 memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
113 _rtw_memset(&wrqu, 0x00, sizeof(wrqu));
114 wrqu.data.length = sizeof(ev);
115 wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE,
119 void rtw_hostapd_mlme_rx(struct adapter *padapter,
120 struct recv_frame *precv_frame)
124 int rtw_recv_indicatepkt(struct adapter *padapter,
125 struct recv_frame *precv_frame)
127 struct recv_priv *precvpriv;
128 struct __queue *pfree_recv_queue;
130 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
133 precvpriv = &(padapter->recvpriv);
134 pfree_recv_queue = &(precvpriv->free_recv_queue);
136 skb = precv_frame->pkt;
138 RT_TRACE(_module_recv_osdep_c_, _drv_err_,
139 ("rtw_recv_indicatepkt():skb == NULL something wrong!!!!\n"));
140 goto _recv_indicatepkt_drop;
143 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
144 ("rtw_recv_indicatepkt():skb != NULL !!!\n"));
145 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
146 ("rtw_recv_indicatepkt():precv_frame->rx_head =%p precv_frame->hdr.rx_data =%p\n",
147 precv_frame->rx_head, precv_frame->rx_data));
148 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
149 ("precv_frame->hdr.rx_tail =%p precv_frame->rx_end =%p precv_frame->hdr.len =%d\n",
150 precv_frame->rx_tail, precv_frame->rx_end,
153 skb->data = precv_frame->rx_data;
155 skb_set_tail_pointer(skb, precv_frame->len);
157 skb->len = precv_frame->len;
159 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
160 ("skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
161 skb->head, skb->data, skb_tail_pointer(skb),
162 skb_end_pointer(skb), skb->len));
164 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
165 struct sk_buff *pskb2 = NULL;
166 struct sta_info *psta = NULL;
167 struct sta_priv *pstapriv = &padapter->stapriv;
168 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
169 int bmcast = IS_MCAST(pattrib->dst);
171 if (memcmp(pattrib->dst, myid(&padapter->eeprompriv),
174 psta = rtw_get_bcmc_stainfo(padapter);
175 pskb2 = skb_clone(skb, GFP_ATOMIC);
177 psta = rtw_get_stainfo(pstapriv, pattrib->dst);
181 struct net_device *pnetdev;
183 pnetdev = (struct net_device *)padapter->pnetdev;
185 skb_set_queue_mapping(skb, rtw_recv_select_queue(skb));
187 rtw_xmit_entry(skb, pnetdev);
192 goto _recv_indicatepkt_end;
198 rcu_dereference(padapter->pnetdev->rx_handler_data);
201 skb->ip_summed = CHECKSUM_NONE;
202 skb->dev = padapter->pnetdev;
203 skb->protocol = eth_type_trans(skb, padapter->pnetdev);
207 _recv_indicatepkt_end:
209 /* pointers to NULL before rtw_free_recvframe() */
210 precv_frame->pkt = NULL;
212 rtw_free_recvframe(precv_frame, pfree_recv_queue);
214 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
215 ("\n rtw_recv_indicatepkt :after netif_rx!!!!\n"));
220 _recv_indicatepkt_drop:
222 /* enqueue back to free_recv_queue */
223 rtw_free_recvframe(precv_frame, pfree_recv_queue);
228 void rtw_os_read_port(struct adapter *padapter, struct recv_buf *precvbuf)
230 struct recv_priv *precvpriv = &padapter->recvpriv;
233 /* free skb in recv_buf */
234 dev_kfree_skb_any(precvbuf->pskb);
235 precvbuf->pskb = NULL;
236 precvbuf->reuse = false;
237 if (!precvbuf->irp_pending)
238 rtw_read_port(padapter, precvpriv->ff_hwaddr, 0,
239 (unsigned char *)precvbuf);
242 static void _rtw_reordering_ctrl_timeout_handler(void *func_context)
244 struct recv_reorder_ctrl *preorder_ctrl;
246 preorder_ctrl = (struct recv_reorder_ctrl *)func_context;
247 rtw_reordering_ctrl_timeout_handler(preorder_ctrl);
250 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
252 struct adapter *padapter = preorder_ctrl->padapter;
254 _init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, _rtw_reordering_ctrl_timeout_handler, preorder_ctrl);