/*
   * 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: 80211mgr.c
   *

   * Purpose: Handles the 802.11 management support functions

   *
   * Author: Lyndon Chen
   *
   * Date: May 8, 2002
   *
   * Functions:
   *      vMgrEncodeBeacon - Encode the Beacon frame
   *      vMgrDecodeBeacon - Decode the Beacon frame
   *      vMgrEncodeIBSSATIM - Encode the IBSS ATIM frame
   *      vMgrDecodeIBSSATIM - Decode the IBSS ATIM frame
   *      vMgrEncodeDisassociation - Encode the Disassociation frame
   *      vMgrDecodeDisassociation - Decode the Disassociation frame
   *      vMgrEncodeAssocRequest - Encode the Association request frame
   *      vMgrDecodeAssocRequest - Decode the Association request frame
   *      vMgrEncodeAssocResponse - Encode the Association response frame
   *      vMgrDecodeAssocResponse - Decode the Association response frame
   *      vMgrEncodeReAssocRequest - Encode the ReAssociation request frame
   *      vMgrDecodeReAssocRequest - Decode the ReAssociation request frame
   *      vMgrEncodeProbeRequest - Encode the Probe request frame
   *      vMgrDecodeProbeRequest - Decode the Probe request frame
   *      vMgrEncodeProbeResponse - Encode the Probe response frame
   *      vMgrDecodeProbeResponse - Decode the Probe response frame
   *      vMgrEncodeAuthen - Encode the Authentication frame
   *      vMgrDecodeAuthen - Decode the Authentication frame
   *      vMgrEncodeDeauthen - Encode the DeAuthentication frame
   *      vMgrDecodeDeauthen - Decode the DeAuthentication frame
   *      vMgrEncodeReassocResponse - Encode the Reassociation response frame
   *      vMgrDecodeReassocResponse - Decode the Reassociation response frame
   *
   * Revision History:
   *
   */

  #include "tmacro.h"

  #include "tether.h"

  #include "80211mgr.h"

  #include "80211hdr.h"

  #include "device.h"

  #include "wpa.h"

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

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

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

  /*---------------------  Export Variables  --------------------------*/

  /*---------------------  Export Functions  --------------------------*/

  /*+
   *
   * Routine Description:
   * Encode Beacon frame body offset
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeBeacon(

  	PWLAN_FR_BEACON  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pqwTimestamp = (__le64 *)

  				(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				 WLAN_BEACON_OFF_TS);
  	pFrame->pwBeaconInterval = (unsigned short *)
  				(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				 WLAN_BEACON_OFF_BCN_INT);
  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_BEACON_OFF_CAPINFO);

  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_BEACON_OFF_SSID;

  }
  
  /*+
   *
   * Routine Description:
   * Decode Beacon frame body offset
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeBeacon(

  	PWLAN_FR_BEACON  pFrame
  )

  {

  	PWLAN_IE        pItem;
  
  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pqwTimestamp = (__le64 *)

  				(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				 WLAN_BEACON_OFF_TS);
  	pFrame->pwBeaconInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_BEACON_OFF_BCN_INT);
  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_BEACON_OFF_CAPINFO);

  	/* Information elements */

  	pItem = (PWLAN_IE)((unsigned char *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))) +
  			    WLAN_BEACON_OFF_SSID);

  	while (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) {

  		switch (pItem->byElementID) {
  		case WLAN_EID_SSID:
  			if (pFrame->pSSID == NULL)
  				pFrame->pSSID = (PWLAN_IE_SSID)pItem;
  			break;
  		case WLAN_EID_SUPP_RATES:
  			if (pFrame->pSuppRates == NULL)
  				pFrame->pSuppRates = (PWLAN_IE_SUPP_RATES)pItem;
  			break;
  		case WLAN_EID_FH_PARMS:

  			/* pFrame->pFHParms = (PWLAN_IE_FH_PARMS)pItem; */

  			break;
  		case WLAN_EID_DS_PARMS:
  			if (pFrame->pDSParms == NULL)
  				pFrame->pDSParms = (PWLAN_IE_DS_PARMS)pItem;
  			break;
  		case WLAN_EID_CF_PARMS:
  			if (pFrame->pCFParms == NULL)
  				pFrame->pCFParms = (PWLAN_IE_CF_PARMS)pItem;
  			break;
  		case WLAN_EID_IBSS_PARMS:
  			if (pFrame->pIBSSParms == NULL)
  				pFrame->pIBSSParms = (PWLAN_IE_IBSS_PARMS)pItem;
  			break;
  		case WLAN_EID_TIM:
  			if (pFrame->pTIM == NULL)
  				pFrame->pTIM = (PWLAN_IE_TIM)pItem;
  			break;
  
  		case WLAN_EID_RSN:

  			if (pFrame->pRSN == NULL)

  				pFrame->pRSN = (PWLAN_IE_RSN)pItem;

  			break;
  		case WLAN_EID_RSN_WPA:
  			if (pFrame->pRSNWPA == NULL) {
  				if (WPAb_Is_RSN((PWLAN_IE_RSN_EXT)pItem) == true)

  					pFrame->pRSNWPA =
  						       (PWLAN_IE_RSN_EXT)pItem;

  			}
  			break;
  
  		case WLAN_EID_ERP:
  			if (pFrame->pERP == NULL)
  				pFrame->pERP = (PWLAN_IE_ERP)pItem;
  			break;
  		case WLAN_EID_EXTSUPP_RATES:
  			if (pFrame->pExtSuppRates == NULL)

  				pFrame->pExtSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;

  		case WLAN_EID_COUNTRY:      /* 7 */

  			if (pFrame->pIE_Country == NULL)
  				pFrame->pIE_Country = (PWLAN_IE_COUNTRY)pItem;
  			break;

  		case WLAN_EID_PWR_CONSTRAINT:   /* 32 */

  			if (pFrame->pIE_PowerConstraint == NULL)

  				pFrame->pIE_PowerConstraint =
  						      (PWLAN_IE_PW_CONST)pItem;

  			break;

  		case WLAN_EID_CH_SWITCH:    /* 37 */

  			if (pFrame->pIE_CHSW == NULL)
  				pFrame->pIE_CHSW = (PWLAN_IE_CH_SW)pItem;
  			break;

  		case WLAN_EID_QUIET:        /* 40 */

  			if (pFrame->pIE_Quiet == NULL)
  				pFrame->pIE_Quiet = (PWLAN_IE_QUIET)pItem;
  			break;
  
  		case WLAN_EID_IBSS_DFS:
  			if (pFrame->pIE_IBSSDFS == NULL)
  				pFrame->pIE_IBSSDFS = (PWLAN_IE_IBSS_DFS)pItem;
  			break;
  
  		default:

  			pr_debug("Unrecognized EID=%dd in beacon decode
  ",
  				 pItem->byElementID);

  			break;
  
  		}
  		pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 + pItem->len);
  	}

  }

  /*+
   *
   * Routine Description:
   *  Encode IBSS ATIM
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeIBSSATIM(

  	PWLAN_FR_IBSSATIM   pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;
  	pFrame->len = WLAN_HDR_ADDR3_LEN;

  }

  /*+
   *
   * Routine Description:
   *  Decode IBSS ATIM
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeIBSSATIM(

  	PWLAN_FR_IBSSATIM   pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  }

  /*+
   *
   * Routine Description:
   *  Encode Disassociation
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeDisassociation(

  	PWLAN_FR_DISASSOC  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwReason = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_DISASSOC_OFF_REASON);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_DISASSOC_OFF_REASON +
  		      sizeof(*(pFrame->pwReason));

  }

  /*+
   *
   * Routine Description:
   *  Decode Disassociation
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeDisassociation(

  	PWLAN_FR_DISASSOC  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwReason = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_DISASSOC_OFF_REASON);

  }
  
  /*+
   *
   * Routine Description:
   *  Encode Association Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeAssocRequest(

  	PWLAN_FR_ASSOCREQ  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_ASSOCREQ_OFF_CAP_INFO);
  	pFrame->pwListenInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_ASSOCREQ_OFF_LISTEN_INT);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_ASSOCREQ_OFF_LISTEN_INT +
  		      sizeof(*(pFrame->pwListenInterval));

  }

  /*+
   *
   * Routine Description: (AP)
   *  Decode Association Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeAssocRequest(

  	PWLAN_FR_ASSOCREQ  pFrame
  )

  {

  	PWLAN_IE   pItem;
  
  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_ASSOCREQ_OFF_CAP_INFO);
  	pFrame->pwListenInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_ASSOCREQ_OFF_LISTEN_INT);

  	/* Information elements */

  	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
  			   + WLAN_ASSOCREQ_OFF_SSID);
  
  	while (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) {
  		switch (pItem->byElementID) {
  		case WLAN_EID_SSID:
  			if (pFrame->pSSID == NULL)
  				pFrame->pSSID = (PWLAN_IE_SSID)pItem;
  			break;
  		case WLAN_EID_SUPP_RATES:
  			if (pFrame->pSuppRates == NULL)

  				pFrame->pSuppRates =
  						   (PWLAN_IE_SUPP_RATES)pItem;

  			break;
  
  		case WLAN_EID_RSN:

  			if (pFrame->pRSN == NULL)

  				pFrame->pRSN = (PWLAN_IE_RSN)pItem;

  			break;
  		case WLAN_EID_RSN_WPA:
  			if (pFrame->pRSNWPA == NULL) {
  				if (WPAb_Is_RSN((PWLAN_IE_RSN_EXT)pItem) == true)

  					pFrame->pRSNWPA =
  						       (PWLAN_IE_RSN_EXT)pItem;

  			}
  			break;
  		case WLAN_EID_EXTSUPP_RATES:
  			if (pFrame->pExtSuppRates == NULL)

  				pFrame->pExtSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;
  
  		default:

  			pr_debug("Unrecognized EID=%dd in assocreq decode
  ",
  				 pItem->byElementID);

  			break;
  		}
  		pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 + pItem->len);
  	}

  }
  
  /*+
   *
   * Routine Description: (AP)
   *  Encode Association Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeAssocResponse(

  	PWLAN_FR_ASSOCRESP  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_ASSOCRESP_OFF_CAP_INFO);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_ASSOCRESP_OFF_STATUS);
  	pFrame->pwAid = (unsigned short *)
  			(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			 WLAN_ASSOCRESP_OFF_AID);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_ASSOCRESP_OFF_AID +
  		      sizeof(*(pFrame->pwAid));

  }

  /*+
   *
   * Routine Description:
   *  Decode Association Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeAssocResponse(

  	PWLAN_FR_ASSOCRESP  pFrame
  )

  {

  	PWLAN_IE   pItem;
  
  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_ASSOCRESP_OFF_CAP_INFO);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_ASSOCRESP_OFF_STATUS);
  	pFrame->pwAid = (unsigned short *)
  			(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			 WLAN_ASSOCRESP_OFF_AID);

  	/* Information elements */

  	pFrame->pSuppRates  = (PWLAN_IE_SUPP_RATES)
  			      (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			       WLAN_ASSOCRESP_OFF_SUPP_RATES);

  
  	pItem = (PWLAN_IE)(pFrame->pSuppRates);
  	pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 + pItem->len);
  
  	if ((((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) &&
  	    (pItem->byElementID == WLAN_EID_EXTSUPP_RATES)) {
  		pFrame->pExtSuppRates = (PWLAN_IE_SUPP_RATES)pItem;

  		pr_debug("pFrame->pExtSuppRates=[%p]
  ", pItem);

  	} else {

  		pFrame->pExtSuppRates = NULL;
  	}

  }

  /*+
   *
   * Routine Description:
   *  Encode Reassociation Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeReassocRequest(

  	PWLAN_FR_REASSOCREQ  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_REASSOCREQ_OFF_CAP_INFO);
  	pFrame->pwListenInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_REASSOCREQ_OFF_LISTEN_INT);
  	pFrame->pAddrCurrAP = (PIEEE_ADDR)
  			      (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			       WLAN_REASSOCREQ_OFF_CURR_AP);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_REASSOCREQ_OFF_CURR_AP +
  		      sizeof(*(pFrame->pAddrCurrAP));

  }

  /*+
   *
   * Routine Description: (AP)
   *  Decode Reassociation Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeReassocRequest(

  	PWLAN_FR_REASSOCREQ  pFrame
  )

  {

  	PWLAN_IE   pItem;

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_REASSOCREQ_OFF_CAP_INFO);
  	pFrame->pwListenInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_REASSOCREQ_OFF_LISTEN_INT);
  	pFrame->pAddrCurrAP = (PIEEE_ADDR)
  			      (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			       WLAN_REASSOCREQ_OFF_CURR_AP);

  	/* Information elements */

  	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
  			   + WLAN_REASSOCREQ_OFF_SSID);
  
  	while (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) {

  		switch (pItem->byElementID) {
  		case WLAN_EID_SSID:
  			if (pFrame->pSSID == NULL)
  				pFrame->pSSID = (PWLAN_IE_SSID)pItem;
  			break;
  		case WLAN_EID_SUPP_RATES:
  			if (pFrame->pSuppRates == NULL)

  				pFrame->pSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;
  
  		case WLAN_EID_RSN:

  			if (pFrame->pRSN == NULL)

  				pFrame->pRSN = (PWLAN_IE_RSN)pItem;

  			break;
  		case WLAN_EID_RSN_WPA:
  			if (pFrame->pRSNWPA == NULL) {
  				if (WPAb_Is_RSN((PWLAN_IE_RSN_EXT)pItem) == true)

  					pFrame->pRSNWPA =
  						       (PWLAN_IE_RSN_EXT)pItem;

  			}
  			break;
  
  		case WLAN_EID_EXTSUPP_RATES:
  			if (pFrame->pExtSuppRates == NULL)

  				pFrame->pExtSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;
  		default:

  			pr_debug("Unrecognized EID=%dd in reassocreq decode
  ",
  				 pItem->byElementID);

  			break;
  		}
  		pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 + pItem->len);
  	}

  }

  /*+
   *
   * Routine Description:
   *  Encode Probe Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeProbeRequest(

  	PWLAN_FR_PROBEREQ  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;
  	pFrame->len = WLAN_HDR_ADDR3_LEN;

  }
  
  /*+
   *
   * Routine Description:
   *  Decode Probe Request
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeProbeRequest(

  	PWLAN_FR_PROBEREQ  pFrame
  )

  {

  	PWLAN_IE   pItem;

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Information elements */

  	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)));

  	while (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) {

  		switch (pItem->byElementID) {
  		case WLAN_EID_SSID:
  			if (pFrame->pSSID == NULL)
  				pFrame->pSSID = (PWLAN_IE_SSID)pItem;
  			break;

  		case WLAN_EID_SUPP_RATES:
  			if (pFrame->pSuppRates == NULL)

  				pFrame->pSuppRates =
  						   (PWLAN_IE_SUPP_RATES)pItem;

  			break;

  		case WLAN_EID_EXTSUPP_RATES:
  			if (pFrame->pExtSuppRates == NULL)

  				pFrame->pExtSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;

  		default:

  			pr_debug("Bad EID=%dd in probereq
  ",
  				 pItem->byElementID);

  			break;
  		}

  		pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 +  pItem->len);
  	}

  }

  /*+
   *
   * Routine Description:
   *  Encode Probe Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeProbeResponse(

  	PWLAN_FR_PROBERESP  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pqwTimestamp = (__le64 *)

  			       (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				WLAN_PROBERESP_OFF_TS);
  	pFrame->pwBeaconInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_PROBERESP_OFF_BCN_INT);
  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_PROBERESP_OFF_CAP_INFO);

  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_PROBERESP_OFF_CAP_INFO +

  		      sizeof(*(pFrame->pwCapInfo));

  }

  /*+
   *
   * Routine Description:
   *  Decode Probe Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeProbeResponse(

  	PWLAN_FR_PROBERESP  pFrame
  )

  {

  	PWLAN_IE    pItem;

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pqwTimestamp = (__le64 *)

  			       (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				WLAN_PROBERESP_OFF_TS);
  	pFrame->pwBeaconInterval = (unsigned short *)
  				   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				    WLAN_PROBERESP_OFF_BCN_INT);
  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_PROBERESP_OFF_CAP_INFO);

  	/* Information elements */

  	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
  			   + WLAN_PROBERESP_OFF_SSID);
  
  	while (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) {
  		switch (pItem->byElementID) {
  		case WLAN_EID_SSID:
  			if (pFrame->pSSID == NULL)
  				pFrame->pSSID = (PWLAN_IE_SSID)pItem;
  			break;
  		case WLAN_EID_SUPP_RATES:
  			if (pFrame->pSuppRates == NULL)

  				pFrame->pSuppRates =
  						   (PWLAN_IE_SUPP_RATES)pItem;

  			break;
  		case WLAN_EID_FH_PARMS:
  			break;
  		case WLAN_EID_DS_PARMS:
  			if (pFrame->pDSParms == NULL)
  				pFrame->pDSParms = (PWLAN_IE_DS_PARMS)pItem;
  			break;
  		case WLAN_EID_CF_PARMS:
  			if (pFrame->pCFParms == NULL)
  				pFrame->pCFParms = (PWLAN_IE_CF_PARMS)pItem;
  			break;
  		case WLAN_EID_IBSS_PARMS:
  			if (pFrame->pIBSSParms == NULL)

  				pFrame->pIBSSParms =
  						   (PWLAN_IE_IBSS_PARMS)pItem;

  			break;
  
  		case WLAN_EID_RSN:

  			if (pFrame->pRSN == NULL)

  				pFrame->pRSN = (PWLAN_IE_RSN)pItem;

  			break;
  		case WLAN_EID_RSN_WPA:
  			if (pFrame->pRSNWPA == NULL) {
  				if (WPAb_Is_RSN((PWLAN_IE_RSN_EXT)pItem) == true)

  					pFrame->pRSNWPA =
  						       (PWLAN_IE_RSN_EXT)pItem;

  			}
  			break;
  		case WLAN_EID_ERP:
  			if (pFrame->pERP == NULL)
  				pFrame->pERP = (PWLAN_IE_ERP)pItem;
  			break;
  		case WLAN_EID_EXTSUPP_RATES:
  			if (pFrame->pExtSuppRates == NULL)

  				pFrame->pExtSuppRates =
  						    (PWLAN_IE_SUPP_RATES)pItem;

  			break;

  		case WLAN_EID_COUNTRY:      /* 7 */

  			if (pFrame->pIE_Country == NULL)
  				pFrame->pIE_Country = (PWLAN_IE_COUNTRY)pItem;
  			break;

  		case WLAN_EID_PWR_CONSTRAINT:   /* 32 */

  			if (pFrame->pIE_PowerConstraint == NULL)

  				pFrame->pIE_PowerConstraint =
  						      (PWLAN_IE_PW_CONST)pItem;

  			break;

  		case WLAN_EID_CH_SWITCH:    /* 37 */

  			if (pFrame->pIE_CHSW == NULL)
  				pFrame->pIE_CHSW = (PWLAN_IE_CH_SW)pItem;
  			break;

  		case WLAN_EID_QUIET:        /* 40 */

  			if (pFrame->pIE_Quiet == NULL)
  				pFrame->pIE_Quiet = (PWLAN_IE_QUIET)pItem;
  			break;
  
  		case WLAN_EID_IBSS_DFS:
  			if (pFrame->pIE_IBSSDFS == NULL)
  				pFrame->pIE_IBSSDFS = (PWLAN_IE_IBSS_DFS)pItem;
  			break;
  
  		default:

  			pr_debug("Bad EID=%dd in proberesp
  ",
  				 pItem->byElementID);

  			break;
  		}
  
  		pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 +  pItem->len);
  	}

  }

  /*+
   *
   * Routine Description:
   *     Encode Authentication frame
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeAuthen(

  	PWLAN_FR_AUTHEN  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwAuthAlgorithm = (unsigned short *)
  				  (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				   WLAN_AUTHEN_OFF_AUTH_ALG);
  	pFrame->pwAuthSequence = (unsigned short *)
  				 (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				  WLAN_AUTHEN_OFF_AUTH_SEQ);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_AUTHEN_OFF_STATUS);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_AUTHEN_OFF_STATUS +
  		      sizeof(*(pFrame->pwStatus));

  }

  /*+
   *
   * Routine Description:
   *   Decode Authentication
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeAuthen(

  	PWLAN_FR_AUTHEN  pFrame
  )

  {

  	PWLAN_IE    pItem;

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwAuthAlgorithm = (unsigned short *)
  				  (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				   WLAN_AUTHEN_OFF_AUTH_ALG);
  	pFrame->pwAuthSequence = (unsigned short *)
  				 (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  				  WLAN_AUTHEN_OFF_AUTH_SEQ);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_AUTHEN_OFF_STATUS);

  	/* Information elements */

  	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
  			   + WLAN_AUTHEN_OFF_CHALLENGE);

  	if (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len) &&
  	    pItem->byElementID == WLAN_EID_CHALLENGE)

  		pFrame->pChallenge = (PWLAN_IE_CHALLENGE)pItem;

  }

  /*+
   *
   * Routine Description:
   *   Encode Authentication
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeDeauthen(

  	PWLAN_FR_DEAUTHEN  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwReason = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_DEAUTHEN_OFF_REASON);
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_DEAUTHEN_OFF_REASON +
  		      sizeof(*(pFrame->pwReason));

  }

  /*+
   *
   * Routine Description:
   *   Decode Deauthentication
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeDeauthen(

  	PWLAN_FR_DEAUTHEN  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwReason = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_DEAUTHEN_OFF_REASON);

  }

  /*+
   *
   * Routine Description: (AP)
   *   Encode Reassociation Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrEncodeReassocResponse(

  	PWLAN_FR_REASSOCRESP  pFrame
  )

  {

  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_REASSOCRESP_OFF_CAP_INFO);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_REASSOCRESP_OFF_STATUS);
  	pFrame->pwAid = (unsigned short *)
  			(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			 WLAN_REASSOCRESP_OFF_AID);
  
  	pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_REASSOCRESP_OFF_AID +
  		      sizeof(*(pFrame->pwAid));

  }

  /*+
   *
   * Routine Description:
   *   Decode Reassociation Response
   *
   *
   * Return Value:
   *    None.
   *

   -*/

  void

  vMgrDecodeReassocResponse(

  	PWLAN_FR_REASSOCRESP  pFrame
  )

  {

  	PWLAN_IE   pItem;
  
  	pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;

  	/* Fixed Fields */

  	pFrame->pwCapInfo = (unsigned short *)
  			    (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			     WLAN_REASSOCRESP_OFF_CAP_INFO);
  	pFrame->pwStatus = (unsigned short *)
  			   (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			    WLAN_REASSOCRESP_OFF_STATUS);
  	pFrame->pwAid = (unsigned short *)
  			(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			 WLAN_REASSOCRESP_OFF_AID);

  	/* Information elements */

  	pFrame->pSuppRates = (PWLAN_IE_SUPP_RATES)
  			     (WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3)) +
  			      WLAN_REASSOCRESP_OFF_SUPP_RATES);

  
  	pItem = (PWLAN_IE)(pFrame->pSuppRates);
  	pItem = (PWLAN_IE)(((unsigned char *)pItem) + 2 + pItem->len);
  
  	if ((((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) &&
  	    (pItem->byElementID == WLAN_EID_EXTSUPP_RATES)) {
  		pFrame->pExtSuppRates = (PWLAN_IE_SUPP_RATES)pItem;
  	}

  }