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	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 // SPDX-License-Identifier: GPL-2.0
 /* IEEE 802.11 SoftMAC layer
  * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
  *
  * 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.
  */
 #include "rtllib.h"
 
 #include <linux/random.h>
 #include <linux/delay.h>
 #include <linux/uaccess.h>
 #include <linux/etherdevice.h>
 #include <linux/ieee80211.h>
 #include "dot11d.h"
 
 static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
 
 
 static short rtllib_is_54g(struct rtllib_network *net)
 {
     return (net->rates_ex_len > 0) || (net->rates_len > 4);
 }
 
 /* returns the total length needed for placing 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
  */
 static 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;
 }
 
 /* place the MFIE rate, tag to the memory (double) pointed.
  * Then it updates the pointer so that
  * it points after the new MFIE tag added.
  */
 static 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;
 }
 
 static 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;
 }
 
 static 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;
 }
 
 static 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;
     netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
 }
 
 static 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;
 
 }
 
 static 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;
         netdev_info(ieee->dev, "No BasicRate found!!\n");
     }
     return QueryRate;
 }
 
 static 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;
 }
 
 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;
 
     struct cb_desc *tcb_desc = (struct 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 (le16_to_cpu(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 whether 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]) ||
             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.
              */
             netdev_info(ieee->dev,
                    "%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);
     }
 }
 
 static 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;
     struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
 
     fc = le16_to_cpu(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);
 
     }
 }
 
 static 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 = skb_put(skb, sizeof(struct rtllib_probe_request));
     req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
     req->header.duration_id = 0;
 
     eth_broadcast_addr(req->header.addr1);
     ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
     eth_broadcast_addr(req->header.addr3);
 
     tag = 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;
 }
 
 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
 
 static 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_to_jiffies(ieee->current_network.beacon_interval - 5)));
 }
 
 
 static void rtllib_send_beacon_cb(struct timer_list *t)
 {
     struct rtllib_device *ieee =
         from_timer(ieee, t, beacon_timer);
     unsigned long flags;
 
     spin_lock_irqsave(&ieee->beacon_lock, flags);
     rtllib_send_beacon(ieee);
     spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 }
 
 /* Enables 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);
 
     netdev_info(dev, "========>Enter Monitor Mode\n");
 
     ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
 }
 
 
 /* Disables 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);
 
     netdev_info(dev, "========>Exit Monitor Mode\n");
 
     ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
 }
 
 
 /* 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);
 
     netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
 
     ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
     ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
                  (u8 *)&bFilterOutNonAssociatedBSSID);
 
     ieee->bNetPromiscuousMode = true;
 }
 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
 
 
 /* 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);
 
     netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
 
     ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
     ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
                  (u8 *)&bFilterOutNonAssociatedBSSID);
 
     ieee->bNetPromiscuousMode = false;
 }
 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
 
 static 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++;
     }
 }
 
 
 static 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);
     }
 }
 
 static 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.
  */
 static void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
 {
     union iwreq_data wrqu;
     short ch = 0;
 
     rtllib_update_active_chan_map(ieee);
 
     ieee->be_scan_inprogress = true;
 
     mutex_lock(&ieee->scan_mutex);
 
     while (1) {
         do {
             ch++;
             if (ch > MAX_CHANNEL_NUMBER)
                 goto out; /* scan completed */
         } while (!ieee->active_channel_map[ch]);
 
         /* this function 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 which 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) {
             netdev_info(ieee->dev,
                     "============>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_scan_complete(ieee);
     }
     mutex_unlock(&ieee->scan_mutex);
 
     ieee->be_scan_inprogress = false;
 
     memset(&wrqu, 0, sizeof(wrqu));
     wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
 }
 
 static 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))
         return;
 
     mutex_lock(&ieee->scan_mutex);
 
     if (ieee->eRFPowerState == eRfOff) {
         netdev_info(ieee->dev,
                 "======>%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);
 
     schedule_delayed_work(&ieee->softmac_scan_wq,
                   msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
 
     mutex_unlock(&ieee->scan_mutex);
     return;
 
 out:
     if (IS_DOT11D_ENABLE(ieee))
         dot11d_scan_complete(ieee);
     ieee->current_network.channel = last_channel;
 
 out1:
     ieee->actscanning = false;
     ieee->scan_watch_dog = 0;
     ieee->scanning_continue = 0;
     mutex_unlock(&ieee->scan_mutex);
 }
 
 
 
 static 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);
 }
 
 static void rtllib_beacons_stop(struct rtllib_device *ieee)
 {
     unsigned long flags;
 
     spin_lock_irqsave(&ieee->beacon_lock, flags);
 
     ieee->beacon_txing = 0;
 
     spin_unlock_irqrestore(&ieee->beacon_lock, flags);
     del_timer_sync(&ieee->beacon_timer);
 
 }
 
 
 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);
 }
 EXPORT_SYMBOL(rtllib_stop_send_beacons);
 
 
 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);
 }
 EXPORT_SYMBOL(rtllib_start_send_beacons);
 
 
 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
 {
     mutex_lock(&ieee->scan_mutex);
     ieee->scan_watch_dog = 0;
     if (ieee->scanning_continue == 1) {
         ieee->scanning_continue = 0;
         ieee->actscanning = false;
 
         cancel_delayed_work_sync(&ieee->softmac_scan_wq);
     }
 
     mutex_unlock(&ieee->scan_mutex);
 }
 
 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);
     }
 }
 EXPORT_SYMBOL(rtllib_stop_scan);
 
 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);
     }
 }
 EXPORT_SYMBOL(rtllib_stop_scan_syncro);
 
 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);
     }
 }
 EXPORT_SYMBOL(rtllib_act_scanning);
 
 /* called with ieee->lock held */
 static void rtllib_start_scan(struct rtllib_device *ieee)
 {
     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;
             schedule_delayed_work(&ieee->softmac_scan_wq, 0);
         }
     } else {
         if (ieee->rtllib_start_hw_scan)
             ieee->rtllib_start_hw_scan(ieee->dev);
     }
 }
 
 /* called with wx_mutex 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);
     }
 }
 EXPORT_SYMBOL(rtllib_start_scan_syncro);
 
 static 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;
 
     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 = skb_put(skb, sizeof(struct rtllib_authentication));
 
     auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
     if (challengelen)
         auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
 
     auth->header.duration_id = cpu_to_le16(0x013a);
     ether_addr_copy(auth->header.addr1, beacon->bssid);
     ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(auth->header.addr3, beacon->bssid);
     if (ieee->auth_mode == 0)
         auth->algorithm = WLAN_AUTH_OPEN;
     else if (ieee->auth_mode == 1)
         auth->algorithm = cpu_to_le16(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;
 }
 
 static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
                      const 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 lib80211_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_info.crypt[ieee->crypt_info.tx_keyidx];
     encrypt = ieee->host_encrypt && crypt && crypt->ops &&
         ((strcmp(crypt->ops->name, "R-WEP") == 0 || 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 = skb_put(skb, (beacon_size - ieee->tx_headroom));
     ether_addr_copy(beacon_buf->header.addr1, dest);
     ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
 
     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))
         beacon_buf->capability |=
             cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
 
     crypt = ieee->crypt_info.crypt[ieee->crypt_info.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 = 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;
 }
 
 static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
 {
     struct sk_buff *skb;
     u8 *tag;
 
     struct lib80211_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 = skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
 
     assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
     ether_addr_copy(assoc->header.addr1, dest);
     ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
     ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
     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_info.crypt[ieee->crypt_info.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 = skb_put(skb, rate_len);
     rtllib_MFIE_Brate(ieee, &tag);
     rtllib_MFIE_Grate(ieee, &tag);
 
     return skb;
 }
 
 static 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 = 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);
 
     ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
     ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(auth->header.addr1, dest);
     auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
     return skb;
 
 
 }
 
 static 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 = skb_put(skb, sizeof(struct rtllib_hdr_3addr));
 
     ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
     ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
     ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
 
     hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
         RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
         (pwr ? RTLLIB_FCTL_PM : 0));
 
     return skb;
 
 
 }
 
 static 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 = skb_put(skb, sizeof(struct rtllib_pspoll_hdr));
 
     ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
     ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
 
     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;
 
 }
 
 static 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);
 }
 
 
 static 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);
 }
 
 
 static 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);
 }
 
 
 static 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;
         i++;
     } while (i < NUM_PMKID_CACHE);
 
     if (i == NUM_PMKID_CACHE)
         i = -1;
     return i;
 }
 
 static 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 lib80211_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_info.crypt[ieee->crypt_info.tx_keyidx];
     if (crypt != NULL)
         encrypt = ieee->host_encrypt && crypt && crypt->ops &&
               ((strcmp(crypt->ops->name, "R-WEP") == 0 ||
               wpa_ie_len));
     else
         encrypt = 0;
 
     if ((ieee->rtllib_ap_sec_type &&
         (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
         ieee->bForcedBgMode) {
         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;
         netdev_info(ieee->dev, "[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 = skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
 
 
     hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
     hdr->header.duration_id = cpu_to_le16(37);
     ether_addr_copy(hdr->header.addr1, beacon->bssid);
     ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(hdr->header.addr3, beacon->bssid);
 
     ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
 
     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 = cpu_to_le16(beacon->listen_interval);
 
     hdr->info_element[0].id = MFIE_TYPE_SSID;
 
     hdr->info_element[0].len = beacon->ssid_len;
     skb_put_data(skb, 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 const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
         u8  CcxAironetBuf[30];
         struct 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 const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
             0x00};
         struct octet_string osCcxRmCap;
 
         osCcxRmCap.Octet = (u8 *)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};
         struct 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) {
         skb_put_data(skb, 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)
         skb_put_data(skb, ieee->wps_ie, wps_ie_len);
 
     if (turbo_info_len) {
         tag = skb_put(skb, 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);
         }
     }
 
     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 = kmemdup(ies, ieee->assocreq_ies_len, GFP_ATOMIC);
     if (!ieee->assocreq_ies)
         ieee->assocreq_ies_len = 0;
 
     return skb;
 }
 
 static 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) {
         netdev_dbg(ieee->dev, "Authentication failed\n");
         ieee->softmac_stats.no_auth_rs++;
     } else {
         netdev_dbg(ieee->dev, "Association failed\n");
         ieee->softmac_stats.no_ass_rs++;
     }
 
     ieee->state = RTLLIB_ASSOCIATING_RETRY;
 
     schedule_delayed_work(&ieee->associate_retry_wq,
                   RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
 
     spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
 static void rtllib_associate_abort_cb(struct timer_list *t)
 {
     struct rtllib_device *dev = from_timer(dev, t, associate_timer);
 
     rtllib_associate_abort(dev);
 }
 
 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
 {
     struct rtllib_network *beacon = &ieee->current_network;
     struct sk_buff *skb;
 
     netdev_dbg(ieee->dev, "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;
         netdev_dbg(ieee->dev, "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);
         }
     }
 }
 
 static 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);
 
         netdev_dbg(ieee->dev,
                "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);
 }
 
 static 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);
 
     netdev_dbg(ieee->dev, "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));
     }
 }
 
 static 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);
     struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
 
     netdev_info(ieee->dev, "Associated successfully with %pM\n",
             ieee->current_network.bssid);
     if (!ieee->is_silent_reset) {
         netdev_info(ieee->dev, "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;
         netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
     } else {
         ieee->rate = 22;
         ieee->SetWirelessMode(ieee->dev, IEEE_B);
         netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
     }
     if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
         netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
         HTOnAssocRsp(ieee);
     } else {
         netdev_info(ieee->dev,
                 "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) {
         netdev_info(ieee->dev, "silent reset associate\n");
         ieee->is_silent_reset = false;
     }
 
     if (ieee->data_hard_resume)
         ieee->data_hard_resume(ieee->dev);
 
 }
 
 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
 {
 }
 
 static void rtllib_associate_complete(struct rtllib_device *ieee)
 {
     del_timer_sync(&ieee->associate_timer);
 
     ieee->state = RTLLIB_LINKED;
     rtllib_sta_send_associnfo(ieee);
 
     schedule_work(&ieee->associate_complete_wq);
 }
 
 static 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);
     mutex_lock(&ieee->wx_mutex);
 
     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);
         mutex_unlock(&ieee->wx_mutex);
         return;
     }
     ieee->associate_seq = 1;
 
     rtllib_associate_step1(ieee, ieee->current_network.bssid);
 
     mutex_unlock(&ieee->wx_mutex);
 }
 
 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 the user set the AP check if match.
          * if the network does not broadcast essid we check the
          *   user supplied 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
          * check if essid match
          * if the ap is not set, check that the user set the bssid
          * and the network does broadcast and that those two bssid match
          */
         if ((apset && apmatch &&
            ((ssidset && ssidbroad && ssidmatch) ||
            (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
            (!apset && ssidset && ssidbroad && ssidmatch) ||
            (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
             /* Save the essid so that if it is hidden, it is
              * replaced with the essid provided by the user.
              */
             if (!ssidbroad) {
                 memcpy(tmp_ssid, ieee->current_network.ssid,
                        ieee->current_network.ssid_len);
                 tmp_ssid_len = ieee->current_network.ssid_len;
             }
             memcpy(&ieee->current_network, net,
                 sizeof(ieee->current_network));
             if (!ssidbroad) {
                 memcpy(ieee->current_network.ssid, tmp_ssid,
                        tmp_ssid_len);
                 ieee->current_network.ssid_len = tmp_ssid_len;
             }
             netdev_info(ieee->dev,
                     "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.bd_support_ht,
                     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);
 
             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.bd_support_ht)
                     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);
                 schedule_delayed_work(
                        &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);
                     netdev_info(ieee->dev,
                             "Using G rates\n");
                 } else {
                     ieee->rate = 22;
                     ieee->SetWirelessMode(ieee->dev,
                                   IEEE_B);
                     netdev_info(ieee->dev,
                             "Using B rates\n");
                 }
                 memset(ieee->dot11HTOperationalRateSet, 0, 16);
                 ieee->state = RTLLIB_LINKED;
             }
         }
     }
 }
 
 static 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 int auth_parse(struct net_device *dev, 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))) {
         netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
         return -EINVAL;
     }
     *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 = kmemdup(t, *chlen, GFP_ATOMIC);
             if (!*challenge)
                 return -ENOMEM;
         }
     }
 
     if (a->status) {
         netdev_dbg(dev, "auth_parse() failed\n");
         return -EINVAL;
     }
 
     return 0;
 }
 
 static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
 {
     struct rtllib_authentication *a;
 
     if (skb->len <  (sizeof(struct rtllib_authentication) -
         sizeof(struct rtllib_info_element))) {
         netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
         return -1;
     }
     a = (struct rtllib_authentication *)skb->data;
 
     ether_addr_copy(dest, a->header.addr2);
 
     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;
     bool bssid_match;
 
     if (skb->len < sizeof(struct rtllib_hdr_3addr))
         return -1; /* corrupted */
 
     bssid_match =
       (!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
       (!is_broadcast_ether_addr(header->addr3));
     if (bssid_match)
         return -1;
 
     ether_addr_copy(src, header->addr2);
 
     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);
 }
 
 static int assoc_rq_parse(struct net_device *dev, 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))) {
         netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
         return -1;
     }
 
     a = (struct rtllib_assoc_request_frame *)skb->data;
 
     ether_addr_copy(dest, a->header.addr2);
 
     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)) {
         netdev_dbg(ieee->dev, "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++;
 
     status = auth_rq_parse(ieee->dev, skb, dest);
     if (status != -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(ieee->dev, skb, dest) != -1)
         rtllib_resp_to_assoc_rq(ieee, dest);
 
     netdev_info(ieee->dev, "New client associated: %pM\n", 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);
 }
 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
 
 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);
 }
 
 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
 {
     int timeout;
     u8 dtim;
     struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
 
     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,
             dev_trans_start(ieee->dev) + msecs_to_jiffies(timeout)))
         return 0;
     if (!time_after(jiffies,
             ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
         return 0;
     if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
         (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
         return 0;
 
     if (time) {
         if (ieee->bAwakePktSent) {
             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 = ieee->current_network.last_dtim_sta_time
             + msecs_to_jiffies(ieee->current_network.beacon_interval *
             LPSAwakeIntvl_tmp);
     }
     }
 
     return 1;
 
 
 }
 
 static inline void rtllib_sta_ps(struct work_struct *work)
 {
     struct rtllib_device *ieee;
     u64 time;
     short sleep;
     unsigned long flags, flags2;
 
     ieee = container_of(work, struct rtllib_device, ps_task);
 
     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, &time);
     /* 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, time);
         } 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_time = time;
             }
             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);
 
 }
 
 static 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) {
         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_time);
         }
         /* 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);
 }
 EXPORT_SYMBOL(rtllib_ps_tx_ack);
 
 static 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) {
         netdev_warn(ieee->dev,
                 "Error getting 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;
     }
 }
 
 static 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;
     u16 frame_ctl = le16_to_cpu(header->frame_ctl);
 
     netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
            WLAN_FC_GET_STYPE(frame_ctl));
 
     if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
          ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
          (ieee->iw_mode == IW_MODE_INFRA)) {
         errcode = assoc_parse(ieee, skb, &aid);
         if (!errcode) {
             struct rtllib_network *network =
                  kzalloc(sizeof(struct rtllib_network),
                  GFP_ATOMIC);
 
             if (!network)
                 return 1;
             ieee->state = RTLLIB_LINKED;
             ieee->assoc_id = aid;
             ieee->softmac_stats.rx_ass_ok++;
             /* station support qos */
             /* Let the register setting default 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;
                 }
                 memcpy(ieee->pHTInfo->PeerHTCapBuf,
                        network->bssht.bd_ht_cap_buf,
                        network->bssht.bd_ht_cap_len);
                 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
                        network->bssht.bd_ht_info_buf,
                        network->bssht.bd_ht_info_len);
                 if (ieee->handle_assoc_response != NULL)
                     ieee->handle_assoc_response(ieee->dev,
                          (struct rtllib_assoc_response_frame *)header,
                          network);
             }
             kfree(network);
 
             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 = kmemdup(ies,
                               ieee->assocresp_ies_len,
                               GFP_ATOMIC);
             if (!ieee->assocresp_ies)
                 ieee->assocresp_ies_len = 0;
 
             rtllib_associate_complete(ieee);
         } else {
             /* aid could not been allocated */
             ieee->softmac_stats.rx_ass_err++;
             netdev_info(ieee->dev,
                     "Association response status code 0x%x\n",
                     errcode);
             if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
                 schedule_delayed_work(
                      &ieee->associate_procedure_wq, 0);
             else
                 rtllib_associate_abort(ieee);
         }
     }
     return 0;
 }
 
 static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
 {
     int errcode;
     u8 *challenge;
     int chlen = 0;
     bool bSupportNmode = true, bHalfSupportNmode = false;
 
     errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
 
     if (errcode) {
         ieee->softmac_stats.rx_auth_rs_err++;
         netdev_info(ieee->dev,
                 "Authentication response status code %d", errcode);
         rtllib_associate_abort(ieee);
         return;
     }
 
     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) {
             netdev_info(ieee->dev, "======>enter half N mode\n");
             ieee->bHalfWirelessN24GMode = true;
         } else {
             ieee->bHalfWirelessN24GMode = false;
         }
         rtllib_associate_step2(ieee);
     } else {
         rtllib_auth_challenge(ieee, challenge,  chlen);
     }
 }
 
 static inline int
 rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
            struct rtllib_rx_stats *rx_stats)
 {
 
     if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
         if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
             (ieee->iw_mode == IW_MODE_INFRA)) {
             netdev_dbg(ieee->dev,
                    "Received authentication response");
             rtllib_rx_auth_resp(ieee, skb);
         } else if (ieee->iw_mode == IW_MODE_MASTER) {
             rtllib_rx_auth_rq(ieee, skb);
         }
     }
     return 0;
 }
 
 static inline int
 rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
 {
     struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *)skb->data;
     u16 frame_ctl;
 
     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)) {
         frame_ctl = le16_to_cpu(header->frame_ctl);
         netdev_info(ieee->dev,
                 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
                 WLAN_FC_GET_STYPE(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)))
             schedule_delayed_work(
                        &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;
     u16 frame_ctl;
 
     if (!ieee->proto_started)
         return 0;
 
     frame_ctl = le16_to_cpu(header->frame_ctl);
     switch (WLAN_FC_GET_STYPE(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;
     }
     return 0;
 }
 
 /* following are for a simpler TX queue management.
  * Instead of using netif_[stop/wake]_queue the driver
  * will use these two functions (plus a reset one), that
  * will internally use 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 wants to not
  * have enough room to TX an entire packet.
  * This might be useful if each fragment needs it's own
  * descriptor, thus just keep a total free memory > than
  * the max fragmentation threshold is not enough.. If the
  * ieee802.11 stack passed a TXB struct then you need
  * 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
  * 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;
     struct 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 = (struct 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);
 
 }
 
 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);
 
 }
 EXPORT_SYMBOL(rtllib_reset_queue);
 
 void rtllib_stop_all_queues(struct rtllib_device *ieee)
 {
     unsigned int i;
 
     for (i = 0; i < ieee->dev->num_tx_queues; i++)
         txq_trans_cond_update(netdev_get_tx_queue(ieee->dev, i));
 
     netif_tx_stop_all_queues(ieee->dev);
 }
 
 void rtllib_wake_all_queues(struct rtllib_device *ieee)
 {
     netif_tx_wake_all_queues(ieee->dev);
 }
 
 /* called in user context only */
 static 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;
     }
 
     ether_addr_copy(ieee->current_network.bssid, ieee->dev->dev_addr);
 
     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);
 }
 
 static 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);
     }
 }
 
 static 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_mutex hold.
      * Anyway some most set operations set a flag to speed-up
      * (abort) this wq (when syncro scanning) before sleeping
      * on the mutex
      */
     if (!ieee->proto_started) {
         netdev_info(ieee->dev, "==========oh driver down return\n");
         return;
     }
     mutex_lock(&ieee->wx_mutex);
 
     if (ieee->current_network.ssid_len == 0) {
         strscpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID,
             sizeof(ieee->current_network.ssid));
         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 switched 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 tried to associate when
      * we had just checked the ieee->state and we was going to start the
      * scan) because 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) {
         netdev_info(ieee->dev, "creating new IBSS cell\n");
         ieee->current_network.channel = ieee->bss_start_channel;
         if (!ieee->wap_set)
             eth_random_addr(ieee->current_network.bssid);
 
         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_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;
     }
 
     netdev_info(ieee->dev, "%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);
 
     mutex_unlock(&ieee->wx_mutex);
 }
 
 inline void rtllib_start_ibss(struct rtllib_device *ieee)
 {
     schedule_delayed_work(&ieee->start_ibss_wq, msecs_to_jiffies(150));
 }
 
 /* this is called only in user context, with wx_mutex held */
 static void rtllib_start_bss(struct rtllib_device *ieee)
 {
     unsigned long flags;
 
     if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
         if (!ieee->global_domain)
             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 checked 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);
 }
 
 static 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;
 
     schedule_delayed_work(&ieee->link_change_wq, 0);
 
     notify_wx_assoc_event(ieee);
 }
 
 static 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;
 
     mutex_lock(&ieee->wx_mutex);
     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 procedure (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:
     mutex_unlock(&ieee->wx_mutex);
 }
 
 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
 {
     static const 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;
 }
 EXPORT_SYMBOL(rtllib_get_beacon);
 
 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
                   u8 shutdown)
 {
     rtllib_stop_scan_syncro(ieee);
     mutex_lock(&ieee->wx_mutex);
     rtllib_stop_protocol(ieee, shutdown);
     mutex_unlock(&ieee->wx_mutex);
 }
 EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
 
 
 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_sync(&ieee->associate_retry_wq);
     cancel_delayed_work_sync(&ieee->start_ibss_wq);
     cancel_delayed_work_sync(&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, WLAN_REASON_DEAUTH_LEAVING);
         rtllib_disassociate(ieee);
     }
 
     if (shutdown) {
         RemoveAllTS(ieee);
         ieee->proto_stoppping = 0;
     }
     kfree(ieee->assocreq_ies);
     ieee->assocreq_ies = NULL;
     ieee->assocreq_ies_len = 0;
     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)
 {
     mutex_lock(&ieee->wx_mutex);
     rtllib_start_protocol(ieee);
     mutex_unlock(&ieee->wx_mutex);
 }
 EXPORT_SYMBOL(rtllib_softmac_start_protocol);
 
 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);
     }
 }
 
 int 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->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
     if (!ieee->dot11d_info)
         return -ENOMEM;
 
     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->tx_pending.txb = NULL;
 
     timer_setup(&ieee->associate_timer, rtllib_associate_abort_cb, 0);
 
     timer_setup(&ieee->beacon_timer, rtllib_send_beacon_cb, 0);
 
     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->associate_retry_wq,
                   (void *)rtllib_associate_retry_wq, ieee);
     INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
               ieee);
 
     mutex_init(&ieee->wx_mutex);
     mutex_init(&ieee->scan_mutex);
     mutex_init(&ieee->ips_mutex);
 
     spin_lock_init(&ieee->mgmt_tx_lock);
     spin_lock_init(&ieee->beacon_lock);
 
     INIT_WORK(&ieee->ps_task, rtllib_sta_ps);
 
     return 0;
 }
 
 void rtllib_softmac_free(struct rtllib_device *ieee)
 {
     mutex_lock(&ieee->wx_mutex);
     kfree(ieee->dot11d_info);
     ieee->dot11d_info = NULL;
     del_timer_sync(&ieee->associate_timer);
 
     cancel_delayed_work_sync(&ieee->associate_retry_wq);
     cancel_delayed_work_sync(&ieee->associate_procedure_wq);
     cancel_delayed_work_sync(&ieee->softmac_scan_wq);
     cancel_delayed_work_sync(&ieee->start_ibss_wq);
     cancel_delayed_work_sync(&ieee->hw_wakeup_wq);
     cancel_delayed_work_sync(&ieee->hw_sleep_wq);
     cancel_delayed_work_sync(&ieee->link_change_wq);
     cancel_work_sync(&ieee->associate_complete_wq);
     cancel_work_sync(&ieee->ips_leave_wq);
     cancel_work_sync(&ieee->wx_sync_scan_wq);
     cancel_work_sync(&ieee->ps_task);
     mutex_unlock(&ieee->wx_mutex);
 }
 
 static 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 = skb_put(skb, sizeof(struct rtllib_disauth));
     disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
     disauth->header.duration_id = 0;
 
     ether_addr_copy(disauth->header.addr1, beacon->bssid);
     ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(disauth->header.addr3, beacon->bssid);
 
     disauth->reason = cpu_to_le16(asRsn);
     return skb;
 }
 
 static 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 = skb_put(skb, sizeof(struct rtllib_disassoc));
     disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
     disass->header.duration_id = 0;
 
     ether_addr_copy(disass->header.addr1, beacon->bssid);
     ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
     ether_addr_copy(disass->header.addr3, beacon->bssid);
 
     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 lib80211_crypt_data *crypt;
     int encrypt;
 
     crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
     encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
           || (ieee->host_encrypt && crypt && crypt->ops &&
           (strcmp(crypt->ops->name, "R-WEP") == 0));
 
     /* 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;
     }
 }
 
 static 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);
 
 }
 
 static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
                        u8 *asSta, u8 asRsn)
 {
     u8 i;
     u8  OpMode;
 
     RemovePeerTS(rtllib, asSta);
 
     if (memcmp(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);
 
     }
 
 }
 
 static 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;
 }
 EXPORT_SYMBOL(rtllib_MgntDisconnect);
 
 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 {
 
         netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
                 __func__);
         eth_zero_addr(wrqu.ap_addr.sa_data);
     }
     wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
 }
 EXPORT_SYMBOL(notify_wx_assoc_event);