wpactl.c 26.8 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
/*
 * 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: Oct. 20, 2003
 *
 * 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 "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_DEBUG;
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 deamon
 *
 * 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 deamon
 *
 * Parameters:
 *  In:
 *      pDevice             -
 *      val                 -
 *  Out:
 *
 * Return Value:
 *
 */

int wpa_set_wpadev(PSDevice pDevice, int val)
{
	if (val)
		return wpa_init_wpadev(pDevice);
	else
		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->pMgmt;
    unsigned long dwKeyIndex = 0;
    unsigned char abyKey[MAX_KEY_LEN];
    unsigned char abySeq[MAX_KEY_LEN];
    QWORD   KeyRSC;
//    NDIS_802_11_KEY_RSC KeyRSC;
    unsigned char byKeyDecMode = KEY_CTL_WEP;
	int ret = 0;
	int uu, ii;


	if (param->u.wpa_key.alg_name > WPA_ALG_CCMP ||
			param->u.wpa_key.key_len >= MAX_KEY_LEN ||
			param->u.wpa_key.seq_len >= MAX_KEY_LEN)
		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;
        KeyvRemoveAllWEPKey(&(pDevice->sKey), pDevice->PortOffset);
        for (uu=0; uu<MAX_KEY_TABLE; uu++) {
            MACvDisableKeyEntry(pDevice->PortOffset, uu);
        }
        return ret;
    }

    //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 {
	spin_unlock_irq(&pDevice->lock);
	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 = (unsigned long)(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 = (unsigned char)dwKeyIndex;
                pDevice->bTransmitKey = true;
		        dwKeyIndex |= (1 << 31);
            }
            KeybSetDefaultKey(&(pDevice->sKey),
                                dwKeyIndex & ~(BIT30 | USE_KEYRSC),
                                param->u.wpa_key.key_len,
                                NULL,
                                abyKey,
                                KEY_CTL_WEP,
                                pDevice->PortOffset,
                                pDevice->byLocalID);

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

	    //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 {
	   	spin_unlock_irq(&pDevice->lock);
	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));
	         //KeyRSC |= (abySeq[ii] << (ii * 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_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA - TKIP Key must be 256 bits\n"));
        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_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA - AES Key must be 128 bits\n"));
        return -EINVAL;
    }

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

        if ((KeybSetAllGroupKey(&(pDevice->sKey),
                            dwKeyIndex,
                            param->u.wpa_key.key_len,
                            (PQWORD) &(KeyRSC),
                            (unsigned char *)abyKey,
                            byKeyDecMode,
                            pDevice->PortOffset,
                            pDevice->byLocalID) == true) &&
            (KeybSetDefaultKey(&(pDevice->sKey),
                            dwKeyIndex,
                            param->u.wpa_key.key_len,
                            (PQWORD) &(KeyRSC),
                            (unsigned char *)abyKey,
                            byKeyDecMode,
                            pDevice->PortOffset,
                            pDevice->byLocalID) == true) ) {
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "GROUP Key Assign.\n");

        } else {
            //DBG_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA -KeybSetDefaultKey Fail.0\n"));
           // spin_unlock_irq(&pDevice->lock);
            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");
            //spin_unlock_irq(&pDevice->lock);
            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"));
            //spin_unlock_irq(&pDevice->lock);
            return -EINVAL;
        }
        if (KeybSetKey(&(pDevice->sKey),
                       &param->addr[0],
                       dwKeyIndex,
                       param->u.wpa_key.key_len,
                       (PQWORD) &(KeyRSC),
                       (unsigned char *)abyKey,
                        byKeyDecMode,
                        pDevice->PortOffset,
                        pDevice->byLocalID) == 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"));
                //spin_unlock_irq(&pDevice->lock);
                return -EINVAL;

            } else {
                // Save Key and configure just before associate/reassociate to BSSID
                // we do not implement now
                //spin_unlock_irq(&pDevice->lock);
                return -EINVAL;
            }
        }
    } // BSSID not 0xffffffffffff
    if ((ret == 0) && ((param->u.wpa_key.set_tx) != 0)) {
        pDevice->byKeyIndex = (unsigned char)param->u.wpa_key.key_index;
        pDevice->bTransmitKey = true;
    }
    pDevice->bEncryptionEnable = true;
    //spin_unlock_irq(&pDevice->lock);

/*
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " key=%x-%x-%x-%x-%x-xxxxx \n",
               pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[byKeyIndex][0],
               pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[byKeyIndex][1],
               pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[byKeyIndex][2],
               pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[byKeyIndex][3],
               pMgmt->sNodeDBTable[iNodeIndex].abyWepKey[byKeyIndex][4]
              );
*/

	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->pMgmt;
	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->pMgmt;
	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;

    spin_lock_irq(&pDevice->lock);
    BSSvClearBSSList((void *)pDevice, pDevice->bLinkPass);
    bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN, NULL);
    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->pMgmt;
	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->pMgmt;
	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->pMgmt;
    PWLAN_IE_SSID   pItemSSID;
    PKnownBSS pBSS;
	unsigned char *pBuf;
	int ret = 0;
	u16 count = 0;
	u16 ii, jj;
#if 1

    unsigned char *ptempBSS;



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

 // printk("bubble sort result:\n");

  //for (ii = 0; ii < MAX_BSS_NUM; ii++)

  //    printk("%d [%s]:RSSI=%d\n",ii,((PWLAN_IE_SSID)(pMgmt->sBSSList[ii].abySSID))->abySSID,

  //                                                                 pMgmt->sBSSList[ii].uRSSI);

 #endif

//******mike:bubble sort by stronger RSSI*****//




	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), (int)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;
            //scan_buf->caps = pBSS->wCapInfo;
            //scan_buf->qual =
            //scan_buf->noise =
            //scan_buf->level =
            //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 *)((unsigned char *)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->pMgmt;
    PWLAN_IE_SSID   pItemSSID;
    unsigned char abyNullAddr[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
    unsigned char 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);


	if (param->u.wpa_associate.wpa_ie_len) {
		if (!param->u.wpa_associate.wpa_ie)
			return -EINVAL;
		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 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);
	// set bssid
    if (memcmp(param->u.wpa_associate.bssid, &abyNullAddr[0], 6) != 0)
        memcpy(pMgmt->abyDesireBSSID, param->u.wpa_associate.bssid, 6);
else
{
   bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN, pItemSSID->abySSID);
}

    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;
	}

//DavidWang add for WPA_supplicant support open/share mode

      if (pMgmt->eAuthenMode == WMAC_AUTH_SHAREKEY) {
            pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
            //pMgmt->eAuthenMode = WMAC_AUTH_SHAREKEY;
            pMgmt->bShareKeyAlgorithm = true;
             }
     else if (pMgmt->eAuthenMode == WMAC_AUTH_OPEN) {
          if(!bWepEnabled)  pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
	else pDevice->eEncryptionStatus = Ndis802_11Encryption1Enabled;
            //pMgmt->eAuthenMode = WMAC_AUTH_OPEN;
            //pMgmt->bShareKeyAlgorithm = false; //20080717-06,<Modify> by chester//Fix Open mode, WEP encrytion
           }
//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))) )  //DavidWang  //20080717-06,<Modify> by chester//Not to initial WEP
    KeyvInitTable(&pDevice->sKey, pDevice->PortOffset);
    spin_lock_irq(&pDevice->lock);
    pDevice->bLinkPass = false;
    memset(pMgmt->abyCurrBSSID, 0, 6);
    pMgmt->eCurrState = WMAC_STATE_IDLE;
    netif_stop_queue(pDevice->dev);
	//20080701-02,<Add> by Mike Liu
/*******search if ap_scan=2 ,which is associating request in hidden ssid mode ****/
{
   PKnownBSS       pCurr = NULL;
    pCurr = BSSpSearchBSSList(pDevice,
                              pMgmt->abyDesireBSSID,
                              pMgmt->abyDesireSSID,
                              pMgmt->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, (int)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);
		return -EOPNOTSUPP;
		break;
	}

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

out:
	kfree(param);

	return ret;
}