wpactl.c

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/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 *
 * File: wpactl.c
 *
 * Purpose: handle wpa supplicant ioctl input/out functions
 *
 * Author: Lyndon Chen
 *
 * Date: July 28, 2006
 *
 * Functions:
 *
 * Revision History:
 *
 */

#include "wpactl.h"
#include "key.h"
#include "mac.h"
#include "device.h"
#include "wmgr.h"
#include "iocmd.h"
#include "iowpa.h"
#include "control.h"
#include "rndis.h"
#include "rf.h"

/*---------------------  Static Definitions -------------------------*/

#define VIAWGET_WPA_MAX_BUF_SIZE 1024

static const int frequency_list[] = {
    2412, 2417, 2422, 2427, 2432, 2437, 2442,
    2447, 2452, 2457, 2462, 2467, 2472, 2484
};

/*---------------------  Static Classes  ----------------------------*/

/*---------------------  Static Variables  --------------------------*/
static int msglevel = MSG_LEVEL_INFO;

/*---------------------  Static Functions  --------------------------*/

/*---------------------  Export Variables  --------------------------*/
static void wpadev_setup(struct net_device *dev)
{
    dev->type               = ARPHRD_IEEE80211;
    dev->hard_header_len    = ETH_HLEN;
    dev->mtu                = 2048;
    dev->addr_len           = ETH_ALEN;
    dev->tx_queue_len       = 1000;

    memset(dev->broadcast, 0xFF, ETH_ALEN);

    dev->flags              = IFF_BROADCAST | IFF_MULTICAST;
}

/*
 * Description:
 *      register netdev for wpa supplicant daemon
 *
 * Parameters:
 *  In:
 *      pDevice             -
 *      enable              -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_init_wpadev(PSDevice pDevice)
{
    PSDevice wpadev_priv;
    struct net_device *dev = pDevice->dev;
    int ret = 0;

    pDevice->wpadev = alloc_netdev(sizeof(PSDevice), "vntwpa", wpadev_setup);
    if (pDevice->wpadev == NULL)
        return -ENOMEM;

    wpadev_priv = netdev_priv(pDevice->wpadev);
    *wpadev_priv = *pDevice;
    memcpy(pDevice->wpadev->dev_addr, dev->dev_addr, ETH_ALEN);
    pDevice->wpadev->base_addr = dev->base_addr;
    pDevice->wpadev->irq = dev->irq;
    pDevice->wpadev->mem_start = dev->mem_start;
    pDevice->wpadev->mem_end = dev->mem_end;
    ret = register_netdev(pDevice->wpadev);
    if (ret) {
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: register_netdev(WPA) failed!\n",
            dev->name);
        free_netdev(pDevice->wpadev);
        return -1;
    }

    if (pDevice->skb == NULL) {
        pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
        if (pDevice->skb == NULL)
            return -ENOMEM;
    }

    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Registered netdev %s for WPA management\n",
        dev->name, pDevice->wpadev->name);

    return 0;
}

/*
 * Description:
 *      unregister net_device (wpadev)
 *
 * Parameters:
 *  In:
 *      pDevice             -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_release_wpadev(PSDevice pDevice)
{
    if (pDevice->skb) {
        dev_kfree_skb(pDevice->skb);
        pDevice->skb = NULL;
    }

    if (pDevice->wpadev) {
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n",
            pDevice->dev->name, pDevice->wpadev->name);
        unregister_netdev(pDevice->wpadev);
        free_netdev(pDevice->wpadev);
        pDevice->wpadev = NULL;
    }

    return 0;
}

/*
 * Description:
 *      Set enable/disable dev for wpa supplicant daemon
 *
 * Parameters:
 *  In:
 *      pDevice             -
 *      val                 -
 *  Out:
 *
 * Return Value:
 *
 */
int wpa_set_wpadev(PSDevice pDevice, int val)
{
    if (val)
        return wpa_init_wpadev(pDevice);
    return wpa_release_wpadev(pDevice);
}

/*
 * Description:
 *      Set WPA algorithm & keys
 *
 * Parameters:
 *  In:
 *      pDevice -
 *      param -
 *  Out:
 *
 * Return Value:
 *
 */
 int wpa_set_keys(PSDevice pDevice, void *ctx, BOOL  fcpfkernel)
{
    struct viawget_wpa_param *param = ctx;
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    DWORD dwKeyIndex = 0;
    BYTE abyKey[MAX_KEY_LEN];
    BYTE abySeq[MAX_KEY_LEN];
    QWORD KeyRSC;
    BYTE byKeyDecMode = KEY_CTL_WEP;
    int ret = 0;
    int uu;
    int ii;

    if (param->u.wpa_key.alg_name > WPA_ALG_CCMP)
        return -EINVAL;

    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "param->u.wpa_key.alg_name = %d \n",
        param->u.wpa_key.alg_name);
    if (param->u.wpa_key.alg_name == WPA_ALG_NONE) {
        pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
        pDevice->bEncryptionEnable = FALSE;
        pDevice->byKeyIndex = 0;
        pDevice->bTransmitKey = FALSE;
        for (uu=0; uu<MAX_KEY_TABLE; uu++) {
            MACvDisableKeyEntry(pDevice, uu);
        }
        return ret;
    }

    if (param->u.wpa_key.key && param->u.wpa_key.key_len > sizeof(abyKey))
        return -EINVAL;

    spin_unlock_irq(&pDevice->lock);
    if (param->u.wpa_key.key && fcpfkernel) {
        memcpy(&abyKey[0], param->u.wpa_key.key, param->u.wpa_key.key_len);
    } else {
        if (param->u.wpa_key.key &&
            copy_from_user(&abyKey[0], param->u.wpa_key.key,
                param->u.wpa_key.key_len)) {
            spin_lock_irq(&pDevice->lock);
            return -EINVAL;
        }
    }
    spin_lock_irq(&pDevice->lock);

    dwKeyIndex = (DWORD)(param->u.wpa_key.key_index);

    if (param->u.wpa_key.alg_name == WPA_ALG_WEP) {
        if (dwKeyIndex > 3) {
            return -EINVAL;
        } else {
            if (param->u.wpa_key.set_tx) {
                pDevice->byKeyIndex = (BYTE)dwKeyIndex;
                pDevice->bTransmitKey = TRUE;
                dwKeyIndex |= (1 << 31);
            }
            KeybSetDefaultKey(  pDevice,
                    &(pDevice->sKey),
                    dwKeyIndex & ~(BIT30 | USE_KEYRSC),
                    param->u.wpa_key.key_len,
                    NULL,
                    abyKey,
                    KEY_CTL_WEP
                );

        }
        pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
        pDevice->bEncryptionEnable = TRUE;
        return ret;
    }


    if (param->u.wpa_key.seq && param->u.wpa_key.seq_len > sizeof(abySeq))
        return -EINVAL;

    spin_unlock_irq(&pDevice->lock);
        if (param->u.wpa_key.seq && fcpfkernel) {
        memcpy(&abySeq[0], param->u.wpa_key.seq, param->u.wpa_key.seq_len);
    } else {
        if (param->u.wpa_key.seq &&
            copy_from_user(&abySeq[0], param->u.wpa_key.seq,
                param->u.wpa_key.seq_len)) {
            spin_lock_irq(&pDevice->lock);
            return -EINVAL;
        }
    }
    spin_lock_irq(&pDevice->lock);

    if (param->u.wpa_key.seq_len > 0) {
        for (ii = 0 ; ii < param->u.wpa_key.seq_len ; ii++) {
            if (ii < 4)
                LODWORD(KeyRSC) |= (abySeq[ii] << (ii * 8));
            else
                HIDWORD(KeyRSC) |= (abySeq[ii] << ((ii-4) * 8));
        }
        dwKeyIndex |= 1 << 29;
    }

    if (param->u.wpa_key.key_index >= MAX_GROUP_KEY) {
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "return  dwKeyIndex > 3\n");
        return -EINVAL;
    }

    if (param->u.wpa_key.alg_name == WPA_ALG_TKIP) {
        pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled;
    }

    if (param->u.wpa_key.alg_name == WPA_ALG_CCMP) {
        pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled;
    }

    if (param->u.wpa_key.set_tx)
        dwKeyIndex |= (1 << 31);


    if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled)
        byKeyDecMode = KEY_CTL_CCMP;
    else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled)
        byKeyDecMode = KEY_CTL_TKIP;
    else
        byKeyDecMode = KEY_CTL_WEP;

    // Fix HCT test that set 256 bits KEY and Ndis802_11Encryption3Enabled
    if (pDevice->eEncryptionStatus == Ndis802_11Encryption3Enabled) {
        if (param->u.wpa_key.key_len == MAX_KEY_LEN)
            byKeyDecMode = KEY_CTL_TKIP;
        else if (param->u.wpa_key.key_len == WLAN_WEP40_KEYLEN)
            byKeyDecMode = KEY_CTL_WEP;
        else if (param->u.wpa_key.key_len == WLAN_WEP104_KEYLEN)
            byKeyDecMode = KEY_CTL_WEP;
    } else if (pDevice->eEncryptionStatus == Ndis802_11Encryption2Enabled) {
        if (param->u.wpa_key.key_len == WLAN_WEP40_KEYLEN)
            byKeyDecMode = KEY_CTL_WEP;
        else if (param->u.wpa_key.key_len == WLAN_WEP104_KEYLEN)
            byKeyDecMode = KEY_CTL_WEP;
    }

    // Check TKIP key length
    if ((byKeyDecMode == KEY_CTL_TKIP) &&
        (param->u.wpa_key.key_len != MAX_KEY_LEN)) {
        // TKIP Key must be 256 bits
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "return - TKIP Key must be 256 bits!\n");
        return -EINVAL;
    }
    // Check AES key length
    if ((byKeyDecMode == KEY_CTL_CCMP) &&
        (param->u.wpa_key.key_len != AES_KEY_LEN)) {
        // AES Key must be 128 bits
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "return - AES Key must be 128 bits\n");
        return -EINVAL;
    }

    if (is_broadcast_ether_addr(&param->addr[0]) || (param->addr == NULL)) {
        /* if broadcast, set the key as every key entry's group key */
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Groupe Key Assign.\n");

        if ((KeybSetAllGroupKey(pDevice, &(pDevice->sKey), dwKeyIndex,
                            param->u.wpa_key.key_len,
                            (PQWORD) &(KeyRSC),
                            (PBYTE)abyKey,
                            byKeyDecMode
                    ) == TRUE) &&
            (KeybSetDefaultKey(pDevice,
                    &(pDevice->sKey),
                    dwKeyIndex,
                    param->u.wpa_key.key_len,
                    (PQWORD) &(KeyRSC),
                    (PBYTE)abyKey,
                    byKeyDecMode
                ) == TRUE) ) {
            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "GROUP Key Assign.\n");
        } else {
            return -EINVAL;
        }
    } else {
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Pairwise Key Assign.\n");
        // BSSID not 0xffffffffffff
        // Pairwise Key can't be WEP
        if (byKeyDecMode == KEY_CTL_WEP) {
            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Pairwise Key can't be WEP\n");
            return -EINVAL;
        }
        dwKeyIndex |= (1 << 30); // set pairwise key
        if (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) {
            //DBG_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA - WMAC_CONFIG_IBSS_STA\n"));
            return -EINVAL;
        }
        if (KeybSetKey(pDevice, &(pDevice->sKey), &param->addr[0],
                dwKeyIndex, param->u.wpa_key.key_len,
                (PQWORD) &(KeyRSC), (PBYTE)abyKey, byKeyDecMode
                ) == TRUE) {
            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Pairwise Key Set\n");
        } else {
            // Key Table Full
            if (!compare_ether_addr(&param->addr[0], pDevice->abyBSSID)) {
                //DBG_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA -Key Table Full.2\n"));
                return -EINVAL;
            } else {
                // Save Key and configure just before associate/reassociate to BSSID
                // we do not implement now
                return -EINVAL;
            }
        }
    } // BSSID not 0xffffffffffff
    if ((ret == 0) && ((param->u.wpa_key.set_tx) != 0)) {
        pDevice->byKeyIndex = (BYTE)param->u.wpa_key.key_index;
        pDevice->bTransmitKey = TRUE;
    }
    pDevice->bEncryptionEnable = TRUE;

    return ret;
}


/*
 * Description:
 *      enable wpa auth & mode
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_set_wpa(PSDevice pDevice, struct viawget_wpa_param *param)
{
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    int ret = 0;

    pMgmt->eAuthenMode = WMAC_AUTH_OPEN;
    pMgmt->bShareKeyAlgorithm = FALSE;

    return ret;
}

 /*
 * Description:
 *      set disassociate
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_set_disassociate(PSDevice pDevice, struct viawget_wpa_param *param)
{
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    int ret = 0;

    spin_lock_irq(&pDevice->lock);
    if (pDevice->bLinkPass) {
        if (!memcmp(param->addr, pMgmt->abyCurrBSSID, 6))
            bScheduleCommand((void *)pDevice, WLAN_CMD_DISASSOCIATE, NULL);
    }
    spin_unlock_irq(&pDevice->lock);

    return ret;
}

/*
 * Description:
 *      enable scan process
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_set_scan(PSDevice pDevice, struct viawget_wpa_param *param)
{
    int ret = 0;

        PSMgmtObject pMgmt = &pDevice->sMgmtObj;
        PWLAN_IE_SSID pItemSSID;
    printk("wpa_set_scan-->desired [ssid=%s,ssid_len=%d]\n",
        param->u.scan_req.ssid,param->u.scan_req.ssid_len);
// Set the SSID
    memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
    pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
    pItemSSID->byElementID = WLAN_EID_SSID;
    memcpy(pItemSSID->abySSID, param->u.scan_req.ssid, param->u.scan_req.ssid_len);
    pItemSSID->len = param->u.scan_req.ssid_len;

    spin_lock_irq(&pDevice->lock);
    BSSvClearBSSList((void *) pDevice, pDevice->bLinkPass);
    bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN,
            pMgmt->abyDesireSSID);
    spin_unlock_irq(&pDevice->lock);

    return ret;
}

/*
 * Description:
 *      get bssid
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_get_bssid(PSDevice pDevice, struct viawget_wpa_param *param)
{
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    int ret = 0;
    memcpy(param->u.wpa_associate.bssid, pMgmt->abyCurrBSSID, 6);

    return ret;
}

/*
 * Description:
 *      get bssid
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_get_ssid(PSDevice pDevice, struct viawget_wpa_param *param)
{
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    PWLAN_IE_SSID pItemSSID;
    int ret = 0;

    pItemSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID;

    memcpy(param->u.wpa_associate.ssid, pItemSSID->abySSID, pItemSSID->len);
    param->u.wpa_associate.ssid_len = pItemSSID->len;

    return ret;
}

/*
 * Description:
 *      get scan results
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_get_scan(PSDevice pDevice, struct viawget_wpa_param *param)
{
    struct viawget_scan_result *scan_buf;
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    PWLAN_IE_SSID pItemSSID;
    PKnownBSS pBSS;
    PBYTE pBuf;
    int ret = 0;
    u16 count = 0;
    u16 ii;
    u16 jj;
    long ldBm; //James //add

//******mike:bubble sort by stronger RSSI*****//
    PBYTE ptempBSS;

    ptempBSS = kmalloc(sizeof(KnownBSS), GFP_ATOMIC);

    if (ptempBSS == NULL) {
        printk("bubble sort kmalloc memory fail@@@\n");
        ret = -ENOMEM;
        return ret;
    }

    for (ii = 0; ii < MAX_BSS_NUM; ii++) {
        for (jj = 0; jj < MAX_BSS_NUM - ii - 1; jj++) {
            if ((pMgmt->sBSSList[jj].bActive != TRUE)
                || ((pMgmt->sBSSList[jj].uRSSI > pMgmt->sBSSList[jj + 1].uRSSI)
                    && (pMgmt->sBSSList[jj + 1].bActive != FALSE))) {
                memcpy(ptempBSS,&pMgmt->sBSSList[jj], sizeof(KnownBSS));
                memcpy(&pMgmt->sBSSList[jj], &pMgmt->sBSSList[jj + 1],
                    sizeof(KnownBSS));
                memcpy(&pMgmt->sBSSList[jj + 1], ptempBSS, sizeof(KnownBSS));
            }
        }
    }
    kfree(ptempBSS);

    count = 0;
    pBSS = &(pMgmt->sBSSList[0]);
    for (ii = 0; ii < MAX_BSS_NUM; ii++) {
        pBSS = &(pMgmt->sBSSList[ii]);
        if (!pBSS->bActive)
            continue;
        count++;
    }

    pBuf = kcalloc(count, sizeof(struct viawget_scan_result), GFP_ATOMIC);

    if (pBuf == NULL) {
        ret = -ENOMEM;
        return ret;
    }
    scan_buf = (struct viawget_scan_result *)pBuf;
    pBSS = &(pMgmt->sBSSList[0]);
    for (ii = 0, jj = 0; ii < MAX_BSS_NUM; ii++) {
        pBSS = &(pMgmt->sBSSList[ii]);
        if (pBSS->bActive) {
            if (jj >= count)
                break;
            memcpy(scan_buf->bssid, pBSS->abyBSSID, WLAN_BSSID_LEN);
            pItemSSID = (PWLAN_IE_SSID)pBSS->abySSID;
            memcpy(scan_buf->ssid, pItemSSID->abySSID, pItemSSID->len);
            scan_buf->ssid_len = pItemSSID->len;
            scan_buf->freq = frequency_list[pBSS->uChannel-1];
            scan_buf->caps = pBSS->wCapInfo; // DavidWang for sharemode

            RFvRSSITodBm(pDevice, (BYTE)(pBSS->uRSSI), &ldBm);
            if (-ldBm < 50)
                scan_buf->qual = 100;
            else if (-ldBm > 90)
                scan_buf->qual = 0;
            else
                scan_buf->qual=(40-(-ldBm-50))*100/40;

            //James
            //scan_buf->caps = pBSS->wCapInfo;
            //scan_buf->qual =
            scan_buf->noise = 0;
            scan_buf->level = ldBm;

            //scan_buf->maxrate =
            if (pBSS->wWPALen != 0) {
                scan_buf->wpa_ie_len = pBSS->wWPALen;
                memcpy(scan_buf->wpa_ie, pBSS->byWPAIE, pBSS->wWPALen);
            }
            if (pBSS->wRSNLen != 0) {
                scan_buf->rsn_ie_len = pBSS->wRSNLen;
                memcpy(scan_buf->rsn_ie, pBSS->byRSNIE, pBSS->wRSNLen);
            }
            scan_buf = (struct viawget_scan_result *)((PBYTE)scan_buf + sizeof(struct viawget_scan_result));
            jj ++;
        }
    }

    if (jj < count)
        count = jj;

    if (copy_to_user(param->u.scan_results.buf, pBuf, sizeof(struct viawget_scan_result) * count))
        ret = -EFAULT;

    param->u.scan_results.scan_count = count;
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " param->u.scan_results.scan_count = %d\n", count);

    kfree(pBuf);
    return ret;
}

/*
 * Description:
 *      set associate with AP
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      param     -
 *  Out:
 *
 * Return Value:
 *
 */
static int wpa_set_associate(PSDevice pDevice, struct viawget_wpa_param *param)
{
    PSMgmtObject pMgmt = &pDevice->sMgmtObj;
    PWLAN_IE_SSID pItemSSID;
    BYTE abyNullAddr[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
    BYTE abyWPAIE[64];
    int ret = 0;
    BOOL bwepEnabled=FALSE;

    // set key type & algorithm
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pairwise_suite = %d\n", param->u.wpa_associate.pairwise_suite);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "group_suite = %d\n", param->u.wpa_associate.group_suite);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "key_mgmt_suite = %d\n", param->u.wpa_associate.key_mgmt_suite);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "auth_alg = %d\n", param->u.wpa_associate.auth_alg);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "mode = %d\n", param->u.wpa_associate.mode);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wpa_ie_len = %d\n", param->u.wpa_associate.wpa_ie_len);
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Roaming dBm = %d\n", param->u.wpa_associate.roam_dbm); // Davidwang

    if (param->u.wpa_associate.wpa_ie) {
        if (param->u.wpa_associate.wpa_ie_len > sizeof(abyWPAIE))
            return -EINVAL;

        if (copy_from_user(&abyWPAIE[0], param->u.wpa_associate.wpa_ie,
                    param->u.wpa_associate.wpa_ie_len))
            return -EFAULT;
    }

    if (param->u.wpa_associate.mode == 1)
        pMgmt->eConfigMode = WMAC_CONFIG_IBSS_STA;
    else
        pMgmt->eConfigMode = WMAC_CONFIG_ESS_STA;

    // set bssid
    if (memcmp(param->u.wpa_associate.bssid, &abyNullAddr[0], 6) != 0)
        memcpy(pMgmt->abyDesireBSSID, param->u.wpa_associate.bssid, 6);
    // set ssid
    memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
    pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
    pItemSSID->byElementID = WLAN_EID_SSID;
    pItemSSID->len = param->u.wpa_associate.ssid_len;
    memcpy(pItemSSID->abySSID, param->u.wpa_associate.ssid, pItemSSID->len);

    if (param->u.wpa_associate.wpa_ie_len == 0) {
        if (param->u.wpa_associate.auth_alg & AUTH_ALG_SHARED_KEY)
            pMgmt->eAuthenMode = WMAC_AUTH_SHAREKEY;
        else
            pMgmt->eAuthenMode = WMAC_AUTH_OPEN;
    } else if (abyWPAIE[0] == RSN_INFO_ELEM) {
        if (param->u.wpa_associate.key_mgmt_suite == KEY_MGMT_PSK)
            pMgmt->eAuthenMode = WMAC_AUTH_WPA2PSK;
        else
            pMgmt->eAuthenMode = WMAC_AUTH_WPA2;
    } else {
        if (param->u.wpa_associate.key_mgmt_suite == KEY_MGMT_WPA_NONE)
            pMgmt->eAuthenMode = WMAC_AUTH_WPANONE;
        else if (param->u.wpa_associate.key_mgmt_suite == KEY_MGMT_PSK)
            pMgmt->eAuthenMode = WMAC_AUTH_WPAPSK;
        else
            pMgmt->eAuthenMode = WMAC_AUTH_WPA;
    }

    switch (param->u.wpa_associate.pairwise_suite) {
    case CIPHER_CCMP:
        pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled;
        break;
    case CIPHER_TKIP:
        pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled;
        break;
    case CIPHER_WEP40:
    case CIPHER_WEP104:
        pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
        bwepEnabled = TRUE;
        break;
    case CIPHER_NONE:
        if (param->u.wpa_associate.group_suite == CIPHER_CCMP)
            pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled;
        else
            pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled;
        break;
    default:
        pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
    }

    pMgmt->Roam_dbm = param->u.wpa_associate.roam_dbm;
    if (pMgmt->eAuthenMode == WMAC_AUTH_SHAREKEY) { // @wep-sharekey
        pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
        pMgmt->bShareKeyAlgorithm = TRUE;
    } else if (pMgmt->eAuthenMode == WMAC_AUTH_OPEN) {
        if(bwepEnabled==TRUE) { //@open-wep
            pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
        } else {
            // @only open
            pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
        }
    }
    // mike save old encryption status
    pDevice->eOldEncryptionStatus = pDevice->eEncryptionStatus;

    if (pDevice->eEncryptionStatus !=  Ndis802_11EncryptionDisabled)
        pDevice->bEncryptionEnable = TRUE;
    else
        pDevice->bEncryptionEnable = FALSE;

    if ((pMgmt->eAuthenMode == WMAC_AUTH_SHAREKEY) ||
        ((pMgmt->eAuthenMode == WMAC_AUTH_OPEN) && (bwepEnabled==TRUE)))  {
        // mike re-comment:open-wep && sharekey-wep needn't do initial key!!
    } else {
        KeyvInitTable(pDevice,&pDevice->sKey);
    }

    spin_lock_irq(&pDevice->lock);
    pDevice->bLinkPass = FALSE;
    ControlvMaskByte(pDevice, MESSAGE_REQUEST_MACREG, MAC_REG_PAPEDELAY, LEDSTS_STS, LEDSTS_SLOW);
    memset(pMgmt->abyCurrBSSID, 0, 6);
    pMgmt->eCurrState = WMAC_STATE_IDLE;
    netif_stop_queue(pDevice->dev);

/******* search if ap_scan=2, which is associating request in hidden ssid mode ****/
    {
        PKnownBSS pCurr = NULL;
        pCurr = BSSpSearchBSSList(pDevice,
                    pMgmt->abyDesireBSSID,
                    pMgmt->abyDesireSSID,
                    pDevice->eConfigPHYMode
            );

        if (pCurr == NULL){
            printk("wpa_set_associate---->hidden mode site survey before associate.......\n");
            bScheduleCommand((void *)pDevice,
                    WLAN_CMD_BSSID_SCAN,
                    pMgmt->abyDesireSSID);
        }
    }
/****************************************************************/

    bScheduleCommand((void *)pDevice, WLAN_CMD_SSID, NULL);
    spin_unlock_irq(&pDevice->lock);

    return ret;
}

/*
 * Description:
 *      wpa_ioctl main function supported for wpa supplicant
 *
 * Parameters:
 *  In:
 *      pDevice   -
 *      iw_point  -
 *  Out:
 *
 * Return Value:
 *
 */
int wpa_ioctl(PSDevice pDevice, struct iw_point *p)
{
    struct viawget_wpa_param *param;
    int ret = 0;
    int wpa_ioctl = 0;

    if (p->length < sizeof(struct viawget_wpa_param) ||
        p->length > VIAWGET_WPA_MAX_BUF_SIZE || !p->pointer)
        return -EINVAL;

    param = kmalloc((int)p->length, GFP_KERNEL);
    if (param == NULL)
        return -ENOMEM;

    if (copy_from_user(param, p->pointer, p->length)) {
        ret = -EFAULT;
        goto out;
    }

    switch (param->cmd) {
    case VIAWGET_SET_WPA:
        ret = wpa_set_wpa(pDevice, param);
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_WPA \n");
        break;

    case VIAWGET_SET_KEY:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_KEY \n");
        spin_lock_irq(&pDevice->lock);
        ret = wpa_set_keys(pDevice, param, FALSE);
        spin_unlock_irq(&pDevice->lock);
        break;

    case VIAWGET_SET_SCAN:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_SCAN \n");
        ret = wpa_set_scan(pDevice, param);
        break;

    case VIAWGET_GET_SCAN:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_GET_SCAN\n");
        ret = wpa_get_scan(pDevice, param);
        wpa_ioctl = 1;
        break;

    case VIAWGET_GET_SSID:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_GET_SSID \n");
        ret = wpa_get_ssid(pDevice, param);
        wpa_ioctl = 1;
        break;

    case VIAWGET_GET_BSSID:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_GET_BSSID \n");
        ret = wpa_get_bssid(pDevice, param);
        wpa_ioctl = 1;
        break;

    case VIAWGET_SET_ASSOCIATE:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_ASSOCIATE \n");
        ret = wpa_set_associate(pDevice, param);
        break;

    case VIAWGET_SET_DISASSOCIATE:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_DISASSOCIATE \n");
        ret = wpa_set_disassociate(pDevice, param);
        break;

    case VIAWGET_SET_DROP_UNENCRYPT:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_DROP_UNENCRYPT \n");
        break;

    case VIAWGET_SET_DEAUTHENTICATE:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_SET_DEAUTHENTICATE \n");
        break;

    default:
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "wpa_ioctl: unknown cmd=%d\n",
            param->cmd);
        kfree(param);
        return -EOPNOTSUPP;
    }

    if ((ret == 0) && wpa_ioctl) {
        if (copy_to_user(p->pointer, param, p->length)) {
            ret = -EFAULT;
            goto out;
        }
    }

out:
    kfree(param);
    return ret;
}