path: root/drivers/staging/rtl8192e/rtllib_softmac.c

/* IEEE 802.11 SoftMAC layer
 * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
 *
 * Mostly extracted from the rtl8180-sa2400 driver for the
 * in-kernel generic ieee802.11 stack.
 *
 * Few lines might be stolen from other part of the rtllib
 * stack. Copyright who own it's copyright
 *
 * WPA code stolen from the ipw2200 driver.
 * Copyright who own it's copyright.
 *
 * released under the GPL
 */


#include "rtllib.h"
#include "rtl_core.h"

#include <linux/random.h>
#include <linux/delay.h>
#include <linux/version.h>
#include <asm/uaccess.h>
#include "dot11d.h"

extern void _setup_timer( struct timer_list*, void*, unsigned long );
u8 rsn_authen_cipher_suite[16][4] = {
	{0x00,0x0F,0xAC,0x00},
	{0x00,0x0F,0xAC,0x01},
	{0x00,0x0F,0xAC,0x02},
	{0x00,0x0F,0xAC,0x03},
	{0x00,0x0F,0xAC,0x04},
	{0x00,0x0F,0xAC,0x05},
};

short rtllib_is_54g(struct rtllib_network *net)
{
	return ((net->rates_ex_len > 0) || (net->rates_len > 4));
}

short rtllib_is_shortslot(struct rtllib_network net)
{
	return (net.capability & WLAN_CAPABILITY_SHORT_SLOT_TIME);
}

/* returns the total length needed for pleacing the RATE MFIE
 * tag and the EXTENDED RATE MFIE tag if needed.
 * It encludes two bytes per tag for the tag itself and its len
 */
unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
{
	unsigned int rate_len = 0;

	if (ieee->modulation & RTLLIB_CCK_MODULATION)
		rate_len = RTLLIB_CCK_RATE_LEN + 2;

	if (ieee->modulation & RTLLIB_OFDM_MODULATION)

		rate_len += RTLLIB_OFDM_RATE_LEN + 2;

	return rate_len;
}

/* pleace the MFIE rate, tag to the memory (double) poined.
 * Then it updates the pointer so that
 * it points after the new MFIE tag added.
 */
void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
{
	u8 *tag = *tag_p;

	if (ieee->modulation & RTLLIB_CCK_MODULATION){
		*tag++ = MFIE_TYPE_RATES;
		*tag++ = 4;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
	}

	/* We may add an option for custom rates that specific HW might support */
	*tag_p = tag;
}

void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
{
	u8 *tag = *tag_p;

		if (ieee->modulation & RTLLIB_OFDM_MODULATION){

		*tag++ = MFIE_TYPE_RATES_EX;
		*tag++ = 8;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
		*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;

	}

	/* We may add an option for custom rates that specific HW might support */
	*tag_p = tag;
}

void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p) {
	u8 *tag = *tag_p;

	*tag++ = MFIE_TYPE_GENERIC;
	*tag++ = 7;
	*tag++ = 0x00;
	*tag++ = 0x50;
	*tag++ = 0xf2;
	*tag++ = 0x02;
	*tag++ = 0x00;
	*tag++ = 0x01;
	*tag++ = MAX_SP_Len;
	*tag_p = tag;
}

void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p) {
	u8 *tag = *tag_p;

        *tag++ = MFIE_TYPE_GENERIC;
        *tag++ = 7;
        *tag++ = 0x00;
        *tag++ = 0xe0;
        *tag++ = 0x4c;
        *tag++ = 0x01;
        *tag++ = 0x02;
        *tag++ = 0x11;
	*tag++ = 0x00;

	*tag_p = tag;
	printk(KERN_ALERT "This is enable turbo mode IE process\n");
}

void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
{
	int nh;
	nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM;

/*
 * if the queue is full but we have newer frames then
 * just overwrites the oldest.
 *
 * if (nh == ieee->mgmt_queue_tail)
 *		return -1;
 */
	ieee->mgmt_queue_head = nh;
	ieee->mgmt_queue_ring[nh] = skb;

}

struct sk_buff *dequeue_mgmt(struct rtllib_device *ieee)
{
	struct sk_buff *ret;

	if (ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
		return NULL;

	ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];

	ieee->mgmt_queue_tail =
		(ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;

	return ret;
}

void init_mgmt_queue(struct rtllib_device *ieee)
{
	ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
}


u8
MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
{
	u16	i;
	u8	QueryRate = 0;
	u8	BasicRate;


	for ( i = 0; i < ieee->current_network.rates_len; i++)
	{
		BasicRate = ieee->current_network.rates[i]&0x7F;
		if (!rtllib_is_cck_rate(BasicRate))
		{
			if (QueryRate == 0)
			{
				QueryRate = BasicRate;
			}
			else
			{
				if (BasicRate < QueryRate)
				{
					QueryRate = BasicRate;
				}
			}
		}
	}

	if (QueryRate == 0)
	{
		QueryRate = 12;
		printk("No BasicRate found!!\n");
	}
	return QueryRate;
}

u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
{
	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
	u8 rate;

	if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
		rate = 0x0c;
	else
		rate = ieee->basic_rate & 0x7f;

	if (rate == 0){
		if (ieee->mode == IEEE_A||
		   ieee->mode== IEEE_N_5G||
		   (ieee->mode== IEEE_N_24G&&!pHTInfo->bCurSuppCCK))
			rate = 0x0c;
		else
			rate = 0x02;
	}

	return rate;
}


void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);

inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
{
	unsigned long flags;
	short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
	struct rtllib_hdr_3addr  *header=
		(struct rtllib_hdr_3addr  *) skb->data;

	cb_desc *tcb_desc = (cb_desc *)(skb->cb + 8);
	spin_lock_irqsave(&ieee->lock, flags);

	/* called with 2nd param 0, no mgmt lock required */
	rtllib_sta_wakeup(ieee,0);

	if (header->frame_ctl == RTLLIB_STYPE_BEACON)
		tcb_desc->queue_index = BEACON_QUEUE;
	else
		tcb_desc->queue_index = MGNT_QUEUE;

	if (ieee->disable_mgnt_queue)
		tcb_desc->queue_index = HIGH_QUEUE;

	tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
	tcb_desc->RATRIndex = 7;
	tcb_desc->bTxDisableRateFallBack = 1;
	tcb_desc->bTxUseDriverAssingedRate = 1;
	if (single) {
		if (ieee->queue_stop){
			enqueue_mgmt(ieee,skb);
		}else{
			header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);

			if (ieee->seq_ctrl[0] == 0xFFF)
				ieee->seq_ctrl[0] = 0;
			else
				ieee->seq_ctrl[0]++;

			/* avoid watchdog triggers */
			ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
		}

		spin_unlock_irqrestore(&ieee->lock, flags);
	}else{
		spin_unlock_irqrestore(&ieee->lock, flags);
		spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);

		header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);

		if (ieee->seq_ctrl[0] == 0xFFF)
			ieee->seq_ctrl[0] = 0;
		else
			ieee->seq_ctrl[0]++;

		/* check wether the managed packet queued greater than 5 */
		if (!ieee->check_nic_enough_desc(ieee->dev,tcb_desc->queue_index)||\
				(skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0)||\
				(ieee->queue_stop) ) {
			/* insert the skb packet to the management queue */
			/* as for the completion function, it does not need
			 * to check it any more.
			 * */
			printk("%s():insert to waitqueue, queue_index:%d!\n",__func__,tcb_desc->queue_index);
			skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index], skb);
		} else {
			ieee->softmac_hard_start_xmit(skb,ieee->dev);
		}
		spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
	}
}

inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
		struct rtllib_device *ieee)
{
	short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
	struct rtllib_hdr_3addr  *header =
		(struct rtllib_hdr_3addr  *) skb->data;
	u16 fc,type,stype;
	cb_desc *tcb_desc = (cb_desc *)(skb->cb + 8);

	fc = header->frame_ctl;
	type = WLAN_FC_GET_TYPE(fc);
	stype = WLAN_FC_GET_STYPE(fc);


	if (stype != RTLLIB_STYPE_PSPOLL)
		tcb_desc->queue_index = MGNT_QUEUE;
	else
		tcb_desc->queue_index = HIGH_QUEUE;

	if (ieee->disable_mgnt_queue)
		tcb_desc->queue_index = HIGH_QUEUE;


	tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
	tcb_desc->RATRIndex = 7;
	tcb_desc->bTxDisableRateFallBack = 1;
	tcb_desc->bTxUseDriverAssingedRate = 1;
	if (single) {
		if (type != RTLLIB_FTYPE_CTL) {
			header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);

			if (ieee->seq_ctrl[0] == 0xFFF)
				ieee->seq_ctrl[0] = 0;
			else
				ieee->seq_ctrl[0]++;

		}
		/* avoid watchdog triggers */
		ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);

	} else {
		if (type != RTLLIB_FTYPE_CTL) {
			header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);

			if (ieee->seq_ctrl[0] == 0xFFF)
				ieee->seq_ctrl[0] = 0;
			else
				ieee->seq_ctrl[0]++;
		}
		ieee->softmac_hard_start_xmit(skb,ieee->dev);

	}
}

inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
{
	unsigned int len,rate_len;
	u8 *tag;
	struct sk_buff *skb;
	struct rtllib_probe_request *req;

	len = ieee->current_network.ssid_len;

	rate_len = rtllib_MFIE_rate_len(ieee);

	skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
			    2 + len + rate_len + ieee->tx_headroom);

	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	req = (struct rtllib_probe_request *) skb_put(skb,sizeof(struct rtllib_probe_request));
	req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
	req->header.duration_id = 0;

	memset(req->header.addr1, 0xff, ETH_ALEN);
	memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memset(req->header.addr3, 0xff, ETH_ALEN);

	tag = (u8 *) skb_put(skb,len+2+rate_len);

	*tag++ = MFIE_TYPE_SSID;
	*tag++ = len;
	memcpy(tag, ieee->current_network.ssid, len);
	tag += len;

	rtllib_MFIE_Brate(ieee,&tag);
	rtllib_MFIE_Grate(ieee,&tag);

	return skb;
}

struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);

void rtllib_send_beacon(struct rtllib_device *ieee)
{
	struct sk_buff *skb;
	if (!ieee->ieee_up)
		return;
	skb = rtllib_get_beacon_(ieee);

	if (skb){
		softmac_mgmt_xmit(skb, ieee);
		ieee->softmac_stats.tx_beacons++;
	}

	if (ieee->beacon_txing && ieee->ieee_up){
		mod_timer(&ieee->beacon_timer,jiffies+(MSECS(ieee->current_network.beacon_interval-5)));
	}
}


void rtllib_send_beacon_cb(unsigned long _ieee)
{
	struct rtllib_device *ieee =
		(struct rtllib_device *) _ieee;
	unsigned long flags;

	spin_lock_irqsave(&ieee->beacon_lock, flags);
	rtllib_send_beacon(ieee);
	spin_unlock_irqrestore(&ieee->beacon_lock, flags);
}

/*
 * Description:
 *              Enable network monitor mode, all rx packets will be received.
 */
void rtllib_EnableNetMonitorMode(struct net_device* dev,
                bool bInitState)
{
        struct rtllib_device* ieee = netdev_priv_rsl(dev);

        printk("========>Enter Monitor Mode\n");

        ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
}


/*
 *      Description:
 *              Disable network network monitor mode, only packets destinated to
 *              us will be received.
 */
void rtllib_DisableNetMonitorMode(struct net_device* dev,
                bool bInitState)
{
	struct rtllib_device* ieee = netdev_priv_rsl(dev);

        printk("========>Exit Monitor Mode\n");

        ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
}


/*
 * Description:
 *              This enables the specialized promiscuous mode required by Intel.
 *              In this mode, Intel intends to hear traffics from/to other STAs in the same BSS.
 *              Therefore we don't have to disable checking BSSID and we only need to allow all dest.
 *              BUT: if we enable checking BSSID then we can't recv packets from other STA.
 */
void rtllib_EnableIntelPromiscuousMode(struct net_device* dev,
                bool bInitState)
{
        bool bFilterOutNonAssociatedBSSID = false;

	struct rtllib_device* ieee = netdev_priv_rsl(dev);

        printk("========>Enter Intel Promiscuous Mode\n");

        ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
        ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID, (u8*)&bFilterOutNonAssociatedBSSID);

        ieee->bNetPromiscuousMode = true;
}


/*
 * Description:
 *              This disables the specialized promiscuous mode required by Intel.
 *              See MgntEnableIntelPromiscuousMode for detail.
 */
void rtllib_DisableIntelPromiscuousMode(struct net_device* dev,
                bool bInitState)
{
        bool bFilterOutNonAssociatedBSSID = true;

	struct rtllib_device* ieee = netdev_priv_rsl(dev);

        printk("========>Exit Intel Promiscuous Mode\n");

        ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
        ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID, (u8*)&bFilterOutNonAssociatedBSSID);

        ieee->bNetPromiscuousMode = false;
}

void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
{
	struct sk_buff *skb;
	skb = rtllib_probe_req(ieee);
	if (skb){
		softmac_mgmt_xmit(skb, ieee);
		ieee->softmac_stats.tx_probe_rq++;
	}
}


void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
{
	if (ieee->active_scan && (ieee->softmac_features &
	    IEEE_SOFTMAC_PROBERQ)) {
		rtllib_send_probe(ieee, 0);
		rtllib_send_probe(ieee, 0);
	}
}

void rtllib_softmac_hint11d_wq(void *data)
{
}

void rtllib_update_active_chan_map(struct rtllib_device *ieee)
{
	memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
}

/* this performs syncro scan blocking the caller until all channels
 * in the allowed channel map has been checked.
 */
void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
{
	short ch = 0;

	rtllib_update_active_chan_map(ieee);

	ieee->be_scan_inprogress = true;

	down(&ieee->scan_sem);

	while(1)
	{

		do {
			ch++;
			if (ch > MAX_CHANNEL_NUMBER)
				goto out; /* scan completed */
		} while(!ieee->active_channel_map[ch]);

		/* this fuction can be called in two situations
		 * 1- We have switched to ad-hoc mode and we are
		 *    performing a complete syncro scan before conclude
		 *    there are no interesting cell and to create a
		 *    new one. In this case the link state is
		 *    RTLLIB_NOLINK until we found an interesting cell.
		 *    If so the ieee8021_new_net, called by the RX path
		 *    will set the state to RTLLIB_LINKED, so we stop
		 *    scanning
		 * 2- We are linked and the root uses run iwlist scan.
		 *    So we switch to RTLLIB_LINKED_SCANNING to remember
		 *    that we are still logically linked (not interested in
		 *    new network events, despite for updating the net list,
		 *    but we are temporarly 'unlinked' as the driver shall
		 *    not filter RX frames and the channel is changing.
		 * So the only situation in witch are interested is to check
		 * if the state become LINKED because of the #1 situation
		 */

		if (ieee->state == RTLLIB_LINKED)
			goto out;
		if (ieee->sync_scan_hurryup){
			printk("============>sync_scan_hurryup out\n");
			goto out;
		}

		ieee->set_chan(ieee->dev, ch);
		if (ieee->active_channel_map[ch] == 1)
		rtllib_send_probe_requests(ieee, 0);

		/* this prevent excessive time wait when we
		 * need to wait for a syncro scan to end..
		 */
		msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
	}
out:
	ieee->actscanning = false;
	ieee->sync_scan_hurryup = 0;

	if (ieee->state >= RTLLIB_LINKED){
		if (IS_DOT11D_ENABLE(ieee))
			DOT11D_ScanComplete(ieee);
	}
	up(&ieee->scan_sem);

	ieee->be_scan_inprogress = false;

	{
	union iwreq_data wrqu;
	memset(&wrqu, 0, sizeof(wrqu));
	wireless_send_event(ieee->dev,SIOCGIWSCAN,&wrqu,NULL);
	}
}

void rtllib_softmac_scan_wq(void *data)
{
	struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, softmac_scan_wq);
	u8 last_channel = ieee->current_network.channel;

	rtllib_update_active_chan_map(ieee);

	if (!ieee->ieee_up)
		return;
	if (rtllib_act_scanning(ieee,true) == true)
		return;

	down(&ieee->scan_sem);

	if (ieee->eRFPowerState == eRfOff)
	{
		printk("======>%s():rf state is eRfOff, return\n",__func__);
		goto out1;
	}

	do{
		ieee->current_network.channel =
			(ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
		if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER)
		{
			if (!ieee->active_channel_map[ieee->current_network.channel])
				ieee->current_network.channel = 6;
			goto out; /* no good chans */
		}
	} while(!ieee->active_channel_map[ieee->current_network.channel]);

	if (ieee->scanning_continue == 0 )
		goto out;

	ieee->set_chan(ieee->dev, ieee->current_network.channel);

	if (ieee->active_channel_map[ieee->current_network.channel] == 1)
	rtllib_send_probe_requests(ieee, 0);

	queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq, MSECS(RTLLIB_SOFTMAC_SCAN_TIME));

	up(&ieee->scan_sem);
	return;

out:
	if (IS_DOT11D_ENABLE(ieee))
		DOT11D_ScanComplete(ieee);
	ieee->current_network.channel = last_channel;

out1:
	ieee->actscanning = false;
	ieee->scan_watch_dog = 0;
	ieee->scanning_continue = 0;
	up(&ieee->scan_sem);
}



void rtllib_beacons_start(struct rtllib_device *ieee)
{
	unsigned long flags;
	spin_lock_irqsave(&ieee->beacon_lock,flags);

	ieee->beacon_txing = 1;
	rtllib_send_beacon(ieee);

	spin_unlock_irqrestore(&ieee->beacon_lock,flags);
}

void rtllib_beacons_stop(struct rtllib_device *ieee)
{
	unsigned long flags;

	spin_lock_irqsave(&ieee->beacon_lock,flags);

	ieee->beacon_txing = 0;
	del_timer_sync(&ieee->beacon_timer);

	spin_unlock_irqrestore(&ieee->beacon_lock,flags);

}


void rtllib_stop_send_beacons(struct rtllib_device *ieee)
{
	if (ieee->stop_send_beacons)
		ieee->stop_send_beacons(ieee->dev);
	if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
		rtllib_beacons_stop(ieee);
}


void rtllib_start_send_beacons(struct rtllib_device *ieee)
{
	if (ieee->start_send_beacons)
		ieee->start_send_beacons(ieee->dev);
	if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
		rtllib_beacons_start(ieee);
}


void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
{
	down(&ieee->scan_sem);
	ieee->scan_watch_dog = 0;
	if (ieee->scanning_continue == 1) {
		ieee->scanning_continue = 0;
		ieee->actscanning = 0;

		cancel_delayed_work(&ieee->softmac_scan_wq);
	}

	up(&ieee->scan_sem);
}

void rtllib_stop_scan(struct rtllib_device *ieee)
{
	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
		rtllib_softmac_stop_scan(ieee);
	}else{
		if (ieee->rtllib_stop_hw_scan)
			ieee->rtllib_stop_hw_scan(ieee->dev);
	}
}

void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
{
	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
			ieee->sync_scan_hurryup = 1;
	}else{
		if (ieee->rtllib_stop_hw_scan)
			ieee->rtllib_stop_hw_scan(ieee->dev);
	}
}

bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
{
	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
		if (sync_scan){
			return ieee->be_scan_inprogress;
		}else{
			return (ieee->actscanning ||ieee->be_scan_inprogress);
		}
	}else{
		return test_bit(STATUS_SCANNING, &ieee->status);
	}
}

/* called with ieee->lock held */
void rtllib_start_scan(struct rtllib_device *ieee)
{
	RT_TRACE(COMP_DBG, "===>%s()\n",__func__);
	if (ieee->rtllib_ips_leave_wq != NULL)
	ieee->rtllib_ips_leave_wq(ieee->dev);


	if (IS_DOT11D_ENABLE(ieee) )
	{
		if (IS_COUNTRY_IE_VALID(ieee))
		{
			RESET_CIE_WATCHDOG(ieee);
		}
	}
	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
		if (ieee->scanning_continue == 0) {
			ieee->actscanning = true;
			ieee->scanning_continue = 1;
			queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq, 0);
		}
	} else {
		if (ieee->rtllib_start_hw_scan)
			ieee->rtllib_start_hw_scan(ieee->dev);
	}

}

/* called with wx_sem held */
void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
{
	if (IS_DOT11D_ENABLE(ieee) )
	{
		if (IS_COUNTRY_IE_VALID(ieee))
		{
			RESET_CIE_WATCHDOG(ieee);
		}
	}
	ieee->sync_scan_hurryup = 0;
	if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
		rtllib_softmac_scan_syncro(ieee, is_mesh);
	}else{
		if (ieee->rtllib_start_hw_scan)
			ieee->rtllib_start_hw_scan(ieee->dev);
	}

}

inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
	struct rtllib_device *ieee, int challengelen,u8 * daddr)
{
	struct sk_buff *skb;
	struct rtllib_authentication *auth;
	int  len = 0;
	len = sizeof(struct rtllib_authentication) + challengelen + ieee->tx_headroom + 4;
	skb = dev_alloc_skb(len);

	if (!skb) return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	auth = (struct rtllib_authentication *)
		skb_put(skb, sizeof(struct rtllib_authentication));

	auth->header.frame_ctl = RTLLIB_STYPE_AUTH;
	if (challengelen) auth->header.frame_ctl |= RTLLIB_FCTL_WEP;

	auth->header.duration_id = 0x013a;
		memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
	memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
	if (ieee->auth_mode == 0)
		auth->algorithm = WLAN_AUTH_OPEN;
	else if (ieee->auth_mode == 1)
		auth->algorithm = WLAN_AUTH_SHARED_KEY;
	else if (ieee->auth_mode == 2)
		auth->algorithm = WLAN_AUTH_OPEN;
	auth->transaction = cpu_to_le16(ieee->associate_seq);
	ieee->associate_seq++;

	auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);

	return skb;

}

void constructWMMIE(u8* wmmie, u8* wmm_len,u8 oui_subtype)
{
	u8	szQoSOUI[] ={221, 0, 0x00, 0x50, 0xf2, 0x02, 0, 1};

	if (oui_subtype == OUI_SUBTYPE_QOS_CAPABI)
	{
		szQoSOUI[0] = 46;
		szQoSOUI[1] = *wmm_len;
		memcpy(wmmie,szQoSOUI,3);
		*wmm_len = 3;
	}
	else
	{
		szQoSOUI[1] = *wmm_len + 6;
		szQoSOUI[6] = oui_subtype;
		memcpy(wmmie, szQoSOUI, 8);
		*(wmmie+8) = 0;
		*wmm_len = 9;
	}
}

static struct sk_buff* rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
{
	u8 *tag;
	int beacon_size;
	struct rtllib_probe_response *beacon_buf;
	struct sk_buff *skb = NULL;
	int encrypt;
	int atim_len,erp_len;
	struct rtllib_crypt_data* crypt;

	char *ssid = ieee->current_network.ssid;
	int ssid_len = ieee->current_network.ssid_len;
	int rate_len = ieee->current_network.rates_len+2;
	int rate_ex_len = ieee->current_network.rates_ex_len;
	int wpa_ie_len = ieee->wpa_ie_len;
	u8 erpinfo_content = 0;

	u8* tmp_ht_cap_buf = NULL;
	u8 tmp_ht_cap_len = 0;
	u8* tmp_ht_info_buf = NULL;
	u8 tmp_ht_info_len = 0;
	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
	u8* tmp_generic_ie_buf = NULL;
	u8 tmp_generic_ie_len = 0;

	if (rate_ex_len > 0)
		rate_ex_len+=2;

	if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
		atim_len = 4;
	else
		atim_len = 0;

      if ((ieee->current_network.mode == IEEE_G)
		||( ieee->current_network.mode == IEEE_N_24G && ieee->pHTInfo->bCurSuppCCK)) {
		erp_len = 3;
		erpinfo_content = 0;
		if (ieee->current_network.buseprotection)
			erpinfo_content |= ERP_UseProtection;
	}
	else
		erp_len = 0;

	crypt = ieee->crypt[ieee->tx_keyidx];
	encrypt = ieee->host_encrypt && crypt && crypt->ops &&
		((0 == strcmp(crypt->ops->name, "WEP") || wpa_ie_len));
	if (ieee->pHTInfo->bCurrentHTSupport){
		tmp_ht_cap_buf =(u8*) &(ieee->pHTInfo->SelfHTCap);
		tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
		tmp_ht_info_buf =(u8*) &(ieee->pHTInfo->SelfHTInfo);
		tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
		HTConstructCapabilityElement(ieee, tmp_ht_cap_buf, &tmp_ht_cap_len,encrypt, false);
		HTConstructInfoElement(ieee,tmp_ht_info_buf,&tmp_ht_info_len, encrypt);


		if (pHTInfo->bRegRT2RTAggregation)
		{
			tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
			tmp_generic_ie_len = sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
			HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf, &tmp_generic_ie_len);
		}
	}

	beacon_size = sizeof(struct rtllib_probe_response)+2+
		ssid_len
		+3
		+rate_len
		+rate_ex_len
		+atim_len
		+erp_len
		+wpa_ie_len
		+ieee->tx_headroom;
	skb = dev_alloc_skb(beacon_size);
	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	beacon_buf = (struct rtllib_probe_response*) skb_put(skb, (beacon_size - ieee->tx_headroom));
	memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
	memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);

	beacon_buf->header.duration_id = 0;
	beacon_buf->beacon_interval =
		cpu_to_le16(ieee->current_network.beacon_interval);
	beacon_buf->capability =
		cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS);
	beacon_buf->capability |=
		cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_SHORT_PREAMBLE);

	if (ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT_TIME))
		cpu_to_le16((beacon_buf->capability |= WLAN_CAPABILITY_SHORT_SLOT_TIME));

	crypt = ieee->crypt[ieee->tx_keyidx];
	if (encrypt)
		beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);


	beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
	beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
	beacon_buf->info_element[0].len = ssid_len;

	tag = (u8*) beacon_buf->info_element[0].data;

	memcpy(tag, ssid, ssid_len);

	tag += ssid_len;

	*(tag++) = MFIE_TYPE_RATES;
	*(tag++) = rate_len-2;
	memcpy(tag,ieee->current_network.rates,rate_len-2);
	tag+=rate_len-2;

	*(tag++) = MFIE_TYPE_DS_SET;
	*(tag++) = 1;
	*(tag++) = ieee->current_network.channel;

	if (atim_len){
	u16 val16;
		*(tag++) = MFIE_TYPE_IBSS_SET;
		*(tag++) = 2;
		 val16 = cpu_to_le16(ieee->current_network.atim_window);
		memcpy((u8 *)tag, (u8 *)&val16, 2);
		tag+=2;
	}

	if (erp_len){
		*(tag++) = MFIE_TYPE_ERP;
		*(tag++) = 1;
		*(tag++) = erpinfo_content;
	}
	if (rate_ex_len){
		*(tag++) = MFIE_TYPE_RATES_EX;
		*(tag++) = rate_ex_len-2;
		memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2);
		tag+=rate_ex_len-2;
	}

	if (wpa_ie_len)
	{
		if (ieee->iw_mode == IW_MODE_ADHOC)
		{
			memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
		}
		memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
		tag += ieee->wpa_ie_len;
	}

	return skb;
}

struct sk_buff* rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
{
	struct sk_buff *skb;
	u8* tag;

	struct rtllib_crypt_data* crypt;
	struct rtllib_assoc_response_frame *assoc;
	short encrypt;

	unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
	int len = sizeof(struct rtllib_assoc_response_frame) + rate_len + ieee->tx_headroom;

	skb = dev_alloc_skb(len);

	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	assoc = (struct rtllib_assoc_response_frame *)
		skb_put(skb,sizeof(struct rtllib_assoc_response_frame));

	assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
	memcpy(assoc->header.addr1, dest,ETH_ALEN);
	memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
		WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);


	if (ieee->short_slot)
		assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);

	if (ieee->host_encrypt)
		crypt = ieee->crypt[ieee->tx_keyidx];
	else
		crypt = NULL;

	encrypt = ( crypt && crypt->ops);

	if (encrypt)
		assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);

	assoc->status = 0;
	assoc->aid = cpu_to_le16(ieee->assoc_id);
	if (ieee->assoc_id == 0x2007)
		ieee->assoc_id=0;
	else
		ieee->assoc_id++;

	tag = (u8*) skb_put(skb, rate_len);
	rtllib_MFIE_Brate(ieee, &tag);
	rtllib_MFIE_Grate(ieee, &tag);

	return skb;
}

struct sk_buff* rtllib_auth_resp(struct rtllib_device *ieee,int status, u8 *dest)
{
	struct sk_buff *skb = NULL;
	struct rtllib_authentication *auth;
	int len = ieee->tx_headroom + sizeof(struct rtllib_authentication)+1;
	skb = dev_alloc_skb(len);
	if (!skb)
		return NULL;

	skb->len = sizeof(struct rtllib_authentication);

	skb_reserve(skb, ieee->tx_headroom);

	auth = (struct rtllib_authentication *)
		skb_put(skb, sizeof(struct rtllib_authentication));

	auth->status = cpu_to_le16(status);
	auth->transaction = cpu_to_le16(2);
	auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);

	memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(auth->header.addr1, dest, ETH_ALEN);
	auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
	return skb;


}

struct sk_buff* rtllib_null_func(struct rtllib_device *ieee,short pwr)
{
	struct sk_buff *skb;
	struct rtllib_hdr_3addr* hdr;

	skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	hdr = (struct rtllib_hdr_3addr*)skb_put(skb,sizeof(struct rtllib_hdr_3addr));

	memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
	memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);

	hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
		RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
		(pwr ? RTLLIB_FCTL_PM:0));

	return skb;


}

struct sk_buff* rtllib_pspoll_func(struct rtllib_device *ieee)
{
	struct sk_buff *skb;
	struct rtllib_pspoll_hdr* hdr;

	skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	hdr = (struct rtllib_pspoll_hdr*)skb_put(skb,sizeof(struct rtllib_pspoll_hdr));

	memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN);
	memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN);

	hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
	hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL |RTLLIB_STYPE_PSPOLL | RTLLIB_FCTL_PM);

	return skb;

}

void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8* dest)
{
	struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);

	if (buf)
		softmac_mgmt_xmit(buf, ieee);
}


void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8* dest)
{
	struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);

	if (buf)
		softmac_mgmt_xmit(buf, ieee);
}


void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
{

	struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
	if (buf)
		softmac_mgmt_xmit(buf, ieee);
}


inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
{
	int i = 0;

	do
	{
		if ((ieee->PMKIDList[i].bUsed) && (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
		{
			break;
		}
		else
		{
			i++;
		}
	} while (i < NUM_PMKID_CACHE);

	if (i == NUM_PMKID_CACHE)
	{
		i = -1;
	}
	else
	{
	}

	return (i);

}


inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,struct rtllib_device *ieee)
{
	struct sk_buff *skb;

	struct rtllib_assoc_request_frame *hdr;
	u8 *tag, *ies;
	int i;
	u8* ht_cap_buf = NULL;
	u8 ht_cap_len=0;
	u8* realtek_ie_buf=NULL;
	u8 realtek_ie_len=0;
	int wpa_ie_len= ieee->wpa_ie_len;
	int wps_ie_len = ieee->wps_ie_len;
	unsigned int ckip_ie_len=0;
	unsigned int ccxrm_ie_len=0;
	unsigned int cxvernum_ie_len=0;
	struct rtllib_crypt_data* crypt;
	int encrypt;
	int	PMKCacheIdx;

	unsigned int rate_len = (beacon->rates_len?(beacon->rates_len+2):0) + (beacon->rates_ex_len?(beacon->rates_ex_len)+2:0);

	unsigned int wmm_info_len = beacon->qos_data.supported?9:0;
	unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;

	int len = 0;
	crypt = ieee->crypt[ieee->tx_keyidx];
	if (crypt != NULL) {
		encrypt = ieee->host_encrypt && crypt && crypt->ops && ((0 == strcmp(crypt->ops->name,"WEP") || wpa_ie_len));
	} else {
		encrypt = 0;
	}

	if ((ieee->rtllib_ap_sec_type && (ieee->rtllib_ap_sec_type(ieee)&SEC_ALG_TKIP)) ||(ieee->bForcedBgMode == true))
	{
		ieee->pHTInfo->bEnableHT = 0;
		ieee->mode = WIRELESS_MODE_G;
	}

	if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
	{
		ht_cap_buf = (u8*)&(ieee->pHTInfo->SelfHTCap);
		ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
		HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len, encrypt, true);
		if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
			realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
			realtek_ie_len = sizeof( ieee->pHTInfo->szRT2RTAggBuffer);
			HTConstructRT2RTAggElement(ieee, realtek_ie_buf, &realtek_ie_len);

		}
	}

	if (beacon->bCkipSupported)
	{
		ckip_ie_len = 30+2;
	}
	if (beacon->bCcxRmEnable)
	{
		ccxrm_ie_len = 6+2;
	}
	if ( beacon->BssCcxVerNumber >= 2 )
	{
		cxvernum_ie_len = 5+2;
	}

	PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
	if (PMKCacheIdx >= 0)
	{
		wpa_ie_len += 18;
		printk("[PMK cache]: WPA2 IE length: %x\n", wpa_ie_len);
	}
	len = sizeof(struct rtllib_assoc_request_frame)+ 2
		+ beacon->ssid_len
		+ rate_len
		+ wpa_ie_len
		+ wps_ie_len
		+ wmm_info_len
		+ turbo_info_len
                + ht_cap_len
		+ realtek_ie_len
		+ ckip_ie_len
		+ ccxrm_ie_len
		+ cxvernum_ie_len
		+ ieee->tx_headroom;

	skb = dev_alloc_skb(len);

	if (!skb)
		return NULL;

	skb_reserve(skb, ieee->tx_headroom);

	hdr = (struct rtllib_assoc_request_frame *)
		skb_put(skb, sizeof(struct rtllib_assoc_request_frame)+2);


	hdr->header.frame_ctl = RTLLIB_STYPE_ASSOC_REQ;
	hdr->header.duration_id= 37;
	memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
	memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);

	memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);

	hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
	if (beacon->capability & WLAN_CAPABILITY_PRIVACY )
		hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);

	if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
		hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);

	if (ieee->short_slot && (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
		hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);


	hdr->listen_interval = beacon->listen_interval;

	hdr->info_element[0].id = MFIE_TYPE_SSID;

	hdr->info_element[0].len = beacon->ssid_len;
	tag = skb_put(skb, beacon->ssid_len);
	memcpy(tag, beacon->ssid, beacon->ssid_len);

	tag = skb_put(skb, rate_len);

	if (beacon->rates_len){
		*tag++ = MFIE_TYPE_RATES;
		*tag++ = beacon->rates_len;
		for (i=0;i<beacon->rates_len;i++){
			*tag++ = beacon->rates[i];
		}
	}

	if (beacon->rates_ex_len){
		*tag++ = MFIE_TYPE_RATES_EX;
		*tag++ = beacon->rates_ex_len;
		for (i=0;i<beacon->rates_ex_len;i++){
			*tag++ = beacon->rates_ex[i];
		}
	}

	if ( beacon->bCkipSupported )
	{
		static u8	AironetIeOui[] = {0x00, 0x01, 0x66};
		u8	CcxAironetBuf[30];
		OCTET_STRING	osCcxAironetIE;

		memset(CcxAironetBuf, 0,30);
		osCcxAironetIE.Octet = CcxAironetBuf;
		osCcxAironetIE.Length = sizeof(CcxAironetBuf);
		memcpy(osCcxAironetIE.Octet, AironetIeOui, sizeof(AironetIeOui));

		osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=  (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC) ;
		tag = skb_put(skb, ckip_ie_len);
		*tag++ = MFIE_TYPE_AIRONET;
		*tag++ = osCcxAironetIE.Length;
		memcpy(tag,osCcxAironetIE.Octet,osCcxAironetIE.Length);
		tag += osCcxAironetIE.Length;
	}

	if (beacon->bCcxRmEnable)
	{
		static u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01, 0x00};
		OCTET_STRING osCcxRmCap;

		osCcxRmCap.Octet = CcxRmCapBuf;
		osCcxRmCap.Length = sizeof(CcxRmCapBuf);
		tag = skb_put(skb,ccxrm_ie_len);
		*tag++ = MFIE_TYPE_GENERIC;
		*tag++ = osCcxRmCap.Length;
		memcpy(tag,osCcxRmCap.Octet,osCcxRmCap.Length);
		tag += osCcxRmCap.Length;
	}

	if ( beacon->BssCcxVerNumber >= 2 )
	{
		u8			CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
		OCTET_STRING	osCcxVerNum;
		CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
		osCcxVerNum.Octet = CcxVerNumBuf;
		osCcxVerNum.Length = sizeof(CcxVerNumBuf);
		tag = skb_put(skb,cxvernum_ie_len);
		*tag++ = MFIE_TYPE_GENERIC;
		*tag++ = osCcxVerNum.Length;
		memcpy(tag,osCcxVerNum.Octet,osCcxVerNum.Length);
		tag += osCcxVerNum.Length;
	}
	if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
		if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC)
		{
			tag = skb_put(skb, ht_cap_len);
			*tag++ = MFIE_TYPE_HT_CAP;
			*tag++ = ht_cap_len - 2;
			memcpy(tag, ht_cap_buf,ht_cap_len -2);
			tag += ht_cap_len -2;
		}
	}


	if (wpa_ie_len){
		tag = skb_put(skb, ieee->wpa_ie_len);
		memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);

		if (PMKCacheIdx >= 0)
		{
			tag = skb_put(skb, 18);
			*tag = 1;
			*(tag + 1) = 0;
			memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID, 16);
		}
	}
	if (wmm_info_len) {
		tag = skb_put(skb,wmm_info_len);
		rtllib_WMM_Info(ieee, &tag);
	}

	if (wps_ie_len && ieee->wps_ie) {
		tag = skb_put(skb, wps_ie_len);
		memcpy(tag, ieee->wps_ie, wps_ie_len);
	}

	tag = skb_put(skb,turbo_info_len);
        if (turbo_info_len)
                rtllib_TURBO_Info(ieee, &tag);

	if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT){
		if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC)
		{
			tag = skb_put(skb, ht_cap_len);
			*tag++ = MFIE_TYPE_GENERIC;
			*tag++ = ht_cap_len - 2;
			memcpy(tag, ht_cap_buf,ht_cap_len - 2);
			tag += ht_cap_len -2;
		}

		if (ieee->pHTInfo->bCurrentRT2RTAggregation){
			tag = skb_put(skb, realtek_ie_len);
			*tag++ = MFIE_TYPE_GENERIC;
			*tag++ = realtek_ie_len - 2;
			memcpy(tag, realtek_ie_buf,realtek_ie_len -2 );
		}
	}

	if (ieee->assocreq_ies){
		kfree(ieee->assocreq_ies);
		ieee->assocreq_ies = NULL;
	}
	ies = &(hdr->info_element[0].id);
	ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
	ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
	if (ieee->assocreq_ies)
		memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
	else{
		printk("%s()Warning: can't alloc memory for assocreq_ies\n", __func__);
		ieee->assocreq_ies_len = 0;
	}

	return skb;
}

void rtllib_associate_abort(struct rtllib_device *ieee)
{

	unsigned long flags;
	spin_lock_irqsave(&ieee->lock, flags);

	ieee->associate_seq++;

	/* don't scan, and avoid to have the RX path possibily
	 * try again to associate. Even do not react to AUTH or
	 * ASSOC response. Just wait for the retry wq to be scheduled.
	 * Here we will check if there are good nets to associate
	 * with, so we retry or just get back to NO_LINK and scanning
	 */
	if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING){
		RTLLIB_DEBUG_MGMT("Authentication failed\n");
		ieee->softmac_stats.no_auth_rs++;
	}else{
		RTLLIB_DEBUG_MGMT("Association failed\n");
		ieee->softmac_stats.no_ass_rs++;
	}

	ieee->state = RTLLIB_ASSOCIATING_RETRY;

	queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq, \
                           RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);

	spin_unlock_irqrestore(&ieee->lock, flags);
}

void rtllib_associate_abort_cb(unsigned long dev)
{
	rtllib_associate_abort((struct rtllib_device *) dev);
}

void rtllib_associate_step1(struct rtllib_device *ieee,u8 * daddr)
{
	struct rtllib_network *beacon = &ieee->current_network;
	struct sk_buff *skb;

	RTLLIB_DEBUG_MGMT("Stopping scan\n");

	ieee->softmac_stats.tx_auth_rq++;

	skb=rtllib_authentication_req(beacon, ieee, 0,daddr);

	if (!skb)
		rtllib_associate_abort(ieee);
	else{
		ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING ;
		RTLLIB_DEBUG_MGMT("Sending authentication request\n");
		softmac_mgmt_xmit(skb, ieee);
		if (!timer_pending(&ieee->associate_timer)){
			ieee->associate_timer.expires = jiffies + (HZ / 2);
			add_timer(&ieee->associate_timer);
		}
	}
}

void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int chlen)
{
	u8 *c;
	struct sk_buff *skb;
	struct rtllib_network *beacon = &ieee->current_network;

	ieee->associate_seq++;
	ieee->softmac_stats.tx_auth_rq++;

	skb = rtllib_authentication_req(beacon, ieee, chlen+2,beacon->bssid);

	if (!skb)
		rtllib_associate_abort(ieee);
	else{
		c = skb_put(skb, chlen+2);
		*(c++) = MFIE_TYPE_CHALLENGE;
		*(c++) = chlen;
		memcpy(c, challenge, chlen);

		RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");

		rtllib_encrypt_fragment(ieee, skb, sizeof(struct rtllib_hdr_3addr  ));

		softmac_mgmt_xmit(skb, ieee);
		mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
	}
	kfree(challenge);
}

void rtllib_associate_step2(struct rtllib_device *ieee)
{
	struct sk_buff* skb;
	struct rtllib_network *beacon = &ieee->current_network;

	del_timer_sync(&ieee->associate_timer);

	RTLLIB_DEBUG_MGMT("Sending association request\n");

	ieee->softmac_stats.tx_ass_rq++;
	skb=rtllib_association_req(beacon, ieee);
	if (!skb)
		rtllib_associate_abort(ieee);
	else{
		softmac_mgmt_xmit(skb, ieee);
		mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
	}
}

#define CANCELLED  2
void rtllib_associate_complete_wq(void *data)
{
	struct rtllib_device *ieee = (struct rtllib_device *)container_of_work_rsl(data, struct rtllib_device, associate_complete_wq);
	PRT_POWER_SAVE_CONTROL pPSC = (PRT_POWER_SAVE_CONTROL)(&(ieee->PowerSaveControl));
	printk(KERN_INFO "Associated successfully\n");
	if (ieee->is_silent_reset == 0){
            printk("normal associate\n");
            notify_wx_assoc_event(ieee);
        }

	netif_carrier_on(ieee->dev);
	ieee->is_roaming = false;
	if (rtllib_is_54g(&ieee->current_network) &&
		(ieee->modulation & RTLLIB_OFDM_MODULATION)){

		ieee->rate = 108;
		printk(KERN_INFO"Using G rates:%d\n", ieee->rate);
	}else{
		ieee->rate = 22;
		ieee->SetWirelessMode(ieee->dev, IEEE_B);
		printk(KERN_INFO"Using B rates:%d\n", ieee->rate);
	}
	if (ieee->pHTInfo->bCurrentHTSupport&&ieee->pHTInfo->bEnableHT)
	{
		printk("Successfully associated, ht enabled\n");
		HTOnAssocRsp(ieee);
	} else {
		printk("Successfully associated, ht not enabled(%d, %d)\n",
				ieee->pHTInfo->bCurrentHTSupport, ieee->pHTInfo->bEnableHT);
		memset(ieee->dot11HTOperationalRateSet, 0, 16);
	}
	ieee->LinkDetectInfo.SlotNum = 2 * (1 + ieee->current_network.beacon_interval/500);
	if (ieee->LinkDetectInfo.NumRecvBcnInPeriod==0||ieee->LinkDetectInfo.NumRecvDataInPeriod==0 )
	{
		ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
		ieee->LinkDetectInfo.NumRecvDataInPeriod= 1;
	}
	pPSC->LpsIdleCount = 0;
	ieee->link_change(ieee->dev);

        if (ieee->is_silent_reset == 1) {
		printk("silent reset associate\n");
		ieee->is_silent_reset = 0;
        }

	if (ieee->data_hard_resume)
		ieee->data_hard_resume(ieee->dev);

}

static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
{
	char *buf;
	size_t len;
	int i;
	union iwreq_data wrqu;

		return;


	buf = kmalloc(50 + 2 * (ieee->assocreq_ies_len + ieee->assocresp_ies_len), GFP_ATOMIC);
	if (!buf)
		return;

	len = sprintf(buf, "ASSOCINFO(");
	if (ieee->assocreq_ies) {
		len += sprintf(buf + len, "ReqIEs=");
		for (i = 0; i < ieee->assocreq_ies_len; i++) {
			len += sprintf(buf + len, "%02x", ieee->assocreq_ies[i]);
		}
	}
	if (ieee->assocresp_ies) {
		if (ieee->assocreq_ies)
			len += sprintf(buf + len, " ");
		len += sprintf(buf + len, "RespIEs=");
		for (i = 0; i < ieee->assocresp_ies_len; i++) {
			len += sprintf(buf + len, "%02x", ieee->assocresp_ies[i]);
		}
	}
	len += sprintf(buf + len, ")");

	if (len > IW_CUSTOM_MAX) {
		len = sprintf(buf, "ASSOCRESPIE=");
		for (i = 0; i < ieee->assocresp_ies_len; i++) {
			len += sprintf(buf + len, "%02x", ieee->assocresp_ies[i]);
		}
	}

	if (len <= IW_CUSTOM_MAX) {
		memset(&wrqu, 0, sizeof(wrqu));
		wrqu.data.length = len;
		wireless_send_event(ieee->dev, IWEVCUSTOM, &wrqu, buf);
	}

	kfree(buf);
}

void rtllib_associate_complete(struct rtllib_device *ieee)
{
	del_timer_sync(&ieee->associate_timer);

	ieee->state = RTLLIB_LINKED;
	rtllib_sta_send_associnfo(ieee);

	queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
}

void rtllib_associate_procedure_wq(void *data)
{
	struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, associate_procedure_wq);
	rtllib_stop_scan_syncro(ieee);
	if (ieee->rtllib_ips_leave != NULL)
		ieee->rtllib_ips_leave(ieee->dev);
	down(&ieee->wx_sem);

	if (ieee->data_hard_stop)
		ieee->data_hard_stop(ieee->dev);

	rtllib_stop_scan(ieee);
	RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__, ieee->current_network.channel);
	HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
	if (ieee->eRFPowerState == eRfOff)
	{
            RT_TRACE(COMP_DBG, "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",__func__);
		if (ieee->rtllib_ips_leave_wq != NULL)
			ieee->rtllib_ips_leave_wq(ieee->dev);
		up(&ieee->wx_sem);
		return;
	}
	ieee->associate_seq = 1;

	rtllib_associate_step1(ieee, ieee->current_network.bssid);

	up(&ieee->wx_sem);
}

inline void rtllib_softmac_new_net(struct rtllib_device *ieee, struct rtllib_network *net)
{
	u8 tmp_ssid[IW_ESSID_MAX_SIZE+1];
	int tmp_ssid_len = 0;

	short apset,ssidset,ssidbroad,apmatch,ssidmatch;

	/* we are interested in new new only if we are not associated
	 * and we are not associating / authenticating
	 */
	if (ieee->state != RTLLIB_NOLINK)
		return;

	if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_ESS))
		return;

	if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
		return;

	if ((ieee->iw_mode == IW_MODE_ADHOC) && (net->channel > ieee->ibss_maxjoin_chal)) {
		return;
	}
	if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC)
		{
		/* if the user specified the AP MAC, we need also the essid
		 * This could be obtained by beacons or, if the network does not
		 * broadcast it, it can be put manually.
		 */
		apset = ieee->wap_set;
		ssidset = ieee->ssid_set;
		ssidbroad =  !(net->ssid_len == 0 || net->ssid[0]== '\0');
		apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
		if (!ssidbroad){
			ssidmatch = (ieee->current_network.ssid_len == net->hidden_ssid_len)&&\
					(!strncmp(ieee->current_network.ssid, net->hidden_ssid, net->hidden_ssid_len));
			if (net->hidden_ssid_len > 0)
                        {
			        strncpy(net->ssid, net->hidden_ssid, net->hidden_ssid_len);
			        net->ssid_len = net->hidden_ssid_len;
                                ssidbroad = 1;
                        }
		}
		else
			ssidmatch = (ieee->current_network.ssid_len == net->ssid_len)&&\
					(!strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));

		if (	/* if the user set the AP check if match.
		         * if the network does not broadcast essid we check the user supplyed ANY essid
			 * if the network does broadcast and the user does not set essid it is OK
			 * if the network does broadcast and the user did set essid chech if essid match
			 */
			( apset && apmatch &&
				((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) )
			/* if the ap is not set, check that the user set the bssid
			 * and the network does bradcast and that those two bssid matches
			 */
			 ||  (!apset && ssidset && ssidbroad && ssidmatch) || (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)
			){
				/* if the essid is hidden replace it with the
				* essid provided by the user.
				*/
				if (!ssidbroad){
					strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
					tmp_ssid_len = ieee->current_network.ssid_len;
				}
				memcpy(&ieee->current_network, net, sizeof(struct rtllib_network));
				if (!ssidbroad){
					strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
					ieee->current_network.ssid_len = tmp_ssid_len;
				}
				printk(KERN_INFO"Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",ieee->current_network.ssid,ieee->current_network.channel, ieee->current_network.qos_data.supported, ieee->pHTInfo->bEnableHT, ieee->current_network.bssht.bdSupportHT, ieee->current_network.mode, ieee->current_network.flags);

				if ((rtllib_act_scanning(ieee, false)) && !(ieee->softmac_features & IEEE_SOFTMAC_SCAN)){
					rtllib_stop_scan_syncro(ieee);
				}

				ieee->hwscan_ch_bk = ieee->current_network.channel;
				HTResetIOTSetting(ieee->pHTInfo);
				ieee->wmm_acm = 0;
				if (ieee->iw_mode == IW_MODE_INFRA) {
					/* Join the network for the first time */
					ieee->AsocRetryCount = 0;
					if ((ieee->current_network.qos_data.supported == 1) &&
					   ieee->current_network.bssht.bdSupportHT)
						HTResetSelfAndSavePeerSetting(ieee, &(ieee->current_network));
					else
						ieee->pHTInfo->bCurrentHTSupport = false;

					ieee->state = RTLLIB_ASSOCIATING;
					if (ieee->LedControlHandler != NULL)
					        ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK);
					queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 0);
				} else {
					if (rtllib_is_54g(&ieee->current_network) &&
						(ieee->modulation & RTLLIB_OFDM_MODULATION)){
						ieee->rate = 108;
						ieee->SetWirelessMode(ieee->dev, IEEE_G);
						printk(KERN_INFO"Using G rates\n");
					}else{
						ieee->rate = 22;
						ieee->SetWirelessMode(ieee->dev, IEEE_B);
						printk(KERN_INFO"Using B rates\n");
					}
					memset(ieee->dot11HTOperationalRateSet, 0, 16);
					ieee->state = RTLLIB_LINKED;
				}

		}
	}

}

void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
{
	unsigned long flags;
	struct rtllib_network *target;

	spin_lock_irqsave(&ieee->lock, flags);

	list_for_each_entry(target, &ieee->network_list, list) {

		/* if the state become different that NOLINK means
		 * we had found what we are searching for
		 */

		if (ieee->state != RTLLIB_NOLINK)
			break;

		if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
		rtllib_softmac_new_net(ieee, target);
	}

	spin_unlock_irqrestore(&ieee->lock, flags);

}


static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
{
	struct rtllib_authentication *a;
	u8 *t;
	if (skb->len <  (sizeof(struct rtllib_authentication)-sizeof(struct rtllib_info_element))){
		RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
		return 0xcafe;
	}
	*challenge = NULL;
	a = (struct rtllib_authentication*) skb->data;
	if (skb->len > (sizeof(struct rtllib_authentication) +3)){
		t = skb->data + sizeof(struct rtllib_authentication);

		if (*(t++) == MFIE_TYPE_CHALLENGE){
			*chlen = *(t++);
			*challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
			memcpy(*challenge, t, *chlen);
		}
	}

	return cpu_to_le16(a->status);

}


int auth_rq_parse(struct sk_buff *skb,u8* dest)
{
	struct rtllib_authentication *a;

	if (skb->len <  (sizeof(struct rtllib_authentication)-sizeof(struct rtllib_info_element))){
		RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
		return -1;
	}
	a = (struct rtllib_authentication*) skb->data;

	memcpy(dest,a->header.addr2, ETH_ALEN);

	if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
		return  WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;

	return WLAN_STATUS_SUCCESS;
}

static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb, u8 *src)
{
	u8 *tag;
	u8 *skbend;
	u8 *ssid=NULL;
	u8 ssidlen = 0;

	struct rtllib_hdr_3addr   *header =
		(struct rtllib_hdr_3addr   *) skb->data;

	if (skb->len < sizeof (struct rtllib_hdr_3addr  ))
		return -1; /* corrupted */
        if ((memcmp(header->addr3,ieee->current_network.bssid,ETH_ALEN) != 0)&&
                (memcmp(header->addr3,"\xff\xff\xff\xff\xff\xff",ETH_ALEN) != 0)) {
            return -1;
        }

        if (memcmp(header->addr3,ieee->current_network.bssid,ETH_ALEN) == 0) {
        }

        if (memcmp(header->addr3,"\xff\xff\xff\xff\xff\xff",ETH_ALEN) == 0) {
        }
	memcpy(src,header->addr2, ETH_ALEN);

	skbend = (u8*)skb->data + skb->len;

	tag = skb->data + sizeof (struct rtllib_hdr_3addr  );

	while (tag+1 < skbend){
		if (*tag == 0){
			ssid = tag+2;
			ssidlen = *(tag+1);
			break;
		}
		tag++; /* point to the len field */
		tag = tag + *(tag); /* point to the last data byte of the tag */
		tag++; /* point to the next tag */
	}

	if (ssidlen == 0) return 1;

	if (!ssid) return 1; /* ssid not found in tagged param */
	return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));

}

int assoc_rq_parse(struct sk_buff *skb,u8* dest)
{
	struct rtllib_assoc_request_frame *a;

	if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
		sizeof(struct rtllib_info_element))) {

		RTLLIB_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
		return -1;
	}

	a = (struct rtllib_assoc_request_frame*) skb->data;

	memcpy(dest,a->header.addr2,ETH_ALEN);

	return 0;
}

static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb, int *aid)
{
	struct rtllib_assoc_response_frame *response_head;
	u16 status_code;

	if (skb->len <  sizeof(struct rtllib_assoc_response_frame)){
		RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
		return 0xcafe;
	}

	response_head = (struct rtllib_assoc_response_frame*) skb->data;
	*aid = le16_to_cpu(response_head->aid) & 0x3fff;

	status_code = le16_to_cpu(response_head->status);
	if ((status_code==WLAN_STATUS_ASSOC_DENIED_RATES || \
	   status_code==WLAN_STATUS_CAPS_UNSUPPORTED)&&
	   ((ieee->mode == IEEE_G) &&
	    (ieee->current_network.mode == IEEE_N_24G) &&
            (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
                 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
	}else {
		 ieee->AsocRetryCount = 0;
	}

	return le16_to_cpu(response_head->status);
}

void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
{
	u8 dest[ETH_ALEN];
	ieee->softmac_stats.rx_probe_rq++;
	if (probe_rq_parse(ieee, skb, dest) > 0){
		ieee->softmac_stats.tx_probe_rs++;
		rtllib_resp_to_probe(ieee, dest);
	}
}

static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee, struct sk_buff *skb)
{
	u8 dest[ETH_ALEN];
	int status;
	ieee->softmac_stats.rx_auth_rq++;

	if ((status = auth_rq_parse(skb, dest))!= -1){
		rtllib_resp_to_auth(ieee, status, dest);
	}

}

static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee, struct sk_buff *skb)
{

	u8 dest[ETH_ALEN];

	ieee->softmac_stats.rx_ass_rq++;
	if (assoc_rq_parse(skb,dest) != -1){
		rtllib_resp_to_assoc_rq(ieee, dest);
	}

	printk(KERN_INFO"New client associated: "MAC_FMT"\n", MAC_ARG(dest));
}


void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
{

	struct sk_buff *buf = rtllib_null_func(ieee, pwr);

	if (buf)
		softmac_ps_mgmt_xmit(buf, ieee);

}

void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
{

	struct sk_buff *buf = rtllib_pspoll_func(ieee);

	if (buf)
		softmac_ps_mgmt_xmit(buf, ieee);

}

short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u32 *time_h, u32 *time_l)
{
	int timeout = ieee->ps_timeout;
	u8 dtim;
	PRT_POWER_SAVE_CONTROL	pPSC = (PRT_POWER_SAVE_CONTROL)(&(ieee->PowerSaveControl));
	/*if (ieee->ps == RTLLIB_PS_DISABLED ||
		ieee->iw_mode != IW_MODE_INFRA ||
		ieee->state != RTLLIB_LINKED)

		return 0;
	*/

	if (ieee->LPSDelayCnt)
	{
		ieee->LPSDelayCnt --;
		return 0;
	}

	dtim = ieee->current_network.dtim_data;
	if (!(dtim & RTLLIB_DTIM_VALID))
		return 0;
	timeout = ieee->current_network.beacon_interval;
	ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
	/* there's no need to nofity AP that I find you buffered with broadcast packet */
	if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
		return 2;

	if (!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))){
		return 0;
	}
	if (!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))){
		return 0;
	}
	if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
		(ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
		return 0;

	if (time_l){
		if (ieee->bAwakePktSent == true) {
			pPSC->LPSAwakeIntvl = 1;
		} else {
			u8		MaxPeriod = 1;

			if (pPSC->LPSAwakeIntvl == 0)
				pPSC->LPSAwakeIntvl = 1;
			if (pPSC->RegMaxLPSAwakeIntvl == 0)
				MaxPeriod = 1;
			else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
				MaxPeriod = ieee->current_network.dtim_period;
			else
				MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
			pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >= MaxPeriod) ? MaxPeriod : (pPSC->LPSAwakeIntvl + 1);
		}
		{
			u8 LPSAwakeIntvl_tmp = 0;
			u8 period = ieee->current_network.dtim_period;
			u8 count = ieee->current_network.tim.tim_count;
			if (count == 0 ) {
				if (pPSC->LPSAwakeIntvl > period)
					LPSAwakeIntvl_tmp = period + (pPSC->LPSAwakeIntvl - period) -((pPSC->LPSAwakeIntvl-period)%period);
				else
					LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;

			} else {
				if (pPSC->LPSAwakeIntvl > ieee->current_network.tim.tim_count)
					LPSAwakeIntvl_tmp = count + (pPSC->LPSAwakeIntvl - count) -((pPSC->LPSAwakeIntvl-count)%period);
				else
					LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
			}

		*time_l = ieee->current_network.last_dtim_sta_time[0]
			+ MSECS(ieee->current_network.beacon_interval * LPSAwakeIntvl_tmp);
	}
	}

	if (time_h) {
		*time_h = ieee->current_network.last_dtim_sta_time[1];
		if (time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
			*time_h += 1;
	}

	return 1;


}

inline void rtllib_sta_ps(struct rtllib_device *ieee)
{

	u32 th,tl;
	short sleep;

	unsigned long flags,flags2;

	spin_lock_irqsave(&ieee->lock, flags);

	if ((ieee->ps == RTLLIB_PS_DISABLED ||
		ieee->iw_mode != IW_MODE_INFRA ||
		ieee->state != RTLLIB_LINKED)){

		RT_TRACE(COMP_DBG, "=====>%s(): no need to ps,wake up!! ieee->ps is %d,ieee->iw_mode is %d,ieee->state is %d\n",
			__func__,ieee->ps,ieee->iw_mode,ieee->state);
		spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);

		rtllib_sta_wakeup(ieee, 1);

		spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
	}

	sleep = rtllib_sta_ps_sleep(ieee,&th, &tl);
	/* 2 wake, 1 sleep, 0 do nothing */
	if (sleep == 0)
	{
		goto out;
	}
	if (sleep == 1){
		if (ieee->sta_sleep == LPS_IS_SLEEP){
			ieee->enter_sleep_state(ieee->dev,th,tl);
		}

		else if (ieee->sta_sleep == LPS_IS_WAKE){
			spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);

			if (ieee->ps_is_queue_empty(ieee->dev)){
				ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
				ieee->ack_tx_to_ieee = 1;
				rtllib_sta_ps_send_null_frame(ieee,1);
				ieee->ps_th = th;
				ieee->ps_tl = tl;
			}
			spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);

		}

		ieee->bAwakePktSent = false;

	}else if (sleep == 2){
		spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);

		rtllib_sta_wakeup(ieee,1);

		spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
	}

out:
	spin_unlock_irqrestore(&ieee->lock, flags);

}

void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
{
	if (ieee->sta_sleep == LPS_IS_WAKE){
		if (nl){
			if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
			{
				ieee->ack_tx_to_ieee = 1;
				rtllib_sta_ps_send_null_frame(ieee, 0);
			}
			else
			{
				ieee->ack_tx_to_ieee = 1;
				rtllib_sta_ps_send_pspoll_frame(ieee);
			}
		}
		return;

	}

	if (ieee->sta_sleep == LPS_IS_SLEEP)
		ieee->sta_wake_up(ieee->dev);
	if (nl){
		/*
			ieee->ack_tx_to_ieee = 1;
			printk("%s(3): notify AP we are awaked ++++++++++ SendNullFunctionData\n", __func__);
			rtllib_sta_ps_send_null_frame(ieee, 0);
		*/
		if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
		{
			ieee->ack_tx_to_ieee = 1;
			rtllib_sta_ps_send_null_frame(ieee, 0);
		}
		else
		{
			ieee->ack_tx_to_ieee = 1;
			ieee->polling = true;
			rtllib_sta_ps_send_pspoll_frame(ieee);
		}

	} else {
		ieee->sta_sleep = LPS_IS_WAKE;
		ieee->polling = false;
	}
}

void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
{
	unsigned long flags,flags2;

	spin_lock_irqsave(&ieee->lock, flags);

	if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND){
		/* Null frame with PS bit set */
		if (success){
			ieee->sta_sleep = LPS_IS_SLEEP;
			ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
		}
		/* if the card report not success we can't be sure the AP
		 * has not RXed so we can't assume the AP believe us awake
		 */
	} else {/* 21112005 - tx again null without PS bit if lost */

		if ((ieee->sta_sleep == LPS_IS_WAKE) && !success){
			spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
			if (ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING)
			{
				rtllib_sta_ps_send_null_frame(ieee, 0);
			}
			else
			{
				rtllib_sta_ps_send_pspoll_frame(ieee);
			}
			spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
		}
	}
	spin_unlock_irqrestore(&ieee->lock, flags);
}

void rtllib_process_action(struct rtllib_device* ieee, struct sk_buff* skb)
{
	struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
	u8* act = rtllib_get_payload((struct rtllib_hdr *)header);
	u8 category = 0;

	if (act == NULL) {
		RTLLIB_DEBUG(RTLLIB_DL_ERR, "error to get payload of action frame\n");
		return;
	}

	category = *act;
	act ++;
	switch (category) {
		case ACT_CAT_BA:
			switch (*act) {
				case ACT_ADDBAREQ:
					rtllib_rx_ADDBAReq(ieee, skb);
					break;
				case ACT_ADDBARSP:
					rtllib_rx_ADDBARsp(ieee, skb);
					break;
				case ACT_DELBA:
					rtllib_rx_DELBA(ieee, skb);
					break;
			}
			break;
		default:
			break;
	}
	return;
}

inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb, struct rtllib_rx_stats *rx_stats)
{
	u16 errcode;
	int aid;
	u8* ies;
	struct rtllib_assoc_response_frame *assoc_resp;
	struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;

	RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
					WLAN_FC_GET_STYPE(header->frame_ctl));

	if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
		ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
		(ieee->iw_mode == IW_MODE_INFRA))
	{
		if (0 == (errcode=assoc_parse(ieee,skb, &aid))){
			struct rtllib_network *network = kzalloc(sizeof(struct rtllib_network), GFP_ATOMIC);

			if (!network)
				return 1;
			memset(network,0,sizeof(*network));
			ieee->state=RTLLIB_LINKED;
			ieee->assoc_id = aid;
			ieee->softmac_stats.rx_ass_ok++;
			/* station support qos */
			/* Let the register setting defaultly with Legacy station */
			assoc_resp = (struct rtllib_assoc_response_frame*)skb->data;
			if (ieee->current_network.qos_data.supported == 1) {
				if (rtllib_parse_info_param(ieee,assoc_resp->info_element,\
							rx_stats->len - sizeof(*assoc_resp),\
							network,rx_stats)){
					kfree(network);
					return 1;
				}
				else
				{
					memcpy(ieee->pHTInfo->PeerHTCapBuf, network->bssht.bdHTCapBuf, network->bssht.bdHTCapLen);
					memcpy(ieee->pHTInfo->PeerHTInfoBuf, network->bssht.bdHTInfoBuf, network->bssht.bdHTInfoLen);
				}
				if (ieee->handle_assoc_response != NULL)
					ieee->handle_assoc_response(ieee->dev, (struct rtllib_assoc_response_frame*)header, network);
				kfree(network);
			}

			if (ieee->assocresp_ies){
				kfree(ieee->assocresp_ies);
				ieee->assocresp_ies = NULL;
			}
			ies = &(assoc_resp->info_element[0].id);
			ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
			ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len, GFP_ATOMIC);
			if (ieee->assocresp_ies)
				memcpy(ieee->assocresp_ies, ies, ieee->assocresp_ies_len);
			else{
				printk("%s()Warning: can't alloc memory for assocresp_ies\n", __func__);
				ieee->assocresp_ies_len = 0;
			}
			rtllib_associate_complete(ieee);
		} else {
			/* aid could not been allocated */
			ieee->softmac_stats.rx_ass_err++;
			printk(
				"Association response status code 0x%x\n",
				errcode);
			RTLLIB_DEBUG_MGMT(
				"Association response status code 0x%x\n",
				errcode);
			if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT) {
				queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 0);
			} else {
				rtllib_associate_abort(ieee);
			}
		}
	}

	return 0;
}

inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb, struct rtllib_rx_stats *rx_stats)
{
	u16 errcode;
	u8* challenge;
	int chlen=0;
	bool bSupportNmode = true, bHalfSupportNmode = false;

	if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
		if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
		    (ieee->iw_mode == IW_MODE_INFRA)) {
			RTLLIB_DEBUG_MGMT("Received authentication response");

			if (0 == (errcode=auth_parse(skb, &challenge, &chlen))) {
				if (ieee->open_wep || !challenge){
					ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
					ieee->softmac_stats.rx_auth_rs_ok++;
					if (!(ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE))
					{
						if (!ieee->GetNmodeSupportBySecCfg(ieee->dev))
						{
							if (IsHTHalfNmodeAPs(ieee))
							{
								bSupportNmode = true;
								bHalfSupportNmode = true;
							}
							else
							{
								bSupportNmode = false;
								bHalfSupportNmode = false;
							}
						}
					}
					/* Dummy wirless mode setting to avoid encryption issue */
					if (bSupportNmode) {
						ieee->SetWirelessMode(ieee->dev, \
							ieee->current_network.mode);
					}else{
						/*TODO*/
						ieee->SetWirelessMode(ieee->dev, IEEE_G);
					}

					if (ieee->current_network.mode == IEEE_N_24G && bHalfSupportNmode == true)
					{
						printk("===============>entern half N mode\n");
						ieee->bHalfWirelessN24GMode = true;
					}
					else
						ieee->bHalfWirelessN24GMode = false;

					rtllib_associate_step2(ieee);
				}else{
					rtllib_auth_challenge(ieee, challenge, chlen);
				}
			}else{
				ieee->softmac_stats.rx_auth_rs_err++;
				RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",errcode);

				printk("Authentication respose status code 0x%x",errcode);
				rtllib_associate_abort(ieee);
			}

		}else if (ieee->iw_mode == IW_MODE_MASTER){
			rtllib_rx_auth_rq(ieee, skb);
		}
	}

	return 0;
}

inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
{
	struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;

	if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
		return 0;

	/* FIXME for now repeat all the association procedure
	* both for disassociation and deauthentication
	*/
	if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
	    ieee->state == RTLLIB_LINKED &&
	    (ieee->iw_mode == IW_MODE_INFRA)) {
		printk(KERN_INFO "==========>received disassoc/deauth(%x) "
		       "frame, reason code:%x\n",
		       WLAN_FC_GET_STYPE(header->frame_ctl),
		       ((struct rtllib_disassoc*)skb->data)->reason);
		ieee->state = RTLLIB_ASSOCIATING;
		ieee->softmac_stats.reassoc++;
		ieee->is_roaming = true;
		ieee->LinkDetectInfo.bBusyTraffic = false;
		rtllib_disassociate(ieee);
		RemovePeerTS(ieee, header->addr2);
		if (ieee->LedControlHandler != NULL)
		        ieee->LedControlHandler(ieee->dev, LED_CTL_START_TO_LINK);

		if (!(ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_CCMP|SEC_ALG_TKIP)))
		queue_delayed_work_rsl(ieee->wq, &ieee->associate_procedure_wq, 5);
	}

	return 0;
}

inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee, struct sk_buff *skb,
			struct rtllib_rx_stats *rx_stats, u16 type,
			u16 stype)
{
	struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;

	if (!ieee->proto_started)
		return 0;

	switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {

		case RTLLIB_STYPE_ASSOC_RESP:
		case RTLLIB_STYPE_REASSOC_RESP:

			if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
				return 1;

			break;

		case RTLLIB_STYPE_ASSOC_REQ:
		case RTLLIB_STYPE_REASSOC_REQ:

			if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
				ieee->iw_mode == IW_MODE_MASTER)

				rtllib_rx_assoc_rq(ieee, skb);
			break;

		case RTLLIB_STYPE_AUTH:

			rtllib_rx_auth(ieee, skb, rx_stats);

			break;
		case RTLLIB_STYPE_DISASSOC:
		case RTLLIB_STYPE_DEAUTH:

			rtllib_rx_deauth(ieee, skb);

			break;

		case RTLLIB_STYPE_MANAGE_ACT:
			rtllib_process_action(ieee,skb);
			break;
		default:
			return -1;
			break;
	}

	return 0;
}

/* following are for a simplier TX queue management.
 * Instead of using netif_[stop/wake]_queue the driver
 * will uses these two function (plus a reset one), that
 * will internally uses the kernel netif_* and takes
 * care of the ieee802.11 fragmentation.
 * So the driver receives a fragment per time and might
 * call the stop function when it want without take care
 * to have enought room to TX an entire packet.
 * This might be useful if each fragment need it's own
 * descriptor, thus just keep a total free memory > than
 * the max fragmentation treshold is not enought.. If the
 * ieee802.11 stack passed a TXB struct then you needed
 * to keep N free descriptors where
 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
 * In this way you need just one and the 802.11 stack
 * will take care of buffering fragments and pass them to
 * to the driver later, when it wakes the queue.
 */
void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
{

	unsigned int queue_index = txb->queue_index;
	unsigned long flags;
	int  i;
	cb_desc *tcb_desc = NULL;
	unsigned long queue_len = 0;

	spin_lock_irqsave(&ieee->lock,flags);

	/* called with 2nd parm 0, no tx mgmt lock required */
	rtllib_sta_wakeup(ieee,0);

	/* update the tx status */
	tcb_desc = (cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE);
	if (tcb_desc->bMulticast) {
		ieee->stats.multicast++;
	}

	/* if xmit available, just xmit it immediately, else just insert it to the wait queue */
	for (i = 0; i < txb->nr_frags; i++) {
		queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
		if ((queue_len  != 0) ||\
			(!ieee->check_nic_enough_desc(ieee->dev,queue_index))||\
		       (ieee->queue_stop)) {
			/* insert the skb packet to the wait queue */
			/* as for the completion function, it does not need
			 * to check it any more.
			 * */
			if (queue_len < 200)
			{
				skb_queue_tail(&ieee->skb_waitQ[queue_index], txb->fragments[i]);
			}else{
				kfree_skb(txb->fragments[i]);
			}
		}else{
			ieee->softmac_data_hard_start_xmit(
					txb->fragments[i],
					ieee->dev,ieee->rate);
		}
	}

	rtllib_txb_free(txb);

	spin_unlock_irqrestore(&ieee->lock,flags);

}

/* called with ieee->lock acquired */
void rtllib_resume_tx(struct rtllib_device *ieee)
{
	int i;
	for (i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {

		if (ieee->queue_stop){
			ieee->tx_pending.frag = i;
			return;
		}else{

			ieee->softmac_data_hard_start_xmit(
				ieee->tx_pending.txb->fragments[i],
				ieee->dev,ieee->rate);
			ieee->stats.tx_packets++;
		}
	}

	rtllib_txb_free(ieee->tx_pending.txb);
	ieee->tx_pending.txb = NULL;
}


void rtllib_reset_queue(struct rtllib_device *ieee)
{
	unsigned long flags;

	spin_lock_irqsave(&ieee->lock,flags);
	init_mgmt_queue(ieee);
	if (ieee->tx_pending.txb){
		rtllib_txb_free(ieee->tx_pending.txb);
		ieee->tx_pending.txb = NULL;
	}
	ieee->queue_stop = 0;
	spin_unlock_irqrestore(&ieee->lock,flags);

}

void rtllib_wake_queue(struct rtllib_device *ieee)
{

	unsigned long flags;
	struct sk_buff *skb;
	struct rtllib_hdr_3addr  *header;

	spin_lock_irqsave(&ieee->lock,flags);
	if (! ieee->queue_stop) goto exit;

	ieee->queue_stop = 0;

	if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
		while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){

			header = (struct rtllib_hdr_3addr  *) skb->data;

			header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);

			if (ieee->seq_ctrl[0] == 0xFFF)
				ieee->seq_ctrl[0] = 0;
			else
				ieee->seq_ctrl[0]++;

			ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
		}
	}
	if (!ieee->queue_stop && ieee->tx_pending.txb)
		rtllib_resume_tx(ieee);

	if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
		ieee->softmac_stats.swtxawake++;
		netif_wake_queue(ieee->dev);
	}

exit :
	spin_unlock_irqrestore(&ieee->lock,flags);
}


void rtllib_stop_queue(struct rtllib_device *ieee)
{

	if (! netif_queue_stopped(ieee->dev)){
		netif_stop_queue(ieee->dev);
		ieee->softmac_stats.swtxstop++;
	}
	ieee->queue_stop = 1;

}

void rtllib_stop_all_queues(struct rtllib_device *ieee)
{
	unsigned int i;
	for (i=0; i < ieee->dev->num_tx_queues; i++)
                netdev_get_tx_queue(ieee->dev,i)->trans_start = jiffies;

	netif_tx_stop_all_queues(ieee->dev);
}

void rtllib_wake_all_queues(struct rtllib_device *ieee)
{
	netif_tx_wake_all_queues(ieee->dev);
}

inline void rtllib_randomize_cell(struct rtllib_device *ieee)
{

	get_random_bytes(ieee->current_network.bssid, ETH_ALEN);

	/* an IBSS cell address must have the two less significant
	 * bits of the first byte = 2
	 */
	ieee->current_network.bssid[0] &= ~0x01;
	ieee->current_network.bssid[0] |= 0x02;
}

/* called in user context only */
void rtllib_start_master_bss(struct rtllib_device *ieee)
{
	ieee->assoc_id = 1;

	if (ieee->current_network.ssid_len == 0){
		strncpy(ieee->current_network.ssid,
			RTLLIB_DEFAULT_TX_ESSID,
			IW_ESSID_MAX_SIZE);

		ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
		ieee->ssid_set = 1;
	}

	memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);

	ieee->set_chan(ieee->dev, ieee->current_network.channel);
	ieee->state = RTLLIB_LINKED;
	ieee->link_change(ieee->dev);
	notify_wx_assoc_event(ieee);

	if (ieee->data_hard_resume)
		ieee->data_hard_resume(ieee->dev);

	netif_carrier_on(ieee->dev);
}

void rtllib_start_monitor_mode(struct rtllib_device *ieee)
{
	/* reset hardware status */
	if (ieee->raw_tx){
		if (ieee->data_hard_resume)
			ieee->data_hard_resume(ieee->dev);

		netif_carrier_on(ieee->dev);
	}
}

void rtllib_start_ibss_wq(void *data)
{
	struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, start_ibss_wq);
	/* iwconfig mode ad-hoc will schedule this and return
	 * on the other hand this will block further iwconfig SET
	 * operations because of the wx_sem hold.
	 * Anyway some most set operations set a flag to speed-up
	 * (abort) this wq (when syncro scanning) before sleeping
	 * on the semaphore
	 */
	if (!ieee->proto_started){
		printk("==========oh driver down return\n");
		return;
	}
	down(&ieee->wx_sem);

	if (ieee->current_network.ssid_len == 0){
		strcpy(ieee->current_network.ssid,RTLLIB_DEFAULT_TX_ESSID);
		ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
		ieee->ssid_set = 1;
	}

	ieee->state = RTLLIB_NOLINK;
	ieee->mode = IEEE_G;
	/* check if we have this cell in our network list */
	rtllib_softmac_check_all_nets(ieee);


	/* if not then the state is not linked. Maybe the user swithced to
	 * ad-hoc mode just after being in monitor mode, or just after
	 * being very few time in managed mode (so the card have had no
	 * time to scan all the chans..) or we have just run up the iface
	 * after setting ad-hoc mode. So we have to give another try..
	 * Here, in ibss mode, should be safe to do this without extra care
	 * (in bss mode we had to make sure no-one tryed to associate when
	 * we had just checked the ieee->state and we was going to start the
	 * scan) beacause in ibss mode the rtllib_new_net function, when
	 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
	 * so, at worst, we waste a bit of time to initiate an unneeded syncro
	 * scan, that will stop at the first round because it sees the state
	 * associated.
	 */
	if (ieee->state == RTLLIB_NOLINK)
		rtllib_start_scan_syncro(ieee, 0);

	/* the network definitively is not here.. create a new cell */
	if (ieee->state == RTLLIB_NOLINK){
		printk("creating new IBSS cell\n");
		ieee->current_network.channel = ieee->IbssStartChnl;
		if (!ieee->wap_set)
			rtllib_randomize_cell(ieee);

		if (ieee->modulation & RTLLIB_CCK_MODULATION){

			ieee->current_network.rates_len = 4;

			ieee->current_network.rates[0] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
			ieee->current_network.rates[1] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
			ieee->current_network.rates[2] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
			ieee->current_network.rates[3] = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;

		}else
			ieee->current_network.rates_len = 0;

		if (ieee->modulation & RTLLIB_OFDM_MODULATION){
			ieee->current_network.rates_ex_len = 8;

			/*ieee->current_network.rates_ex[0] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
			ieee->current_network.rates_ex[1] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
			ieee->current_network.rates_ex[2] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
			ieee->current_network.rates_ex[3] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
			ieee->current_network.rates_ex[4] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
			ieee->current_network.rates_ex[5] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
			ieee->current_network.rates_ex[6] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
			ieee->current_network.rates_ex[7] = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;*/

			ieee->current_network.rates_ex[0] = RTLLIB_OFDM_RATE_6MB;
			ieee->current_network.rates_ex[1] = RTLLIB_OFDM_RATE_9MB;
			ieee->current_network.rates_ex[2] = RTLLIB_OFDM_RATE_12MB;
			ieee->current_network.rates_ex[3] = RTLLIB_OFDM_RATE_18MB;
			ieee->current_network.rates_ex[4] = RTLLIB_OFDM_RATE_24MB;
			ieee->current_network.rates_ex[5] = RTLLIB_OFDM_RATE_36MB;
			ieee->current_network.rates_ex[6] = RTLLIB_OFDM_RATE_48MB;
			ieee->current_network.rates_ex[7] = RTLLIB_OFDM_RATE_54MB;

			ieee->rate = 108;
		}else{
			ieee->current_network.rates_ex_len = 0;
			ieee->rate = 22;
		}

		ieee->current_network.qos_data.supported = 0;
		ieee->SetWirelessMode(ieee->dev, IEEE_G);
		ieee->current_network.mode = ieee->mode;
		ieee->current_network.atim_window = 0;
		ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
	}

	printk("%s(): ieee->mode = %d\n", __func__, ieee->mode);
	if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
		HTUseDefaultSetting(ieee);
	else
		ieee->pHTInfo->bCurrentHTSupport = false;

	ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS, (u8 *)(&ieee->state));

	ieee->state = RTLLIB_LINKED;
	ieee->link_change(ieee->dev);

	HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
	if (ieee->LedControlHandler != NULL)
	        ieee->LedControlHandler(ieee->dev,LED_CTL_LINK);

	rtllib_start_send_beacons(ieee);

	notify_wx_assoc_event(ieee);

	if (ieee->data_hard_resume)
		ieee->data_hard_resume(ieee->dev);

	netif_carrier_on(ieee->dev);

	up(&ieee->wx_sem);
}

inline void rtllib_start_ibss(struct rtllib_device *ieee)
{
	queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq, MSECS(150));
}

/* this is called only in user context, with wx_sem held */
void rtllib_start_bss(struct rtllib_device *ieee)
{
	unsigned long flags;
	if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
	{
		if (! ieee->bGlobalDomain)
		{
			return;
		}
	}
	/* check if we have already found the net we
	 * are interested in (if any).
	 * if not (we are disassociated and we are not
	 * in associating / authenticating phase) start the background scanning.
	 */
	rtllib_softmac_check_all_nets(ieee);

	/* ensure no-one start an associating process (thus setting
	 * the ieee->state to rtllib_ASSOCIATING) while we
	 * have just cheked it and we are going to enable scan.
	 * The rtllib_new_net function is always called with
	 * lock held (from both rtllib_softmac_check_all_nets and
	 * the rx path), so we cannot be in the middle of such function
	 */
	spin_lock_irqsave(&ieee->lock, flags);

	if (ieee->state == RTLLIB_NOLINK) {
		rtllib_start_scan(ieee);
	}
	spin_unlock_irqrestore(&ieee->lock, flags);
}

void rtllib_link_change_wq(void *data)
{
	struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, link_change_wq);
	ieee->link_change(ieee->dev);
}
/* called only in userspace context */
void rtllib_disassociate(struct rtllib_device *ieee)
{
	netif_carrier_off(ieee->dev);
	if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
			rtllib_reset_queue(ieee);

	if (ieee->data_hard_stop)
			ieee->data_hard_stop(ieee->dev);
	if (IS_DOT11D_ENABLE(ieee))
		Dot11d_Reset(ieee);
	ieee->state = RTLLIB_NOLINK;
	ieee->is_set_key = false;
	ieee->wap_set = 0;

	queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);

	notify_wx_assoc_event(ieee);
}

void rtllib_associate_retry_wq(void *data)
{
	struct rtllib_device *ieee = container_of_dwork_rsl(data, struct rtllib_device, associate_retry_wq);
	unsigned long flags;

	down(&ieee->wx_sem);
	if (!ieee->proto_started)
		goto exit;

	if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
		goto exit;

	/* until we do not set the state to RTLLIB_NOLINK
	* there are no possibility to have someone else trying
	* to start an association procdure (we get here with
	* ieee->state = RTLLIB_ASSOCIATING).
	* When we set the state to RTLLIB_NOLINK it is possible
	* that the RX path run an attempt to associate, but
	* both rtllib_softmac_check_all_nets and the
	* RX path works with ieee->lock held so there are no
	* problems. If we are still disassociated then start a scan.
	* the lock here is necessary to ensure no one try to start
	* an association procedure when we have just checked the
	* state and we are going to start the scan.
	*/
	ieee->beinretry = true;
	ieee->state = RTLLIB_NOLINK;

	rtllib_softmac_check_all_nets(ieee);

	spin_lock_irqsave(&ieee->lock, flags);

	if (ieee->state == RTLLIB_NOLINK)
	{
		rtllib_start_scan(ieee);
	}
	spin_unlock_irqrestore(&ieee->lock, flags);

	ieee->beinretry = false;
exit:
	up(&ieee->wx_sem);
}

struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
{
	u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff};

	struct sk_buff *skb;
	struct rtllib_probe_response *b;
	skb = rtllib_probe_resp(ieee, broadcast_addr);

	if (!skb)
		return NULL;

	b = (struct rtllib_probe_response *) skb->data;
	b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);

	return skb;

}

struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
{
	struct sk_buff *skb;
	struct rtllib_probe_response *b;

	skb = rtllib_get_beacon_(ieee);
	if (!skb)
		return NULL;

	b = (struct rtllib_probe_response *) skb->data;
	b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);

	if (ieee->seq_ctrl[0] == 0xFFF)
		ieee->seq_ctrl[0] = 0;
	else
		ieee->seq_ctrl[0]++;

	return skb;
}

void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag, u8 shutdown)
{
	rtllib_stop_scan_syncro(ieee);
	down(&ieee->wx_sem);
	rtllib_stop_protocol(ieee,shutdown);
	up(&ieee->wx_sem);
}


void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
{
	if (!ieee->proto_started)
		return;

	if (shutdown){
	ieee->proto_started = 0;
		ieee->proto_stoppping = 1;
		if (ieee->rtllib_ips_leave != NULL)
			ieee->rtllib_ips_leave(ieee->dev);
	}

	rtllib_stop_send_beacons(ieee);
	del_timer_sync(&ieee->associate_timer);
	cancel_delayed_work(&ieee->associate_retry_wq);
	cancel_delayed_work(&ieee->start_ibss_wq);
	cancel_delayed_work(&ieee->link_change_wq);
	rtllib_stop_scan(ieee);

	if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
		ieee->state = RTLLIB_NOLINK;

	if (ieee->state == RTLLIB_LINKED){
		if (ieee->iw_mode == IW_MODE_INFRA)
			SendDisassociation(ieee,1,deauth_lv_ss);
		rtllib_disassociate(ieee);
	}

	if (shutdown){
		RemoveAllTS(ieee);
		ieee->proto_stoppping = 0;
	}
	if (ieee->assocreq_ies) {
		kfree(ieee->assocreq_ies);
		ieee->assocreq_ies = NULL;
		ieee->assocreq_ies_len = 0;
	}
	if (ieee->assocresp_ies) {
		kfree(ieee->assocresp_ies);
		ieee->assocresp_ies = NULL;
		ieee->assocresp_ies_len = 0;
	}
}

void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
{
	down(&ieee->wx_sem);
	rtllib_start_protocol(ieee);
	up(&ieee->wx_sem);
}

void rtllib_start_protocol(struct rtllib_device *ieee)
{
	short ch = 0;
	int i = 0;

	rtllib_update_active_chan_map(ieee);

	if (ieee->proto_started)
		return;

	ieee->proto_started = 1;

	if (ieee->current_network.channel == 0) {
		do {
			ch++;
			if (ch > MAX_CHANNEL_NUMBER)
				return; /* no channel found */
		} while(!ieee->active_channel_map[ch]);
		ieee->current_network.channel = ch;
	}

	if (ieee->current_network.beacon_interval == 0)
		ieee->current_network.beacon_interval = 100;

	for (i = 0; i < 17; i++) {
		ieee->last_rxseq_num[i] = -1;
		ieee->last_rxfrag_num[i] = -1;
		ieee->last_packet_time[i] = 0;
	}

	if (ieee->UpdateBeaconInterruptHandler)
		ieee->UpdateBeaconInterruptHandler(ieee->dev, false);

	ieee->wmm_acm = 0;
	/* if the user set the MAC of the ad-hoc cell and then
	 * switch to managed mode, shall we  make sure that association
	 * attempts does not fail just because the user provide the essid
	 * and the nic is still checking for the AP MAC ??
	 */
	if (ieee->iw_mode == IW_MODE_INFRA) {
		rtllib_start_bss(ieee);
	} else if (ieee->iw_mode == IW_MODE_ADHOC) {
		if (ieee->UpdateBeaconInterruptHandler)
			ieee->UpdateBeaconInterruptHandler(ieee->dev, true);

		rtllib_start_ibss(ieee);

	} else if (ieee->iw_mode == IW_MODE_MASTER) {
		rtllib_start_master_bss(ieee);
	} else if (ieee->iw_mode == IW_MODE_MONITOR) {
		rtllib_start_monitor_mode(ieee);
	}
}

void rtllib_softmac_init(struct rtllib_device *ieee)
{
	int i;
	memset(&ieee->current_network, 0, sizeof(struct rtllib_network));

	ieee->state = RTLLIB_NOLINK;
	for (i = 0; i < 5; i++) {
	  ieee->seq_ctrl[i] = 0;
	}
	ieee->pDot11dInfo = kmalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
	if (!ieee->pDot11dInfo)
		RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
	memset(ieee->pDot11dInfo, 0, sizeof(struct rt_dot11d_info));
	ieee->LinkDetectInfo.SlotIndex = 0;
	ieee->LinkDetectInfo.SlotNum = 2;
	ieee->LinkDetectInfo.NumRecvBcnInPeriod=0;
        ieee->LinkDetectInfo.NumRecvDataInPeriod=0;
	ieee->LinkDetectInfo.NumTxOkInPeriod =0;
	ieee->LinkDetectInfo.NumRxOkInPeriod =0;
	ieee->LinkDetectInfo.NumRxUnicastOkInPeriod=0;
	ieee->bIsAggregateFrame = false;
	ieee->assoc_id = 0;
	ieee->queue_stop = 0;
	ieee->scanning_continue = 0;
	ieee->softmac_features = 0;
	ieee->wap_set = 0;
	ieee->ssid_set = 0;
	ieee->proto_started = 0;
	ieee->proto_stoppping = 0;
	ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
	ieee->rate = 22;
	ieee->ps = RTLLIB_PS_DISABLED;
	ieee->sta_sleep = LPS_IS_WAKE;

	ieee->Regdot11HTOperationalRateSet[0]= 0xff;
	ieee->Regdot11HTOperationalRateSet[1]= 0xff;
	ieee->Regdot11HTOperationalRateSet[4]= 0x01;

	ieee->Regdot11TxHTOperationalRateSet[0]= 0xff;
	ieee->Regdot11TxHTOperationalRateSet[1]= 0xff;
	ieee->Regdot11TxHTOperationalRateSet[4]= 0x01;

	ieee->FirstIe_InScan = false;
	ieee->actscanning = false;
	ieee->beinretry = false;
	ieee->is_set_key = false;
	init_mgmt_queue(ieee);

	ieee->sta_edca_param[0] = 0x0000A403;
	ieee->sta_edca_param[1] = 0x0000A427;
	ieee->sta_edca_param[2] = 0x005E4342;
	ieee->sta_edca_param[3] = 0x002F3262;
	ieee->aggregation = true;
	ieee->enable_rx_imm_BA = 1;
	ieee->tx_pending.txb = NULL;

	_setup_timer(&ieee->associate_timer,
		    rtllib_associate_abort_cb,
		    (unsigned long) ieee);

	_setup_timer(&ieee->beacon_timer,
		    rtllib_send_beacon_cb,
		    (unsigned long) ieee);


	ieee->wq = create_workqueue(DRV_NAME);

	INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,(void*)rtllib_link_change_wq,ieee);
	INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,(void*)rtllib_start_ibss_wq,ieee);
	INIT_WORK_RSL(&ieee->associate_complete_wq, (void*)rtllib_associate_complete_wq,ieee);
	INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq, (void*)rtllib_associate_procedure_wq,ieee);
	INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,(void*)rtllib_softmac_scan_wq,ieee);
	INIT_DELAYED_WORK_RSL(&ieee->softmac_hint11d_wq,(void*)rtllib_softmac_hint11d_wq,ieee);
	INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq, (void*)rtllib_associate_retry_wq,ieee);
	INIT_WORK_RSL(&ieee->wx_sync_scan_wq,(void*)rtllib_wx_sync_scan_wq,ieee);

	sema_init(&ieee->wx_sem, 1);
	sema_init(&ieee->scan_sem, 1);
	sema_init(&ieee->ips_sem,1);

	spin_lock_init(&ieee->mgmt_tx_lock);
	spin_lock_init(&ieee->beacon_lock);

	tasklet_init(&ieee->ps_task,
	     (void(*)(unsigned long)) rtllib_sta_ps,
	     (unsigned long)ieee);

}

void rtllib_softmac_free(struct rtllib_device *ieee)
{
	down(&ieee->wx_sem);
	if (NULL != ieee->pDot11dInfo)
	{
		kfree(ieee->pDot11dInfo);
		ieee->pDot11dInfo = NULL;
	}
	del_timer_sync(&ieee->associate_timer);

	cancel_delayed_work(&ieee->associate_retry_wq);
	destroy_workqueue(ieee->wq);
	up(&ieee->wx_sem);
}

/********************************************************
 * Start of WPA code.                                   *
 * this is stolen from the ipw2200 driver               *
 ********************************************************/


static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
{
	/* This is called when wpa_supplicant loads and closes the driver
	 * interface. */
	printk("%s WPA\n",value ? "enabling" : "disabling");
	ieee->wpa_enabled = value;
	memset(ieee->ap_mac_addr, 0, 6);
	return 0;
}


void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie, int wpa_ie_len)
{
	/* make sure WPA is enabled */
	rtllib_wpa_enable(ieee, 1);

	rtllib_disassociate(ieee);
}


static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
{

	int ret = 0;

	switch (command) {
	case IEEE_MLME_STA_DEAUTH:
		break;

	case IEEE_MLME_STA_DISASSOC:
		rtllib_disassociate(ieee);
		break;

	default:
		printk("Unknown MLME request: %d\n", command);
		ret = -EOPNOTSUPP;
	}

	return ret;
}


static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
			      struct ieee_param *param, int plen)
{
	u8 *buf;

	if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
	    (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
		return -EINVAL;

	if (param->u.wpa_ie.len) {
		buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
		if (buf == NULL)
			return -ENOMEM;

		memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
		kfree(ieee->wpa_ie);
		ieee->wpa_ie = buf;
		ieee->wpa_ie_len = param->u.wpa_ie.len;
	} else {
		kfree(ieee->wpa_ie);
		ieee->wpa_ie = NULL;
		ieee->wpa_ie_len = 0;
	}

	rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
	return 0;
}

#define AUTH_ALG_OPEN_SYSTEM			0x1
#define AUTH_ALG_SHARED_KEY			0x2
#define AUTH_ALG_LEAP				0x4
static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
{

	struct rtllib_security sec = {
		.flags = SEC_AUTH_MODE,
	};
	int ret = 0;

	if (value & AUTH_ALG_SHARED_KEY) {
		sec.auth_mode = WLAN_AUTH_SHARED_KEY;
		ieee->open_wep = 0;
		ieee->auth_mode = 1;
	} else if (value & AUTH_ALG_OPEN_SYSTEM){
		sec.auth_mode = WLAN_AUTH_OPEN;
		ieee->open_wep = 1;
		ieee->auth_mode = 0;
	}
	else if (value & AUTH_ALG_LEAP){
		sec.auth_mode = WLAN_AUTH_LEAP  >> 6;
		ieee->open_wep = 1;
		ieee->auth_mode = 2;
	}


	if (ieee->set_security)
		ieee->set_security(ieee->dev, &sec);

	return ret;
}

static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
{
	int ret=0;
	unsigned long flags;

	switch (name) {
	case IEEE_PARAM_WPA_ENABLED:
		ret = rtllib_wpa_enable(ieee, value);
		break;

	case IEEE_PARAM_TKIP_COUNTERMEASURES:
		ieee->tkip_countermeasures=value;
		break;

		case IEEE_PARAM_DROP_UNENCRYPTED:
		{
		/* HACK:
		 *
		 * wpa_supplicant calls set_wpa_enabled when the driver
		 * is loaded and unloaded, regardless of if WPA is being
		 * used.  No other calls are made which can be used to
		 * determine if encryption will be used or not prior to
		 * association being expected.  If encryption is not being
		 * used, drop_unencrypted is set to false, else true -- we
		 * can use this to determine if the CAP_PRIVACY_ON bit should
		 * be set.
		 */
		struct rtllib_security sec = {
			.flags = SEC_ENABLED,
			.enabled = value,
		};
		ieee->drop_unencrypted = value;
		/* We only change SEC_LEVEL for open mode. Others
		 * are set by ipw_wpa_set_encryption.
		 */
		if (!value) {
			sec.flags |= SEC_LEVEL;
			sec.level = SEC_LEVEL_0;
		}
		else {
			sec.flags |= SEC_LEVEL;
			sec.level = SEC_LEVEL_1;
		}
		if (ieee->set_security)
			ieee->set_security(ieee->dev, &sec);
		break;
	}

	case IEEE_PARAM_PRIVACY_INVOKED:
		ieee->privacy_invoked=value;
		break;

	case IEEE_PARAM_AUTH_ALGS:
		ret = rtllib_wpa_set_auth_algs(ieee, value);
		break;

	case IEEE_PARAM_IEEE_802_1X:
		ieee->ieee802_1x=value;
		break;
	case IEEE_PARAM_WPAX_SELECT:
		spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
		spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
		break;

	default:
		printk("Unknown WPA param: %d\n",name);
		ret = -EOPNOTSUPP;
	}

	return ret;
}

/* implementation borrowed from hostap driver */
static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
				  struct ieee_param *param, int param_len, u8 is_mesh)
{
	int ret = 0;
	struct rtllib_crypto_ops *ops;
	struct rtllib_crypt_data **crypt;

	struct rtllib_security sec = {
		.flags = 0,
	};

	param->u.crypt.err = 0;
	param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';

	if (param_len !=
	    (int) ((char *) param->u.crypt.key - (char *) param) +
	    param->u.crypt.key_len) {
		printk("Len mismatch %d, %d\n", param_len,
			       param->u.crypt.key_len);
		return -EINVAL;
	}
	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
		if (param->u.crypt.idx >= WEP_KEYS)
			return -EINVAL;
		crypt = &ieee->crypt[param->u.crypt.idx];
	} else {
		return -EINVAL;
	}

	if (strcmp(param->u.crypt.alg, "none") == 0) {
		if (crypt) {
			sec.enabled = 0;
			sec.level = SEC_LEVEL_0;
			sec.flags |= SEC_ENABLED | SEC_LEVEL;
			rtllib_crypt_delayed_deinit(ieee, crypt);
		}
		goto done;
	}
	sec.enabled = 1;
	sec.flags |= SEC_ENABLED;

	/* IPW HW cannot build TKIP MIC, host decryption still needed. */
	if (!(ieee->host_encrypt || ieee->host_decrypt) &&
	    strcmp(param->u.crypt.alg, "TKIP"))
		goto skip_host_crypt;

	ops = rtllib_get_crypto_ops(param->u.crypt.alg);
	if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
		request_module("rtllib_crypt_wep");
		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
	} else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
		request_module("rtllib_crypt_tkip");
		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
	} else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
		request_module("rtllib_crypt_ccmp");
		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
	}
	if (ops == NULL) {
		printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
		param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
		ret = -EINVAL;
		goto done;
	}
	if (*crypt == NULL || (*crypt)->ops != ops) {
		struct rtllib_crypt_data *new_crypt;

		rtllib_crypt_delayed_deinit(ieee, crypt);

		new_crypt = (struct rtllib_crypt_data *)
			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
		if (new_crypt == NULL) {
			ret = -ENOMEM;
			goto done;
		}
		memset(new_crypt, 0, sizeof(struct rtllib_crypt_data));
		new_crypt->ops = ops;
		if (new_crypt->ops)
			new_crypt->priv =
				new_crypt->ops->init(param->u.crypt.idx);

		if (new_crypt->priv == NULL) {
			kfree(new_crypt);
			param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
			ret = -EINVAL;
			goto done;
		}

		*crypt = new_crypt;
	}

	if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
	    (*crypt)->ops->set_key(param->u.crypt.key,
	    param->u.crypt.key_len, param->u.crypt.seq,
	    (*crypt)->priv) < 0) {
		printk("key setting failed\n");
		param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
		ret = -EINVAL;
		goto done;
	}

 skip_host_crypt:
	if (param->u.crypt.set_tx) {
		ieee->tx_keyidx = param->u.crypt.idx;
		sec.active_key = param->u.crypt.idx;
		sec.flags |= SEC_ACTIVE_KEY;
	} else
		sec.flags &= ~SEC_ACTIVE_KEY;

	if (param->u.crypt.alg != NULL) {
		memcpy(sec.keys[param->u.crypt.idx],
		       param->u.crypt.key,
		       param->u.crypt.key_len);
		sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
		sec.flags |= (1 << param->u.crypt.idx);

		if (strcmp(param->u.crypt.alg, "WEP") == 0) {
			sec.flags |= SEC_LEVEL;
			sec.level = SEC_LEVEL_1;
		} else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
			sec.flags |= SEC_LEVEL;
			sec.level = SEC_LEVEL_2;
		} else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
			sec.flags |= SEC_LEVEL;
			sec.level = SEC_LEVEL_3;
		}
	}
 done:
	if (ieee->set_security)
		ieee->set_security(ieee->dev, &sec);

	/* Do not reset port if card is in Managed mode since resetting will
	 * generate new IEEE 802.11 authentication which may end up in looping
	 * with IEEE 802.1X.  If your hardware requires a reset after WEP
	 * configuration (for example... Prism2), implement the reset_port in
	 * the callbacks structures used to initialize the 802.11 stack. */
	if (ieee->reset_on_keychange &&
	    ieee->iw_mode != IW_MODE_INFRA &&
	    ieee->reset_port &&
	    ieee->reset_port(ieee->dev)) {
		printk("reset_port failed\n");
		param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
		return -EINVAL;
	}

	return ret;
}

inline struct sk_buff *rtllib_disauth_skb( struct rtllib_network *beacon,
		struct rtllib_device *ieee, u16 asRsn)
{
	struct sk_buff *skb;
	struct rtllib_disauth *disauth;
	int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;

	skb = dev_alloc_skb(len);
	if (!skb) {
		return NULL;
	}

	skb_reserve(skb, ieee->tx_headroom);

	disauth = (struct rtllib_disauth *) skb_put(skb,sizeof(struct rtllib_disauth));
	disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
	disauth->header.duration_id = 0;

	memcpy(disauth->header.addr1, beacon->bssid, ETH_ALEN);
	memcpy(disauth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(disauth->header.addr3, beacon->bssid, ETH_ALEN);

	disauth->reason = cpu_to_le16(asRsn);
	return skb;
}

inline struct sk_buff *rtllib_disassociate_skb( struct rtllib_network *beacon,
		struct rtllib_device *ieee, u16 asRsn)
{
	struct sk_buff *skb;
	struct rtllib_disassoc *disass;
	int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
	skb = dev_alloc_skb(len);

	if (!skb) {
		return NULL;
	}

	skb_reserve(skb, ieee->tx_headroom);

	disass = (struct rtllib_disassoc *) skb_put(skb,sizeof(struct rtllib_disassoc));
	disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
	disass->header.duration_id = 0;

	memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
	memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
	memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);

	disass->reason = cpu_to_le16(asRsn);
	return skb;
}

void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
{
	struct rtllib_network *beacon = &ieee->current_network;
	struct sk_buff *skb;

	if (deauth) {
		skb = rtllib_disauth_skb(beacon,ieee,asRsn);
	} else {
		skb = rtllib_disassociate_skb(beacon,ieee,asRsn);
	}

	if (skb){
		softmac_mgmt_xmit(skb, ieee);
	}
}

u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
{
	static u8 ccmp_ie[4] = {0x00,0x50,0xf2,0x04};
	static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
	int wpa_ie_len= ieee->wpa_ie_len;
	struct rtllib_crypt_data* crypt;
	int encrypt;

	crypt = ieee->crypt[ieee->tx_keyidx];
	encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY) ||\
		  (ieee->host_encrypt && crypt && crypt->ops && \
		   (0 == strcmp(crypt->ops->name,"WEP")));

	/* simply judge  */
	if (encrypt && (wpa_ie_len == 0)) {
		return SEC_ALG_WEP;
	} else if ((wpa_ie_len != 0)) {
		if (((ieee->wpa_ie[0] == 0xdd) && (!memcmp(&(ieee->wpa_ie[14]),ccmp_ie,4))) ||
				((ieee->wpa_ie[0] == 0x30) && (!memcmp(&ieee->wpa_ie[10],ccmp_rsn_ie, 4))))
			return SEC_ALG_CCMP;
		else
			return SEC_ALG_TKIP;
	} else {
		return SEC_ALG_NONE;
	}
}

int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p, u8 is_mesh)
{
	struct ieee_param *param;
	int ret=0;

	down(&ieee->wx_sem);

	if (p->length < sizeof(struct ieee_param) || !p->pointer){
		ret = -EINVAL;
		goto out;
	}

	param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
	if (param == NULL){
		ret = -ENOMEM;
		goto out;
	}
	if (copy_from_user(param, p->pointer, p->length)) {
		kfree(param);
		ret = -EFAULT;
		goto out;
	}

	switch (param->cmd) {

	case IEEE_CMD_SET_WPA_PARAM:
		ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
					param->u.wpa_param.value);
		break;

	case IEEE_CMD_SET_WPA_IE:
		ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
		break;

	case IEEE_CMD_SET_ENCRYPTION:
		ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
		break;

	case IEEE_CMD_MLME:
		ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
				   param->u.mlme.reason_code);
		break;

	default:
		printk("Unknown WPA supplicant request: %d\n",param->cmd);
		ret = -EOPNOTSUPP;
		break;
	}

	if (ret == 0 && copy_to_user(p->pointer, param, p->length))
		ret = -EFAULT;

	kfree(param);
out:
	up(&ieee->wx_sem);

	return ret;
}

void
rtllib_MgntDisconnectIBSS(struct rtllib_device* rtllib)
{
	u8	OpMode;
	u8	i;
	bool	bFilterOutNonAssociatedBSSID = false;

	rtllib->state = RTLLIB_NOLINK;

	for (i=0;i<6;i++)  rtllib->current_network.bssid[i]= 0x55;

	rtllib->OpMode = RT_OP_MODE_NO_LINK;
	rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID, rtllib->current_network.bssid);
	OpMode = RT_OP_MODE_NO_LINK;
	rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
	rtllib_stop_send_beacons(rtllib);

	bFilterOutNonAssociatedBSSID = false;
	rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID, (u8*)(&bFilterOutNonAssociatedBSSID));
	notify_wx_assoc_event(rtllib);

}

void
rtllib_MlmeDisassociateRequest(
	struct rtllib_device* rtllib,
	u8*		asSta,
	u8		asRsn
	)
{
	u8 i;
	u8	OpMode;

	RemovePeerTS(rtllib, asSta);


	if (memcpy(rtllib->current_network.bssid,asSta,6) == 0)
	{
		rtllib->state = RTLLIB_NOLINK;

		for (i=0;i<6;i++)  rtllib->current_network.bssid[i] = 0x22;
		OpMode = RT_OP_MODE_NO_LINK;
		rtllib->OpMode = RT_OP_MODE_NO_LINK;
		rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, (u8 *)(&OpMode) );
		rtllib_disassociate(rtllib);

		rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID, rtllib->current_network.bssid);

	}

}

void
rtllib_MgntDisconnectAP(
	struct rtllib_device* rtllib,
	u8 asRsn
)
{
	bool bFilterOutNonAssociatedBSSID = false;

	bFilterOutNonAssociatedBSSID = false;
	rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID, (u8*)(&bFilterOutNonAssociatedBSSID));
	rtllib_MlmeDisassociateRequest( rtllib, rtllib->current_network.bssid, asRsn );

	rtllib->state = RTLLIB_NOLINK;
}

bool
rtllib_MgntDisconnect(
	struct rtllib_device* rtllib,
	u8 asRsn
)
{
	if (rtllib->ps != RTLLIB_PS_DISABLED)
	{
                rtllib->sta_wake_up(rtllib->dev);
	}

	if ( rtllib->state == RTLLIB_LINKED )
	{
		if ( rtllib->iw_mode == IW_MODE_ADHOC )
		{
			rtllib_MgntDisconnectIBSS(rtllib);
		}
		if ( rtllib->iw_mode == IW_MODE_INFRA )
		{
			rtllib_MgntDisconnectAP(rtllib, asRsn);
		}

	}

	return true;
}

void notify_wx_assoc_event(struct rtllib_device *ieee)
{
	union iwreq_data wrqu;

	if (ieee->cannot_notify)
		return;

	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
	if (ieee->state == RTLLIB_LINKED)
		memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
	else{

		printk("%s(): Tell user space disconnected\n",__func__);
		memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
	}
	wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
}