text: /******************************************************************************
  
    Copyright(c) 2004 Intel Corporation. All rights reserved.
  
    Portions of this file are based on the WEP enablement code provided by the
    Host AP project hostap-drivers v0.1.3
    Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
    <jkmaline@cc.hut.fi>
    Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
  
    This program is free software; you can redistribute it and/or modify it
    under the terms of version 2 of the GNU General Public License as
    published by the Free Software Foundation.
  
    This program is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
    more details.
  
    You should have received a copy of the GNU General Public License along with
    this program; if not, write to the Free Software Foundation, Inc., 59
    Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  
    The full GNU General Public License is included in this distribution in the
    file called LICENSE.
  
    Contact Information:
    James P. Ketrenos <ipw2100-admin@linux.intel.com>
    Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  
  ******************************************************************************/
  #include <linux/wireless.h>
  #include <linux/version.h>
  #include <linux/kmod.h>
  #include <linux/slab.h>
  #include <linux/module.h>
  
  #include "ieee80211.h"
  #if 0
  static const char *ieee80211_modes[] = {
  	"?", "a", "b", "ab", "g", "ag", "bg", "abg"
  };
  #endif
  struct modes_unit {
  	char *mode_string;
  	int mode_size;
  };
  struct modes_unit ieee80211_modes[] = {
  	{"a",1},
  	{"b",1},
  	{"g",1},
  	{"?",1},
  	{"N-24G",5},
  	{"N-5G",4},
  };
  
  #define iwe_stream_add_event_rsl iwe_stream_add_event
  
  #define MAX_CUSTOM_LEN 64
  static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
   					   char *start, char *stop,
  					   struct ieee80211_network *network,
                                             struct iw_request_info *info)
  {
  	char custom[MAX_CUSTOM_LEN];
  	char proto_name[IFNAMSIZ];
  	char *pname = proto_name;
  	char *p;
  	struct iw_event iwe;
  	int i, j;
  	u16 max_rate, rate;
  	static u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
  
  	/* First entry *MUST* be the AP MAC address */
  	iwe.cmd = SIOCGIWAP;
  	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
  	memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
  	start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_ADDR_LEN);
  	/* Remaining entries will be displayed in the order we provide them */
  
  	/* Add the ESSID */
  	iwe.cmd = SIOCGIWESSID;
  	iwe.u.data.flags = 1;
  //	if (network->flags & NETWORK_EMPTY_ESSID) {
  	if (network->ssid_len == 0) {
  		iwe.u.data.length = sizeof("<hidden>");
                  start = iwe_stream_add_point(info, start, stop, &iwe, "<hidden>");
          } else {
  		iwe.u.data.length = min(network->ssid_len, (u8)32);
                  start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
          }
  	/* Add the protocol name */
  	iwe.cmd = SIOCGIWNAME;
  	for(i=0; i<ARRAY_SIZE(ieee80211_modes); i++) {
  		if(network->mode&(1<<i)) {
  			sprintf(pname,ieee80211_modes[i].mode_string,ieee80211_modes[i].mode_size);
  			pname +=ieee80211_modes[i].mode_size;
  		}
  	}
  	*pname = '\0';
  	snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
          start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_CHAR_LEN);
          /* Add mode */
          iwe.cmd = SIOCGIWMODE;
          if (network->capability &
  	    (WLAN_CAPABILITY_BSS | WLAN_CAPABILITY_IBSS)) {
  		if (network->capability & WLAN_CAPABILITY_BSS)
  			iwe.u.mode = IW_MODE_MASTER;
  		else
  			iwe.u.mode = IW_MODE_ADHOC;
                  start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_UINT_LEN);
          }
  
          /* Add frequency/channel */
  	iwe.cmd = SIOCGIWFREQ;
  /*	iwe.u.freq.m = ieee80211_frequency(network->channel, network->mode);
  	iwe.u.freq.e = 3; */
  	iwe.u.freq.m = network->channel;
  	iwe.u.freq.e = 0;
  	iwe.u.freq.i = 0;
          start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_FREQ_LEN);
  	/* Add encryption capability */
  	iwe.cmd = SIOCGIWENCODE;
  	if (network->capability & WLAN_CAPABILITY_PRIVACY)
  		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
  	else
  		iwe.u.data.flags = IW_ENCODE_DISABLED;
  	iwe.u.data.length = 0;
          start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
  	/* Add basic and extended rates */
  	max_rate = 0;
  	p = custom;
  	p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
  	for (i = 0, j = 0; i < network->rates_len; ) {
  		if (j < network->rates_ex_len &&
  		    ((network->rates_ex[j] & 0x7F) <
  		     (network->rates[i] & 0x7F)))
  			rate = network->rates_ex[j++] & 0x7F;
  		else
  			rate = network->rates[i++] & 0x7F;
  		if (rate > max_rate)
  			max_rate = rate;
  		p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
  			      "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
  	}
  	for (; j < network->rates_ex_len; j++) {
  		rate = network->rates_ex[j] & 0x7F;
  		p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
  			      "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
  		if (rate > max_rate)
  			max_rate = rate;
  	}
  
  	if (network->mode >= IEEE_N_24G)//add N rate here;
  	{
  		PHT_CAPABILITY_ELE ht_cap = NULL;
  		bool is40M = false, isShortGI = false;
  		u8 max_mcs = 0;
  		if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4))
  			ht_cap = (PHT_CAPABILITY_ELE)&network->bssht.bdHTCapBuf[4];
  		else
  			ht_cap = (PHT_CAPABILITY_ELE)&network->bssht.bdHTCapBuf[0];
  		is40M = (ht_cap->ChlWidth)?1:0;
  		isShortGI = (ht_cap->ChlWidth)?
  						((ht_cap->ShortGI40Mhz)?1:0):
  						((ht_cap->ShortGI20Mhz)?1:0);
  
  		max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, MCS_FILTER_ALL);
  		rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs&0x7f];
  		if (rate > max_rate)
  			max_rate = rate;
  	}
  	iwe.cmd = SIOCGIWRATE;
  	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
  	iwe.u.bitrate.value = max_rate * 500000;
          start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
  				     IW_EV_PARAM_LEN);
  	iwe.cmd = IWEVCUSTOM;
  	iwe.u.data.length = p - custom;
  	if (iwe.u.data.length)
          start = iwe_stream_add_point(info, start, stop, &iwe, custom);
  	/* Add quality statistics */
  	/* TODO: Fix these values... */
  	iwe.cmd = IWEVQUAL;
  	iwe.u.qual.qual = network->stats.signal;
  	iwe.u.qual.level = network->stats.rssi;
  	iwe.u.qual.noise = network->stats.noise;
  	iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK;
  	if (!(network->stats.mask & IEEE80211_STATMASK_RSSI))
  		iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
  	if (!(network->stats.mask & IEEE80211_STATMASK_NOISE))
  		iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
  	if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
  		iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
  	iwe.u.qual.updated = 7;
          start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
  	iwe.cmd = IWEVCUSTOM;
  	p = custom;
  
  	iwe.u.data.length = p - custom;
  	if (iwe.u.data.length)
              start = iwe_stream_add_point(info, start, stop, &iwe, custom);
  #if (WIRELESS_EXT < 18)
  	if (ieee->wpa_enabled && network->wpa_ie_len){
  		char buf[MAX_WPA_IE_LEN * 2 + 30];
  	//	printk("WPA IE\n");
  		u8 *p = buf;
  		p += sprintf(p, "wpa_ie=");
  		for (i = 0; i < network->wpa_ie_len; i++) {
  			p += sprintf(p, "%02x", network->wpa_ie[i]);
  		}
  
  		memset(&iwe, 0, sizeof(iwe));
  		iwe.cmd = IWEVCUSTOM;
  		iwe.u.data.length = strlen(buf);
                  start = iwe_stream_add_point(info, start, stop, &iwe, buf);
          }
  
  	if (ieee->wpa_enabled && network->rsn_ie_len){
  		char buf[MAX_WPA_IE_LEN * 2 + 30];
  
  		u8 *p = buf;
  		p += sprintf(p, "rsn_ie=");
  		for (i = 0; i < network->rsn_ie_len; i++) {
  			p += sprintf(p, "%02x", network->rsn_ie[i]);
  		}
  
  		memset(&iwe, 0, sizeof(iwe));
  		iwe.cmd = IWEVCUSTOM;
  		iwe.u.data.length = strlen(buf);
                  start = iwe_stream_add_point(info, start, stop, &iwe, buf);
          }
  #else
  	memset(&iwe, 0, sizeof(iwe));
  	if (network->wpa_ie_len)
  	{
  		char buf[MAX_WPA_IE_LEN];
  		memcpy(buf, network->wpa_ie, network->wpa_ie_len);
  		iwe.cmd = IWEVGENIE;
  		iwe.u.data.length = network->wpa_ie_len;
                  start = iwe_stream_add_point(info, start, stop, &iwe, buf);
          }
  	memset(&iwe, 0, sizeof(iwe));
  	if (network->rsn_ie_len)
  	{
  		char buf[MAX_WPA_IE_LEN];
  		memcpy(buf, network->rsn_ie, network->rsn_ie_len);
  		iwe.cmd = IWEVGENIE;
  		iwe.u.data.length = network->rsn_ie_len;
                  start = iwe_stream_add_point(info, start, stop, &iwe, buf);
          }
  #endif
  
  
  	/* Add EXTRA: Age to display seconds since last beacon/probe response
  	 * for given network. */
  	iwe.cmd = IWEVCUSTOM;
  	p = custom;
  	p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
  		      " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100));
  	iwe.u.data.length = p - custom;
  	if (iwe.u.data.length)
              start = iwe_stream_add_point(info, start, stop, &iwe, custom);
  
  	return start;
  }
  
  int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
  			  struct iw_request_info *info,
  			  union iwreq_data *wrqu, char *extra)
  {
  	struct ieee80211_network *network;
  	unsigned long flags;
  
  	char *ev = extra;
  //	char *stop = ev + IW_SCAN_MAX_DATA;
  	char *stop = ev + wrqu->data.length;//IW_SCAN_MAX_DATA;
  	//char *stop = ev + IW_SCAN_MAX_DATA;
  	int i = 0;
  	int err = 0;
  	IEEE80211_DEBUG_WX("Getting scan\n");
  	down(&ieee->wx_sem);
  	spin_lock_irqsave(&ieee->lock, flags);
  
  	list_for_each_entry(network, &ieee->network_list, list) {
  		i++;
  		if((stop-ev)<200)
  		{
  			err = -E2BIG;
  			break;
  												}
  		if (ieee->scan_age == 0 ||
  		    time_after(network->last_scanned + ieee->scan_age, jiffies))
  			ev = rtl819x_translate_scan(ieee, ev, stop, network, info);
  		else
  			IEEE80211_DEBUG_SCAN(
  				"Not showing network '%s ("
  				"%pM)' due to age (%lums).\n",
  				escape_essid(network->ssid,
  					     network->ssid_len),
  				network->bssid,
  				(jiffies - network->last_scanned) / (HZ / 100));
  	}
  
  	spin_unlock_irqrestore(&ieee->lock, flags);
  	up(&ieee->wx_sem);
  	wrqu->data.length = ev -  extra;
  	wrqu->data.flags = 0;
  
  	IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i);
  
  	return err;
  }
  
  int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
  			    struct iw_request_info *info,
  			    union iwreq_data *wrqu, char *keybuf)
  {
  	struct iw_point *erq = &(wrqu->encoding);
  	struct net_device *dev = ieee->dev;
  	struct ieee80211_security sec = {
  		.flags = 0
  	};
  	int i, key, key_provided, len;
  	struct ieee80211_crypt_data **crypt;
  
  	IEEE80211_DEBUG_WX("SET_ENCODE\n");
  
  	key = erq->flags & IW_ENCODE_INDEX;
  	if (key) {
  		if (key > WEP_KEYS)
  			return -EINVAL;
  		key--;
  		key_provided = 1;
  	} else {
  		key_provided = 0;
  		key = ieee->tx_keyidx;
  	}
  
  	IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
  			   "provided" : "default");
  	crypt = &ieee->crypt[key];
  
  	if (erq->flags & IW_ENCODE_DISABLED) {
  		if (key_provided && *crypt) {
  			IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
  					   key);
  			ieee80211_crypt_delayed_deinit(ieee, crypt);
  		} else
  			IEEE80211_DEBUG_WX("Disabling encryption.\n");
  
  		/* Check all the keys to see if any are still configured,
  		 * and if no key index was provided, de-init them all */
  		for (i = 0; i < WEP_KEYS; i++) {
  			if (ieee->crypt[i] != NULL) {
  				if (key_provided)
  					break;
  				ieee80211_crypt_delayed_deinit(
  					ieee, &ieee->crypt[i]);
  			}
  		}
  
  		if (i == WEP_KEYS) {
  			sec.enabled = 0;
  			sec.level = SEC_LEVEL_0;
  			sec.flags |= SEC_ENABLED | SEC_LEVEL;
  		}
  
  		goto done;
  	}
  
  
  
  	sec.enabled = 1;
  	sec.flags |= SEC_ENABLED;
  
  	if (*crypt != NULL && (*crypt)->ops != NULL &&
  	    strcmp((*crypt)->ops->name, "WEP") != 0) {
  		/* changing to use WEP; deinit previously used algorithm
  		 * on this key */
  		ieee80211_crypt_delayed_deinit(ieee, crypt);
  	}
  
  	if (*crypt == NULL) {
  		struct ieee80211_crypt_data *new_crypt;
  
  		/* take WEP into use */
  		new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
  				    GFP_KERNEL);
  		if (new_crypt == NULL)
  			return -ENOMEM;
  		new_crypt->ops = ieee80211_get_crypto_ops("WEP");
  		if (!new_crypt->ops)
  			new_crypt->ops = ieee80211_get_crypto_ops("WEP");
  		if (new_crypt->ops)
  			new_crypt->priv = new_crypt->ops->init(key);
  
  		if (!new_crypt->ops || !new_crypt->priv) {
  			kfree(new_crypt);
  			new_crypt = NULL;
  
  			printk(KERN_WARNING "%s: could not initialize WEP: "
  			       "load module ieee80211_crypt_wep\n",
  			       dev->name);
  			return -EOPNOTSUPP;
  		}
  		*crypt = new_crypt;
  	}
  
  	/* If a new key was provided, set it up */
  	if (erq->length > 0) {
  		len = erq->length <= 5 ? 5 : 13;
  		memcpy(sec.keys[key], keybuf, erq->length);
  		if (len > erq->length)
  			memset(sec.keys[key] + erq->length, 0,
  			       len - erq->length);
  		IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
  				   key, escape_essid(sec.keys[key], len),
  				   erq->length, len);
  		sec.key_sizes[key] = len;
   		(*crypt)->ops->set_key(sec.keys[key], len, NULL,
  				       (*crypt)->priv);
  		sec.flags |= (1 << key);
  		/* This ensures a key will be activated if no key is
  		 * explicitely set */
  		if (key == sec.active_key)
  			sec.flags |= SEC_ACTIVE_KEY;
  		ieee->tx_keyidx = key;
  
  	} else {
  		len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
  					     NULL, (*crypt)->priv);
  		if (len == 0) {
  			/* Set a default key of all 0 */
  			printk("Setting key %d to all zero.\n",
  					   key);
  
  			IEEE80211_DEBUG_WX("Setting key %d to all zero.\n",
  					   key);
  			memset(sec.keys[key], 0, 13);
  			(*crypt)->ops->set_key(sec.keys[key], 13, NULL,
  					       (*crypt)->priv);
  			sec.key_sizes[key] = 13;
  			sec.flags |= (1 << key);
  		}
  
  		/* No key data - just set the default TX key index */
  		if (key_provided) {
  			IEEE80211_DEBUG_WX(
  				"Setting key %d to default Tx key.\n", key);
  			ieee->tx_keyidx = key;
  			sec.active_key = key;
  			sec.flags |= SEC_ACTIVE_KEY;
  		}
  	}
  
   done:
  	ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
  	ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
  	sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
  	sec.flags |= SEC_AUTH_MODE;
  	IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
  			   "OPEN" : "SHARED KEY");
  
  	/* For now we just support WEP, so only set that security level...
  	 * TODO: When WPA is added this is one place that needs to change */
  	sec.flags |= SEC_LEVEL;
  	sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
  
  	if (ieee->set_security)
  		ieee->set_security(dev, &sec);
  
  	/* Do not reset port if card is in Managed mode since resetting will
  	 * generate new IEEE 802.11 authentication which may end up in looping
  	 * with IEEE 802.1X.  If your hardware requires a reset after WEP
  	 * configuration (for example... Prism2), implement the reset_port in
  	 * the callbacks structures used to initialize the 802.11 stack. */
  	if (ieee->reset_on_keychange &&
  	    ieee->iw_mode != IW_MODE_INFRA &&
  	    ieee->reset_port && ieee->reset_port(dev)) {
  		printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
  		return -EINVAL;
  	}
  	return 0;
  }
  
  int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
  			    struct iw_request_info *info,
  			    union iwreq_data *wrqu, char *keybuf)
  {
  	struct iw_point *erq = &(wrqu->encoding);
  	int len, key;
  	struct ieee80211_crypt_data *crypt;
  
  	IEEE80211_DEBUG_WX("GET_ENCODE\n");
  
  	if(ieee->iw_mode == IW_MODE_MONITOR)
  		return -1;
  
  	key = erq->flags & IW_ENCODE_INDEX;
  	if (key) {
  		if (key > WEP_KEYS)
  			return -EINVAL;
  		key--;
  	} else
  		key = ieee->tx_keyidx;
  
  	crypt = ieee->crypt[key];
  	erq->flags = key + 1;
  
  	if (crypt == NULL || crypt->ops == NULL) {
  		erq->length = 0;
  		erq->flags |= IW_ENCODE_DISABLED;
  		return 0;
  	}
  #if 0
  	if (strcmp(crypt->ops->name, "WEP") != 0) {
  		/* only WEP is supported with wireless extensions, so just
  		 * report that encryption is used */
  		erq->length = 0;
  		erq->flags |= IW_ENCODE_ENABLED;
  		return 0;
  	}
  #endif
  	len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
  	erq->length = (len >= 0 ? len : 0);
  
  	erq->flags |= IW_ENCODE_ENABLED;
  
  	if (ieee->open_wep)
  		erq->flags |= IW_ENCODE_OPEN;
  	else
  		erq->flags |= IW_ENCODE_RESTRICTED;
  
  	return 0;
  }
  #if (WIRELESS_EXT >= 18)
  int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu, char *extra)
  {
  	int ret = 0;
  	struct net_device *dev = ieee->dev;
          struct iw_point *encoding = &wrqu->encoding;
          struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
          int i, idx;
          int group_key = 0;
          const char *alg;
          struct ieee80211_crypto_ops *ops;
          struct ieee80211_crypt_data **crypt;
  
          struct ieee80211_security sec = {
                  .flags = 0,
          };
  	//printk("======>encoding flag:%x,ext flag:%x, ext alg:%d\n", encoding->flags,ext->ext_flags, ext->alg);
          idx = encoding->flags & IW_ENCODE_INDEX;
          if (idx) {
                  if (idx < 1 || idx > WEP_KEYS)
                          return -EINVAL;
                  idx--;
          } else
                  idx = ieee->tx_keyidx;
  
          if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
  
                  crypt = &ieee->crypt[idx];
  
                  group_key = 1;
          } else {
                  /* some Cisco APs use idx>0 for unicast in dynamic WEP */
  		//printk("not group key, flags:%x, ext->alg:%d\n", ext->ext_flags, ext->alg);
                  if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
                          return -EINVAL;
                  if (ieee->iw_mode == IW_MODE_INFRA)
  
                          crypt = &ieee->crypt[idx];
  
                  else
                          return -EINVAL;
          }
  
          sec.flags |= SEC_ENABLED;// | SEC_ENCRYPT;
          if ((encoding->flags & IW_ENCODE_DISABLED) ||
              ext->alg == IW_ENCODE_ALG_NONE) {
                  if (*crypt)
                          ieee80211_crypt_delayed_deinit(ieee, crypt);
  
                  for (i = 0; i < WEP_KEYS; i++)
  
  			if (ieee->crypt[i] != NULL)
  
                                  break;
  
                  if (i == WEP_KEYS) {
                          sec.enabled = 0;
                        //  sec.encrypt = 0;
                          sec.level = SEC_LEVEL_0;
                          sec.flags |= SEC_LEVEL;
                  }
  		//printk("disabled: flag:%x\n", encoding->flags);
                  goto done;
          }
  
  	sec.enabled = 1;
      //    sec.encrypt = 1;
  #if 0
          if (group_key ? !ieee->host_mc_decrypt :
              !(ieee->host_encrypt || ieee->host_decrypt ||
                ieee->host_encrypt_msdu))
                  goto skip_host_crypt;
  #endif
          switch (ext->alg) {
          case IW_ENCODE_ALG_WEP:
                  alg = "WEP";
                  break;
          case IW_ENCODE_ALG_TKIP:
                  alg = "TKIP";
                  break;
          case IW_ENCODE_ALG_CCMP:
                  alg = "CCMP";
                  break;
          default:
                  IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
                                     dev->name, ext->alg);
                  ret = -EINVAL;
                  goto done;
          }
  	printk("alg name:%s\n",alg);
  
  	 ops = ieee80211_get_crypto_ops(alg);
          if (ops == NULL)
                  ops = ieee80211_get_crypto_ops(alg);
          if (ops == NULL) {
                  IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
                                     dev->name, ext->alg);
  		printk("========>unknown crypto alg %d\n", ext->alg);
                  ret = -EINVAL;
                  goto done;
          }
  
          if (*crypt == NULL || (*crypt)->ops != ops) {
                  struct ieee80211_crypt_data *new_crypt;
  
                  ieee80211_crypt_delayed_deinit(ieee, crypt);
  
  #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
                  new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
  #else
                  new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
  		memset(new_crypt,0,sizeof(*new_crypt));
  #endif
                  if (new_crypt == NULL) {
                          ret = -ENOMEM;
                          goto done;
                  }
                  new_crypt->ops = ops;
                  if (new_crypt->ops)
                          new_crypt->priv = new_crypt->ops->init(idx);
                  if (new_crypt->priv == NULL) {
                          kfree(new_crypt);
                          ret = -EINVAL;
                          goto done;
                  }
                  *crypt = new_crypt;
  
   	}
  
          if (ext->key_len > 0 && (*crypt)->ops->set_key &&
              (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
                                     (*crypt)->priv) < 0) {
                  IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
  		printk("key setting failed\n");
                  ret = -EINVAL;
                  goto done;
          }
  #if 1
   //skip_host_crypt:
  	//printk("skip_host_crypt:ext_flags:%x\n", ext->ext_flags);
          if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
                  ieee->tx_keyidx = idx;
                  sec.active_key = idx;
                  sec.flags |= SEC_ACTIVE_KEY;
          }
  
          if (ext->alg != IW_ENCODE_ALG_NONE) {
                  //memcpy(sec.keys[idx], ext->key, ext->key_len);
                  sec.key_sizes[idx] = ext->key_len;
                  sec.flags |= (1 << idx);
                  if (ext->alg == IW_ENCODE_ALG_WEP) {
                        //  sec.encode_alg[idx] = SEC_ALG_WEP;
                          sec.flags |= SEC_LEVEL;
                          sec.level = SEC_LEVEL_1;
                  } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
                        //  sec.encode_alg[idx] = SEC_ALG_TKIP;
                          sec.flags |= SEC_LEVEL;
                          sec.level = SEC_LEVEL_2;
                  } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
                         // sec.encode_alg[idx] = SEC_ALG_CCMP;
                          sec.flags |= SEC_LEVEL;
                          sec.level = SEC_LEVEL_3;
                  }
                  /* Don't set sec level for group keys. */
                  if (group_key)
                          sec.flags &= ~SEC_LEVEL;
          }
  #endif
  done:
          if (ieee->set_security)
                  ieee->set_security(ieee->dev, &sec);
  
  	 if (ieee->reset_on_keychange &&
              ieee->iw_mode != IW_MODE_INFRA &&
              ieee->reset_port && ieee->reset_port(dev)) {
                  IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
                  return -EINVAL;
          }
          return ret;
  }
  
  int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee,
  			       struct iw_request_info *info,
  			       union iwreq_data *wrqu, char *extra)
  {
  	struct iw_point *encoding = &wrqu->encoding;
  	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
  	struct ieee80211_crypt_data *crypt;
  	int idx, max_key_len;
  
  	max_key_len = encoding->length - sizeof(*ext);
  	if (max_key_len < 0)
  		return -EINVAL;
  
  	idx = encoding->flags & IW_ENCODE_INDEX;
  	if (idx) {
  		if (idx < 1 || idx > WEP_KEYS)
  			return -EINVAL;
  		idx--;
  	} else
  		idx = ieee->tx_keyidx;
  
  	if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
  	    ext->alg != IW_ENCODE_ALG_WEP)
  		if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
  			return -EINVAL;
  
  	crypt = ieee->crypt[idx];
  	encoding->flags = idx + 1;
  	memset(ext, 0, sizeof(*ext));
  
  	if (crypt == NULL || crypt->ops == NULL ) {
  		ext->alg = IW_ENCODE_ALG_NONE;
  		ext->key_len = 0;
  		encoding->flags |= IW_ENCODE_DISABLED;
  	} else {
  		if (strcmp(crypt->ops->name, "WEP") == 0 )
  			ext->alg = IW_ENCODE_ALG_WEP;
  		else if (strcmp(crypt->ops->name, "TKIP"))
  			ext->alg = IW_ENCODE_ALG_TKIP;
  		else if (strcmp(crypt->ops->name, "CCMP"))
  			ext->alg = IW_ENCODE_ALG_CCMP;
  		else
  			return -EINVAL;
  		ext->key_len = crypt->ops->get_key(ext->key, SCM_KEY_LEN, NULL, crypt->priv);
  		encoding->flags |= IW_ENCODE_ENABLED;
  		if (ext->key_len &&
  		    (ext->alg == IW_ENCODE_ALG_TKIP ||
  		     ext->alg == IW_ENCODE_ALG_CCMP))
  			ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
  
  	}
  
  	return 0;
  }
  
  int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 union iwreq_data *wrqu, char *extra)
  {
  	struct iw_mlme *mlme = (struct iw_mlme *) extra;
  	switch (mlme->cmd) {
          case IW_MLME_DEAUTH:
  	case IW_MLME_DISASSOC:
  		ieee80211_disassociate(ieee);
  		break;
  	 default:
                  return -EOPNOTSUPP;
          }
  	return 0;
  }
  
  int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
                                 struct iw_request_info *info,
                                 struct iw_param *data, char *extra)
  {
  	switch (data->flags & IW_AUTH_INDEX) {
          case IW_AUTH_WPA_VERSION:
  	     /*need to support wpa2 here*/
  		//printk("wpa version:%x\n", data->value);
  		break;
          case IW_AUTH_CIPHER_PAIRWISE:
          case IW_AUTH_CIPHER_GROUP:
          case IW_AUTH_KEY_MGMT:
                  /*
   *                  * Host AP driver does not use these parameters and allows
   *                                   * wpa_supplicant to control them internally.
   *                                                    */
                  break;
          case IW_AUTH_TKIP_COUNTERMEASURES:
                  ieee->tkip_countermeasures = data->value;
                  break;
          case IW_AUTH_DROP_UNENCRYPTED:
                  ieee->drop_unencrypted = data->value;
  		break;
  
  	case IW_AUTH_80211_AUTH_ALG:
  		//printk("======>%s():data->value is %d\n",__FUNCTION__,data->value);
  	//	ieee->open_wep = (data->value&IW_AUTH_ALG_OPEN_SYSTEM)?1:0;
  		if(data->value & IW_AUTH_ALG_SHARED_KEY){
  			ieee->open_wep = 0;
  			ieee->auth_mode = 1;
  		}
  		else if(data->value & IW_AUTH_ALG_OPEN_SYSTEM){
  			ieee->open_wep = 1;
  			ieee->auth_mode = 0;
  		}
  		else if(data->value & IW_AUTH_ALG_LEAP){
  			ieee->open_wep = 1;
  			ieee->auth_mode = 2;
  			//printk("hahahaa:LEAP\n");
  		}
  		else
  			return -EINVAL;
  		//printk("open_wep:%d\n", ieee->open_wep);
  		break;
  
  #if 1
  	case IW_AUTH_WPA_ENABLED:
  		ieee->wpa_enabled = (data->value)?1:0;
  		//printk("enable wpa:%d\n", ieee->wpa_enabled);
  		break;
  
  #endif
  	case IW_AUTH_RX_UNENCRYPTED_EAPOL:
                  ieee->ieee802_1x = data->value;
  		break;
  	case IW_AUTH_PRIVACY_INVOKED:
  		ieee->privacy_invoked = data->value;
  		break;
  	default:
                  return -EOPNOTSUPP;
  	}
  	return 0;
  }
  #endif
  #if 1
  int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
  {
  	u8 *buf;
  
  	if (len>MAX_WPA_IE_LEN || (len && ie == NULL))
  	{
  	//	printk("return error out, len:%d\n", len);
  	return -EINVAL;
  	}
  
  
  	if (len)
  	{
  		if (len != ie[1]+2)
  		{
  			printk("len:%zu, ie:%d\n", len, ie[1]);
  			return -EINVAL;
  		}
  		buf = kmemdup(ie, len, GFP_KERNEL);
  		if (buf == NULL)
  			return -ENOMEM;
  		kfree(ieee->wpa_ie);
  		ieee->wpa_ie = buf;
  		ieee->wpa_ie_len = len;
  	}
  	else{
  		if (ieee->wpa_ie)
  		kfree(ieee->wpa_ie);
  		ieee->wpa_ie = NULL;
  		ieee->wpa_ie_len = 0;
  	}
  	return 0;
  
  }
  #endif
  