[mirror_ubuntu-bionic-kernel.git] / drivers / staging / rtl8723au / os_dep / recv_linux.c

/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 ******************************************************************************/
#define _RECV_OSDEP_C_

#include <osdep_service.h>
#include <drv_types.h>

#include <wifi.h>
#include <recv_osdep.h>

#include <osdep_intf.h>

#include <usb_ops.h>

void rtw_handle_tkip_mic_err23a(struct rtw_adapter *padapter, u8 bgroup)
{
	enum nl80211_key_type key_type = 0;
	union iwreq_data wrqu;
	struct iw_michaelmicfailure ev;
	struct mlme_priv *pmlmepriv  = &padapter->mlmepriv;
	struct security_priv *psecuritypriv = &padapter->securitypriv;
	unsigned long cur_time;

	if (psecuritypriv->last_mic_err_time == 0) {
		psecuritypriv->last_mic_err_time = jiffies;
	} else {
		cur_time = jiffies;

		if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) {
			psecuritypriv->btkip_countermeasure = true;
			psecuritypriv->last_mic_err_time = 0;
			psecuritypriv->btkip_countermeasure_time = cur_time;
		} else {
			psecuritypriv->last_mic_err_time = jiffies;
		}
	}

	if (bgroup)
		key_type |= NL80211_KEYTYPE_GROUP;
	else
		key_type |= NL80211_KEYTYPE_PAIRWISE;

	cfg80211_michael_mic_failure(padapter->pnetdev,
				     (u8 *)&pmlmepriv->assoc_bssid[0],
				     key_type, -1, NULL, GFP_ATOMIC);

	memset(&ev, 0x00, sizeof(ev));
	if (bgroup)
		ev.flags |= IW_MICFAILURE_GROUP;
	else
		ev.flags |= IW_MICFAILURE_PAIRWISE;

	ev.src_addr.sa_family = ARPHRD_ETHER;
	ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]);

	memset(&wrqu, 0x00, sizeof(wrqu));
	wrqu.data.length = sizeof(ev);
}

int rtw_recv_indicatepkt23a(struct rtw_adapter *padapter,
			 struct recv_frame *precv_frame)
{
	struct recv_priv *precvpriv;
	struct sk_buff *skb;
	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;

	precvpriv = &padapter->recvpriv;

	skb = precv_frame->pkt;
	if (!skb) {
		RT_TRACE(_module_recv_osdep_c_, _drv_err_,
			 "rtw_recv_indicatepkt23a():skb == NULL!!!!\n");
		goto _recv_indicatepkt_drop;
	}

	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
		 "rtw_recv_indicatepkt23a():skb != NULL !!!\n");
	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
		 "rtw_recv_indicatepkt23a():precv_frame->hdr.rx_data =%p\n",
		 precv_frame->pkt->data);
	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
		 "skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
		 skb->head, skb->data,
		 skb_tail_pointer(skb), skb_end_pointer(skb), skb->len);

	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
		struct sk_buff *pskb2 = NULL;
		struct sta_info *psta = NULL;
		struct sta_priv *pstapriv = &padapter->stapriv;
		struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
		int bmcast = is_multicast_ether_addr(pattrib->dst);

		/* DBG_8723A("bmcast =%d\n", bmcast); */

		if (!ether_addr_equal(pattrib->dst,
				      myid(&padapter->eeprompriv))) {
			/* DBG_8723A("not ap psta =%p, addr =%pM\n", psta, pattrib->dst); */
			if (bmcast) {
				psta = rtw_get_bcmc_stainfo23a(padapter);
				pskb2 = skb_clone(skb, GFP_ATOMIC);
			} else {
				psta = rtw_get_stainfo23a(pstapriv, pattrib->dst);
			}

			if (psta) {
				struct net_device *pnetdev = padapter->pnetdev;

				/* DBG_8723A("directly forwarding to the rtw_xmit23a_entry23a\n"); */

				/* skb->ip_summed = CHECKSUM_NONE; */
				skb->dev = pnetdev;
				skb_set_queue_mapping(skb, rtw_recv_select_queue23a(skb));

				rtw_xmit23a_entry23a(skb, pnetdev);

				if (bmcast)
					skb = pskb2;
				else
					goto _recv_indicatepkt_end;
			}
		} else { /*  to APself */
			/* DBG_8723A("to APSelf\n"); */
		}
	}

	skb->ip_summed = CHECKSUM_NONE;
	skb->dev = padapter->pnetdev;
	skb->protocol = eth_type_trans(skb, padapter->pnetdev);

	netif_rx(skb);

_recv_indicatepkt_end:

	precv_frame->pkt = NULL; /*  pointers to NULL before rtw_free_recvframe23a() */

	rtw_free_recvframe23a(precv_frame);

	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
		 "rtw_recv_indicatepkt23a :after netif_rx!!!!\n");
	return _SUCCESS;

_recv_indicatepkt_drop:

	 rtw_free_recvframe23a(precv_frame);
	 return _FAIL;
}

void rtw_init_recv_timer23a(struct recv_reorder_ctrl *preorder_ctrl)
{
	setup_timer(&preorder_ctrl->reordering_ctrl_timer,
		    rtw_reordering_ctrl_timeout_handler23a,
		    (unsigned long)preorder_ctrl);
}
Commit	Line	Data
b1925ad8 LF	1	/******************************************************************************
	2	*
	3	* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
	4	*
	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.
	8	*
	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
	12	* more details.
	13	*
	14	******************************************************************************/
	15	#define _RECV_OSDEP_C_
	16
	17	#include <osdep_service.h>
	18	#include <drv_types.h>
	19
	20	#include <wifi.h>
	21	#include <recv_osdep.h>
	22
	23	#include <osdep_intf.h>
b1925ad8 LF	24
	25	#include <usb_ops.h>
	26
b1925ad8 LF	27	void rtw_handle_tkip_mic_err23a(struct rtw_adapter *padapter, u8 bgroup)
	28	{
	29	enum nl80211_key_type key_type = 0;
	30	union iwreq_data wrqu;
	31	struct iw_michaelmicfailure ev;
	32	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
	33	struct security_priv *psecuritypriv = &padapter->securitypriv;
	34	unsigned long cur_time;
	35
	36	if (psecuritypriv->last_mic_err_time == 0) {
	37	psecuritypriv->last_mic_err_time = jiffies;
	38	} else {
	39	cur_time = jiffies;
	40
	41	if (cur_time - psecuritypriv->last_mic_err_time < 60*HZ) {
	42	psecuritypriv->btkip_countermeasure = true;
	43	psecuritypriv->last_mic_err_time = 0;
	44	psecuritypriv->btkip_countermeasure_time = cur_time;
	45	} else {
	46	psecuritypriv->last_mic_err_time = jiffies;
	47	}
	48	}
	49
	50	if (bgroup)
	51	key_type \|= NL80211_KEYTYPE_GROUP;
	52	else
	53	key_type \|= NL80211_KEYTYPE_PAIRWISE;
	54
	55	cfg80211_michael_mic_failure(padapter->pnetdev,
	56	(u8 *)&pmlmepriv->assoc_bssid[0],
	57	key_type, -1, NULL, GFP_ATOMIC);
	58
	59	memset(&ev, 0x00, sizeof(ev));
	60	if (bgroup)
	61	ev.flags \|= IW_MICFAILURE_GROUP;
	62	else
	63	ev.flags \|= IW_MICFAILURE_PAIRWISE;
	64
	65	ev.src_addr.sa_family = ARPHRD_ETHER;
	66	ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]);
	67
	68	memset(&wrqu, 0x00, sizeof(wrqu));
	69	wrqu.data.length = sizeof(ev);
	70	}
	71
b1925ad8 LF	72	int rtw_recv_indicatepkt23a(struct rtw_adapter *padapter,
	73	struct recv_frame *precv_frame)
	74	{
	75	struct recv_priv *precvpriv;
b1925ad8 LF	76	struct sk_buff *skb;
	77	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
	78
c5779a0d	79	precvpriv = &padapter->recvpriv;
b1925ad8 LF	80
	81	skb = precv_frame->pkt;
	82	if (!skb) {
	83	RT_TRACE(_module_recv_osdep_c_, _drv_err_,
90403aa1	84	"rtw_recv_indicatepkt23a():skb == NULL!!!!\n");
b1925ad8 LF	85	goto _recv_indicatepkt_drop;
	86	}
	87
	88	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
90403aa1	89	"rtw_recv_indicatepkt23a():skb != NULL !!!\n");
b1925ad8	90	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
90403aa1 JP	91	"rtw_recv_indicatepkt23a():precv_frame->hdr.rx_data =%p\n",
90403aa1 JP	92	precv_frame->pkt->data);
b1925ad8	93	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
90403aa1 JP	94	"skb->head =%p skb->data =%p skb->tail =%p skb->end =%p skb->len =%d\n",
	95	skb->head, skb->data,
	96	skb_tail_pointer(skb), skb_end_pointer(skb), skb->len);
b1925ad8 LF	97
	98	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
	99	struct sk_buff *pskb2 = NULL;
	100	struct sta_info *psta = NULL;
	101	struct sta_priv *pstapriv = &padapter->stapriv;
	102	struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
	103	int bmcast = is_multicast_ether_addr(pattrib->dst);
	104
	105	/* DBG_8723A("bmcast =%d\n", bmcast); */
	106
	107	if (!ether_addr_equal(pattrib->dst,
	108	myid(&padapter->eeprompriv))) {
	109	/* DBG_8723A("not ap psta =%p, addr =%pM\n", psta, pattrib->dst); */
	110	if (bmcast) {
	111	psta = rtw_get_bcmc_stainfo23a(padapter);
	112	pskb2 = skb_clone(skb, GFP_ATOMIC);
	113	} else {
	114	psta = rtw_get_stainfo23a(pstapriv, pattrib->dst);
	115	}
	116
	117	if (psta) {
	118	struct net_device *pnetdev = padapter->pnetdev;
	119
	120	/* DBG_8723A("directly forwarding to the rtw_xmit23a_entry23a\n"); */
	121
	122	/* skb->ip_summed = CHECKSUM_NONE; */
	123	skb->dev = pnetdev;
	124	skb_set_queue_mapping(skb, rtw_recv_select_queue23a(skb));
	125
	126	rtw_xmit23a_entry23a(skb, pnetdev);
	127
	128	if (bmcast)
	129	skb = pskb2;
	130	else
	131	goto _recv_indicatepkt_end;
	132	}
	133	} else { /* to APself */
	134	/* DBG_8723A("to APSelf\n"); */
	135	}
	136	}
	137
	138	skb->ip_summed = CHECKSUM_NONE;
	139	skb->dev = padapter->pnetdev;
	140	skb->protocol = eth_type_trans(skb, padapter->pnetdev);
	141
	142	netif_rx(skb);
	143
	144	_recv_indicatepkt_end:
	145
	146	precv_frame->pkt = NULL; /* pointers to NULL before rtw_free_recvframe23a() */
	147
c5779a0d	148	rtw_free_recvframe23a(precv_frame);
b1925ad8 LF	149
b1925ad8 LF	150	RT_TRACE(_module_recv_osdep_c_, _drv_info_,
90403aa1	151	"rtw_recv_indicatepkt23a :after netif_rx!!!!\n");
b1925ad8 LF	152	return _SUCCESS;
	153
	154	_recv_indicatepkt_drop:
	155
c5779a0d	156	rtw_free_recvframe23a(precv_frame);
b1925ad8 LF	157	return _FAIL;
	158	}
	159
b1925ad8 LF	160	void rtw_init_recv_timer23a(struct recv_reorder_ctrl *preorder_ctrl)
	161	{
	162	setup_timer(&preorder_ctrl->reordering_ctrl_timer,
	163	rtw_reordering_ctrl_timeout_handler23a,
	164	(unsigned long)preorder_ctrl);
	165	}