Contributors: 12
Author Tokens Token Proportion Commits Commit Proportion
Jerry Chuang 4287 96.06% 1 7.69%
Binoy Jayan 80 1.79% 1 7.69%
Chaitanya Hazarey 76 1.70% 2 15.38%
Ovidiu Toader 5 0.11% 1 7.69%
Luis de Bethencourt 3 0.07% 1 7.69%
Ksenija Stanojevic 3 0.07% 1 7.69%
Greg Kroah-Hartman 2 0.04% 1 7.69%
Justin P. Mattock 2 0.04% 1 7.69%
Jim Cromie 2 0.04% 1 7.69%
Bhumika Goyal 1 0.02% 1 7.69%
Joe Perches 1 0.02% 1 7.69%
Mauro Carvalho Chehab 1 0.02% 1 7.69%
Total 4463 13 


// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 *
 * This file contains wireless extension handlers.
 *
 * This is part of rtl8180 OpenSource driver.
 * Copyright (C) Andrea Merello 2004-2005  <andrea.merello@gmail.com>
 *
 * Parts of this driver are based on the GPL part
 * of the official realtek driver.
 *
 * Parts of this driver are based on the rtl8180 driver skeleton
 * from Patric Schenke & Andres Salomon.
 *
 * Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver.
 *
 * We want to thank the Authors of those projects and the Ndiswrapper
 * project Authors.
 *
 *****************************************************************************/

#include <linux/string.h>
#include "r8192U.h"
#include "r8192U_hw.h"

#include "dot11d.h"
#include "r8192U_wx.h"

#define RATE_COUNT 12
static const u32 rtl8180_rates[] = {1000000, 2000000, 5500000, 11000000,
	6000000, 9000000, 12000000, 18000000, 24000000, 36000000, 48000000, 54000000};

#ifndef ENETDOWN
#define ENETDOWN 1
#endif

static int r8192_wx_get_freq(struct net_device *dev,
			     struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_freq(priv->ieee80211, a, wrqu, b);
}

static int r8192_wx_get_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_mode(priv->ieee80211, a, wrqu, b);
}

static int r8192_wx_get_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_rate(priv->ieee80211, info, wrqu, extra);
}

static int r8192_wx_set_rate(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_rate(priv->ieee80211, info, wrqu, extra);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_set_rts(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_rts(priv->ieee80211, info, wrqu, extra);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_get_rts(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_rts(priv->ieee80211, info, wrqu, extra);
}

static int r8192_wx_set_power(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_power(priv->ieee80211, info, wrqu, extra);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_get_power(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_power(priv->ieee80211, info, wrqu, extra);
}

static int r8192_wx_force_reset(struct net_device *dev,
		struct iw_request_info *info,
		union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	netdev_dbg(dev, "%s(): force reset ! extra is %d\n", __func__, *extra);
	priv->force_reset = *extra;
	mutex_unlock(&priv->wx_mutex);
	return 0;

}

static int r8192_wx_set_rawtx(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int ret;

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_rawtx(priv->ieee80211, info, wrqu, extra);

	mutex_unlock(&priv->wx_mutex);

	return ret;

}

static int r8192_wx_set_crcmon(struct net_device *dev,
			       struct iw_request_info *info,
			       union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int *parms = (int *)extra;
	int enable = (parms[0] > 0);

	mutex_lock(&priv->wx_mutex);

	if (enable)
		priv->crcmon = 1;
	else
		priv->crcmon = 0;

	DMESG("bad CRC in monitor mode are %s",
	      priv->crcmon ? "accepted" : "rejected");

	mutex_unlock(&priv->wx_mutex);

	return 0;
}

static int r8192_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int ret;

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_mode(priv->ieee80211, a, wrqu, b);

	rtl8192_set_rxconf(dev);

	mutex_unlock(&priv->wx_mutex);
	return ret;
}

struct  iw_range_with_scan_capa {
	/* Informative stuff (to choose between different interface) */
	__u32           throughput;     /* To give an idea... */
	/* In theory this value should be the maximum benchmarked
	 * TCP/IP throughput, because with most of these devices the
	 * bit rate is meaningless (overhead an co) to estimate how
	 * fast the connection will go and pick the fastest one.
	 * I suggest people to play with Netperf or any benchmark...
	 */

	/* NWID (or domain id) */
	__u32           min_nwid;       /* Minimal NWID we are able to set */
	__u32           max_nwid;       /* Maximal NWID we are able to set */

	/* Old Frequency (backward compat - moved lower ) */
	__u16           old_num_channels;
	__u8            old_num_frequency;

	/* Scan capabilities */
	__u8            scan_capa;
};
static int rtl8180_wx_get_range(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct iw_range *range = (struct iw_range *)extra;
	struct iw_range_with_scan_capa *tmp = (struct iw_range_with_scan_capa *)range;
	struct r8192_priv *priv = ieee80211_priv(dev);
	u16 val;
	int i;

	wrqu->data.length = sizeof(*range);
	memset(range, 0, sizeof(*range));

	/* Let's try to keep this struct in the same order as in
	 * linux/include/wireless.h
	 */

	/* TODO: See what values we can set, and remove the ones we can't
	 * set, or fill them with some default data.
	 */

	/* ~5 Mb/s real (802.11b) */
	range->throughput = 5 * 1000 * 1000;

	/* TODO: Not used in 802.11b? */
	/* range->min_nwid; */	/* Minimal NWID we are able to set */
	/* TODO: Not used in 802.11b? */
	/* range->max_nwid; */	/* Maximal NWID we are able to set */

	/* Old Frequency (backward compat - moved lower ) */
	/* range->old_num_channels; */
	/* range->old_num_frequency; */
	/* range->old_freq[6]; */ /* Filler to keep "version" at the same offset */
	if (priv->rf_set_sens != NULL)
		range->sensitivity = priv->max_sens;	/* signal level threshold range */

	range->max_qual.qual = 100;
	/* TODO: Find real max RSSI and stick here */
	range->max_qual.level = 0;
	range->max_qual.noise = 0x100 - 98;
	range->max_qual.updated = 7; /* Updated all three */

	range->avg_qual.qual = 92; /* > 8% missed beacons is 'bad' */
	/* TODO: Find real 'good' to 'bad' threshold value for RSSI */
	range->avg_qual.level = 0x100 - 78;
	range->avg_qual.noise = 0;
	range->avg_qual.updated = 7; /* Updated all three */

	range->num_bitrates = RATE_COUNT;

	for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++)
		range->bitrate[i] = rtl8180_rates[i];

	range->min_frag = MIN_FRAG_THRESHOLD;
	range->max_frag = MAX_FRAG_THRESHOLD;

	range->min_pmp = 0;
	range->max_pmp = 5000000;
	range->min_pmt = 0;
	range->max_pmt = 65535*1000;
	range->pmp_flags = IW_POWER_PERIOD;
	range->pmt_flags = IW_POWER_TIMEOUT;
	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;

	range->we_version_compiled = WIRELESS_EXT;
	range->we_version_source = 16;

	/* range->retry_capa; */	/* What retry options are supported */
	/* range->retry_flags; */	/* How to decode max/min retry limit */
	/* range->r_time_flags; */	/* How to decode max/min retry life */
	/* range->min_retry; */		/* Minimal number of retries */
	/* range->max_retry; */		/* Maximal number of retries */
	/* range->min_r_time; */	/* Minimal retry lifetime */
	/* range->max_r_time; */	/* Maximal retry lifetime */

	for (i = 0, val = 0; i < 14; i++) {

		/* Include only legal frequencies for some countries */
		if ((GET_DOT11D_INFO(priv->ieee80211)->channel_map)[i+1]) {
			range->freq[val].i = i + 1;
			range->freq[val].m = ieee80211_wlan_frequencies[i] * 100000;
			range->freq[val].e = 1;
			val++;
		} else {
			/* FIXME: do we need to set anything for channels */
			/* we don't use ? */
		}

		if (val == IW_MAX_FREQUENCIES)
			break;
	}
	range->num_frequency = val;
	range->num_channels = val;
	range->enc_capa = IW_ENC_CAPA_WPA|IW_ENC_CAPA_WPA2|
			  IW_ENC_CAPA_CIPHER_TKIP|IW_ENC_CAPA_CIPHER_CCMP;
	tmp->scan_capa = 0x01;
	return 0;
}

static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee = priv->ieee80211;
	int ret = 0;

	if (!priv->up)
		return -ENETDOWN;

	if (priv->ieee80211->LinkDetectInfo.bBusyTraffic)
		return -EAGAIN;
	if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
		struct iw_scan_req *req = (struct iw_scan_req *)b;

		if (req->essid_len) {
			ieee->current_network.ssid_len = req->essid_len;
			memcpy(ieee->current_network.ssid, req->essid, req->essid_len);
		}
	}

	mutex_lock(&priv->wx_mutex);
	if (priv->ieee80211->state != IEEE80211_LINKED) {
		priv->ieee80211->scanning = 0;
		ieee80211_softmac_scan_syncro(priv->ieee80211);
		ret = 0;
	} else {
		ret = ieee80211_wx_set_scan(priv->ieee80211, a, wrqu, b);
	}
	mutex_unlock(&priv->wx_mutex);
	return ret;
}


static int r8192_wx_get_scan(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{

	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (!priv->up)
		return -ENETDOWN;

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_get_scan(priv->ieee80211, a, wrqu, b);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_set_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int ret;

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_essid(priv->ieee80211, a, wrqu, b);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_get_essid(struct net_device *dev,
			      struct iw_request_info *a,
			      union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_get_essid(priv->ieee80211, a, wrqu, b);

	mutex_unlock(&priv->wx_mutex);

	return ret;
}

static int r8192_wx_set_freq(struct net_device *dev, struct iw_request_info *a,
			     union iwreq_data *wrqu, char *b)
{
	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_freq(priv->ieee80211, a, wrqu, b);

	mutex_unlock(&priv->wx_mutex);
	return ret;
}

static int r8192_wx_get_name(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_name(priv->ieee80211, info, wrqu, extra);
}

static int r8192_wx_set_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (wrqu->frag.disabled)
		priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
	else {
		if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
		    wrqu->frag.value > MAX_FRAG_THRESHOLD)
			return -EINVAL;

		priv->ieee80211->fts = wrqu->frag.value & ~0x1;
	}

	return 0;
}


static int r8192_wx_get_frag(struct net_device *dev,
			     struct iw_request_info *info,
			     union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	wrqu->frag.value = priv->ieee80211->fts;
	wrqu->frag.fixed = 0;	/* no auto select */
	wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FRAG_THRESHOLD);

	return 0;
}


static int r8192_wx_set_wap(struct net_device *dev,
			 struct iw_request_info *info,
			 union iwreq_data *awrq,
			 char *extra)
{

	int ret;
	struct r8192_priv *priv = ieee80211_priv(dev);
	/* struct sockaddr *temp = (struct sockaddr *)awrq; */
	mutex_lock(&priv->wx_mutex);

	ret = ieee80211_wx_set_wap(priv->ieee80211, info, awrq, extra);

	mutex_unlock(&priv->wx_mutex);

	return ret;

}

static int r8192_wx_get_wap(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_wap(priv->ieee80211, info, wrqu, extra);
}

static int r8192_wx_get_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	return ieee80211_wx_get_encode(priv->ieee80211, info, wrqu, key);
}

static int r8192_wx_set_enc(struct net_device *dev,
			    struct iw_request_info *info,
			    union iwreq_data *wrqu, char *key)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee = priv->ieee80211;
	int ret;
	u32 hwkey[4] = {0, 0, 0, 0};
	u8 mask = 0xff;
	u32 key_idx = 0;
	u8 zero_addr[4][6] = {	{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
				{0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
				{0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
				{0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
	int i;

	if (!priv->up)
		return -ENETDOWN;

	mutex_lock(&priv->wx_mutex);

	RT_TRACE(COMP_SEC, "Setting SW wep key");
	ret = ieee80211_wx_set_encode(priv->ieee80211, info, wrqu, key);

	mutex_unlock(&priv->wx_mutex);



	/* sometimes, the length is zero while we do not type key value */
	if (wrqu->encoding.length != 0) {

		for (i = 0; i < 4; i++) {
			hwkey[i] |=  key[4*i+0]&mask;
			if (i == 1 && (4*i+1) == wrqu->encoding.length)
				mask = 0x00;
			if (i == 3 && (4*i+1) == wrqu->encoding.length)
				mask = 0x00;
			hwkey[i] |= (key[4*i+1]&mask)<<8;
			hwkey[i] |= (key[4*i+2]&mask)<<16;
			hwkey[i] |= (key[4*i+3]&mask)<<24;
		}

		#define CONF_WEP40  0x4
		#define CONF_WEP104 0x14

		switch (wrqu->encoding.flags & IW_ENCODE_INDEX) {
		case 0:
			key_idx = ieee->tx_keyidx;
			break;
		case 1:
			key_idx = 0;
			break;
		case 2:
			key_idx = 1;
			break;
		case 3:
			key_idx = 2;
			break;
		case 4:
			key_idx	= 3;
			break;
		default:
			break;
		}

		if (wrqu->encoding.length == 0x5) {
			ieee->pairwise_key_type = KEY_TYPE_WEP40;
			EnableHWSecurityConfig8192(dev);

			setKey(dev,
				key_idx,                /* EntryNo */
				key_idx,                /* KeyIndex */
				KEY_TYPE_WEP40,         /* KeyType */
				zero_addr[key_idx],
				0,                      /* DefaultKey */
				hwkey);                 /* KeyContent */

		}

		else if (wrqu->encoding.length == 0xd) {
			ieee->pairwise_key_type = KEY_TYPE_WEP104;
			EnableHWSecurityConfig8192(dev);

			setKey(dev,
				key_idx,                /* EntryNo */
				key_idx,                /* KeyIndex */
				KEY_TYPE_WEP104,        /* KeyType */
				zero_addr[key_idx],
				0,                      /* DefaultKey */
				hwkey);                 /* KeyContent */

		} else {
			printk("wrong type in WEP, not WEP40 and WEP104\n");
		}

	}

	return ret;
}


static int r8192_wx_set_scan_type(struct net_device *dev, struct iw_request_info *aa,
					union iwreq_data *wrqu, char *p)
{

	struct r8192_priv *priv = ieee80211_priv(dev);
	int *parms = (int *)p;
	int mode = parms[0];

	priv->ieee80211->active_scan = mode;

	return 1;
}



static int r8192_wx_set_retry(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	int err = 0;

	mutex_lock(&priv->wx_mutex);

	if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
	    wrqu->retry.disabled){
		err = -EINVAL;
		goto exit;
	}
	if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) {
		err = -EINVAL;
		goto exit;
	}

	if (wrqu->retry.value > R8180_MAX_RETRY) {
		err = -EINVAL;
		goto exit;
	}
	if (wrqu->retry.flags & IW_RETRY_MAX) {
		priv->retry_rts = wrqu->retry.value;
		DMESG("Setting retry for RTS/CTS data to %d", wrqu->retry.value);

	} else {
		priv->retry_data = wrqu->retry.value;
		DMESG("Setting retry for non RTS/CTS data to %d", wrqu->retry.value);
	}

	/* FIXME !
	 * We might try to write directly the TX config register
	 * or to restart just the (R)TX process.
	 * I'm unsure if whole reset is really needed
	 */

	rtl8192_commit(dev);
exit:
	mutex_unlock(&priv->wx_mutex);

	return err;
}

static int r8192_wx_get_retry(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);


	wrqu->retry.disabled = 0; /* can't be disabled */

	if ((wrqu->retry.flags & IW_RETRY_TYPE) ==
	    IW_RETRY_LIFETIME)
		return -EINVAL;

	if (wrqu->retry.flags & IW_RETRY_MAX) {
		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
		wrqu->retry.value = priv->retry_rts;
	} else {
		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
		wrqu->retry.value = priv->retry_data;
	}

	return 0;
}

static int r8192_wx_get_sens(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{
	struct r8192_priv *priv = ieee80211_priv(dev);

	if (priv->rf_set_sens == NULL)
		return -1; /* we have not this support for this radio */
	wrqu->sens.value = priv->sens;
	return 0;
}

static int r8192_wx_set_sens(struct net_device *dev,
				struct iw_request_info *info,
				union iwreq_data *wrqu, char *extra)
{

	struct r8192_priv *priv = ieee80211_priv(dev);
	short err = 0;

	mutex_lock(&priv->wx_mutex);
	if (priv->rf_set_sens == NULL) {
		err = -1; /* we have not this support for this radio */
		goto exit;
	}
	if (priv->rf_set_sens(dev, wrqu->sens.value) == 0)
		priv->sens = wrqu->sens.value;
	else
		err = -EINVAL;

exit:
	mutex_unlock(&priv->wx_mutex);

	return err;
}

/* hw security need to reorganized. */
static int r8192_wx_set_enc_ext(struct net_device *dev,
					struct iw_request_info *info,
					union iwreq_data *wrqu, char *extra)
{
	int ret = 0;
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee = priv->ieee80211;


	mutex_lock(&priv->wx_mutex);
	ret = ieee80211_wx_set_encode_ext(priv->ieee80211, info, wrqu, extra);

	{
		u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
		u8 zero[6] = {0};
		u32 key[4] = {0};
		struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
		struct iw_point *encoding = &wrqu->encoding;
		u8 idx = 0, alg = 0, group = 0;

		if ((encoding->flags & IW_ENCODE_DISABLED) || ext->alg == IW_ENCODE_ALG_NONE)
			/* none is not allowed to use hwsec WB 2008.07.01 */
			goto end_hw_sec;

		/* as IW_ENCODE_ALG_CCMP is defined to be 3 and KEY_TYPE_CCMP is defined to 4; */
		alg =  (ext->alg == IW_ENCODE_ALG_CCMP)?KEY_TYPE_CCMP:ext->alg;
		idx = encoding->flags & IW_ENCODE_INDEX;
		if (idx)
			idx--;
		group = ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY;

		if ((!group) || (IW_MODE_ADHOC == ieee->iw_mode) || (alg ==  KEY_TYPE_WEP40)) {
			if ((ext->key_len == 13) && (alg == KEY_TYPE_WEP40))
				alg = KEY_TYPE_WEP104;
			ieee->pairwise_key_type = alg;
			EnableHWSecurityConfig8192(dev);
		}
		memcpy((u8 *)key, ext->key, 16); /* we only get 16 bytes key.why? WB 2008.7.1 */

		if ((alg & KEY_TYPE_WEP40) && (ieee->auth_mode != 2)) {

			setKey(dev,
					idx,	/* EntryNao */
					idx,	/* KeyIndex */
					alg,	/* KeyType */
					zero,	/* MacAddr */
					0,	/* DefaultKey */
					key);	/* KeyContent */
		} else if (group) {
			ieee->group_key_type = alg;
			setKey(dev,
					idx,	/* EntryNo */
					idx,	/* KeyIndex */
					alg,	/* KeyType */
					broadcast_addr,	/* MacAddr */
					0,		/* DefaultKey */
					key);		/* KeyContent */
		} else {	/* pairwise key */
			setKey(dev,
					4,	/* EntryNo */
					idx,	/* KeyIndex */
					alg,	/* KeyType */
					(u8 *)ieee->ap_mac_addr,/* MacAddr */
					0,			/* DefaultKey */
					key);			/* KeyContent */
		}


	}

end_hw_sec:

	mutex_unlock(&priv->wx_mutex);
	return ret;

}
static int r8192_wx_set_auth(struct net_device *dev,
					struct iw_request_info *info,
					union iwreq_data *data, char *extra)
{
	int ret = 0;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);
	ret = ieee80211_wx_set_auth(priv->ieee80211, info, &(data->param), extra);
	mutex_unlock(&priv->wx_mutex);
	return ret;
}

static int r8192_wx_set_mlme(struct net_device *dev,
					struct iw_request_info *info,
					union iwreq_data *wrqu, char *extra)
{

	int ret = 0;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);
	ret = ieee80211_wx_set_mlme(priv->ieee80211, info, wrqu, extra);

	mutex_unlock(&priv->wx_mutex);
	return ret;
}

static int r8192_wx_set_gen_ie(struct net_device *dev,
					struct iw_request_info *info,
					union iwreq_data *data, char *extra)
{
	int ret = 0;
	struct r8192_priv *priv = ieee80211_priv(dev);

	mutex_lock(&priv->wx_mutex);
	ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, data->data.length);
	mutex_unlock(&priv->wx_mutex);
	return ret;


}

static int dummy(struct net_device *dev, struct iw_request_info *a,
		 union iwreq_data *wrqu, char *b)
{
	return -1;
}

static iw_handler r8192_wx_handlers[] = {
	NULL,                     /* SIOCSIWCOMMIT */
	r8192_wx_get_name,	  /* SIOCGIWNAME */
	dummy,                    /* SIOCSIWNWID */
	dummy,                    /* SIOCGIWNWID */
	r8192_wx_set_freq,        /* SIOCSIWFREQ */
	r8192_wx_get_freq,        /* SIOCGIWFREQ */
	r8192_wx_set_mode,        /* SIOCSIWMODE */
	r8192_wx_get_mode,        /* SIOCGIWMODE */
	r8192_wx_set_sens,        /* SIOCSIWSENS */
	r8192_wx_get_sens,        /* SIOCGIWSENS */
	NULL,                     /* SIOCSIWRANGE */
	rtl8180_wx_get_range,	  /* SIOCGIWRANGE */
	NULL,                     /* SIOCSIWPRIV */
	NULL,                     /* SIOCGIWPRIV */
	NULL,                     /* SIOCSIWSTATS */
	NULL,                     /* SIOCGIWSTATS */
	dummy,                    /* SIOCSIWSPY */
	dummy,                    /* SIOCGIWSPY */
	NULL,                     /* SIOCGIWTHRSPY */
	NULL,                     /* SIOCWIWTHRSPY */
	r8192_wx_set_wap,	  /* SIOCSIWAP */
	r8192_wx_get_wap,         /* SIOCGIWAP */
	r8192_wx_set_mlme,                     /* MLME-- */
	dummy,                     /* SIOCGIWAPLIST -- deprecated */
	r8192_wx_set_scan,        /* SIOCSIWSCAN */
	r8192_wx_get_scan,        /* SIOCGIWSCAN */
	r8192_wx_set_essid,       /* SIOCSIWESSID */
	r8192_wx_get_essid,       /* SIOCGIWESSID */
	dummy,                    /* SIOCSIWNICKN */
	dummy,                    /* SIOCGIWNICKN */
	NULL,                     /* -- hole -- */
	NULL,                     /* -- hole -- */
	r8192_wx_set_rate,        /* SIOCSIWRATE */
	r8192_wx_get_rate,        /* SIOCGIWRATE */
	r8192_wx_set_rts,                    /* SIOCSIWRTS */
	r8192_wx_get_rts,                    /* SIOCGIWRTS */
	r8192_wx_set_frag,        /* SIOCSIWFRAG */
	r8192_wx_get_frag,        /* SIOCGIWFRAG */
	dummy,                    /* SIOCSIWTXPOW */
	dummy,                    /* SIOCGIWTXPOW */
	r8192_wx_set_retry,       /* SIOCSIWRETRY */
	r8192_wx_get_retry,       /* SIOCGIWRETRY */
	r8192_wx_set_enc,         /* SIOCSIWENCODE */
	r8192_wx_get_enc,         /* SIOCGIWENCODE */
	r8192_wx_set_power,                    /* SIOCSIWPOWER */
	r8192_wx_get_power,                    /* SIOCGIWPOWER */
	NULL,			/*---hole---*/
	NULL,			/*---hole---*/
	r8192_wx_set_gen_ie, /* NULL, */		/* SIOCSIWGENIE */
	NULL,			/* SIOCSIWGENIE */

	r8192_wx_set_auth,/* NULL, */			/* SIOCSIWAUTH */
	NULL,/* r8192_wx_get_auth, */ /* NULL, */	/* SIOCSIWAUTH */
	r8192_wx_set_enc_ext,			/* SIOCSIWENCODEEXT */
	NULL,/* r8192_wx_get_enc_ext, *//* NULL, */			/* SIOCSIWENCODEEXT */
	NULL,			/* SIOCSIWPMKSA */
	NULL,			 /*---hole---*/

};


static const struct iw_priv_args r8192_private_args[] = {

	{
		SIOCIWFIRSTPRIV + 0x0,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "badcrc"
	},

	{
		SIOCIWFIRSTPRIV + 0x1,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "activescan"

	},
	{
		SIOCIWFIRSTPRIV + 0x2,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rawtx"
	},
	{
		SIOCIWFIRSTPRIV + 0x3,
		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "forcereset"

	}

};

static iw_handler r8192_private_handler[] = {
	r8192_wx_set_crcmon,
	r8192_wx_set_scan_type,
	r8192_wx_set_rawtx,
	r8192_wx_force_reset,
};

struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
{
	struct r8192_priv *priv = ieee80211_priv(dev);
	struct ieee80211_device *ieee = priv->ieee80211;
	struct iw_statistics *wstats = &priv->wstats;
	int tmp_level = 0;
	int tmp_qual = 0;
	int tmp_noise = 0;

	if (ieee->state < IEEE80211_LINKED) {
		wstats->qual.qual = 0;
		wstats->qual.level = 0;
		wstats->qual.noise = 0;
		wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
		return wstats;
	}

	tmp_level = (&ieee->current_network)->stats.rssi;
	tmp_qual = (&ieee->current_network)->stats.signal;
	tmp_noise = (&ieee->current_network)->stats.noise;

	wstats->qual.level = tmp_level;
	wstats->qual.qual = tmp_qual;
	wstats->qual.noise = tmp_noise;
	wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
	return wstats;
}

const struct iw_handler_def  r8192_wx_handlers_def = {
	.standard = r8192_wx_handlers,
	.num_standard = ARRAY_SIZE(r8192_wx_handlers),
	.private = r8192_private_handler,
	.num_private = ARRAY_SIZE(r8192_private_handler),
	.num_private_args = sizeof(r8192_private_args) / sizeof(struct iw_priv_args),
	.get_wireless_stats = r8192_get_wireless_stats,
	.private_args = (struct iw_priv_args *)r8192_private_args,
};