1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #include <osdep_service.h>
8 #include <drv_types.h>
9
10 #include <wifi.h>
11 #include <recv_osdep.h>
12
13 #include <osdep_intf.h>
14 #include <usb_ops_linux.h>
15
16 /* alloc os related resource in struct recv_buf */
rtw_os_recvbuf_resource_alloc(struct recv_buf * precvbuf)17 int rtw_os_recvbuf_resource_alloc(struct recv_buf *precvbuf)
18 {
19 precvbuf->pskb = NULL;
20 precvbuf->reuse = false;
21 precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
22 if (!precvbuf->purb)
23 return _FAIL;
24 return _SUCCESS;
25 }
26
rtw_handle_tkip_mic_err(struct adapter * padapter,u8 bgroup)27 void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup)
28 {
29 union iwreq_data wrqu;
30 struct iw_michaelmicfailure ev;
31 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
32 struct security_priv *psecuritypriv = &padapter->securitypriv;
33 u32 cur_time = 0;
34
35 if (psecuritypriv->last_mic_err_time == 0) {
36 psecuritypriv->last_mic_err_time = jiffies;
37 } else {
38 cur_time = jiffies;
39
40 if (cur_time - psecuritypriv->last_mic_err_time < 60 * HZ) {
41 psecuritypriv->btkip_countermeasure = true;
42 psecuritypriv->last_mic_err_time = 0;
43 psecuritypriv->btkip_countermeasure_time = cur_time;
44 } else {
45 psecuritypriv->last_mic_err_time = jiffies;
46 }
47 }
48
49 memset(&ev, 0x00, sizeof(ev));
50 if (bgroup)
51 ev.flags |= IW_MICFAILURE_GROUP;
52 else
53 ev.flags |= IW_MICFAILURE_PAIRWISE;
54
55 ev.src_addr.sa_family = ARPHRD_ETHER;
56 memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
57 memset(&wrqu, 0x00, sizeof(wrqu));
58 wrqu.data.length = sizeof(ev);
59 wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE,
60 &wrqu, (char *)&ev);
61 }
62
rtw_recv_indicatepkt(struct adapter * padapter,struct recv_frame * precv_frame)63 int rtw_recv_indicatepkt(struct adapter *padapter,
64 struct recv_frame *precv_frame)
65 {
66 struct recv_priv *precvpriv;
67 struct __queue *pfree_recv_queue;
68 struct sk_buff *skb;
69 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
70
71 precvpriv = &padapter->recvpriv;
72 pfree_recv_queue = &precvpriv->free_recv_queue;
73
74 skb = precv_frame->pkt;
75 if (!skb) {
76 RT_TRACE(_module_recv_osdep_c_, _drv_err_,
77 ("%s():skb == NULL something wrong!!!!\n", __func__));
78 goto _recv_indicatepkt_drop;
79 }
80
81 if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
82 struct sk_buff *pskb2 = NULL;
83 struct sta_info *psta = NULL;
84 struct sta_priv *pstapriv = &padapter->stapriv;
85 struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
86 bool mcast = is_multicast_ether_addr(pattrib->dst);
87
88 if (memcmp(pattrib->dst, myid(&padapter->eeprompriv),
89 ETH_ALEN)) {
90 if (mcast) {
91 psta = rtw_get_bcmc_stainfo(padapter);
92 pskb2 = skb_clone(skb, GFP_ATOMIC);
93 } else {
94 psta = rtw_get_stainfo(pstapriv, pattrib->dst);
95 }
96
97 if (psta) {
98 struct net_device *pnetdev;
99
100 pnetdev = (struct net_device *)padapter->pnetdev;
101 skb->dev = pnetdev;
102 skb_set_queue_mapping(skb, rtw_recv_select_queue(skb));
103
104 rtw_xmit_entry(skb, pnetdev);
105
106 if (mcast)
107 skb = pskb2;
108 else
109 goto _recv_indicatepkt_end;
110 }
111 }
112 }
113
114 skb->ip_summed = CHECKSUM_NONE;
115 skb->dev = padapter->pnetdev;
116 skb->protocol = eth_type_trans(skb, padapter->pnetdev);
117
118 netif_rx(skb);
119
120 _recv_indicatepkt_end:
121
122 /* pointers to NULL before rtw_free_recvframe() */
123 precv_frame->pkt = NULL;
124
125 rtw_free_recvframe(precv_frame, pfree_recv_queue);
126
127 RT_TRACE(_module_recv_osdep_c_, _drv_info_,
128 ("\n %s :after netif_rx!!!!\n", __func__));
129
130 return _SUCCESS;
131
132 _recv_indicatepkt_drop:
133
134 /* enqueue back to free_recv_queue */
135 rtw_free_recvframe(precv_frame, pfree_recv_queue);
136
137 return _FAIL;
138 }
139
rtw_init_recv_timer(struct recv_reorder_ctrl * preorder_ctrl)140 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
141 {
142 timer_setup(&preorder_ctrl->reordering_ctrl_timer,
143 rtw_reordering_ctrl_timeout_handler, 0);
144 }
145