CORE/MAC/src/pe/lim/limProcessMessageQueue.c

/*
 * Copyright (c) 2012-2015 The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all
 * copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * This file was originally distributed by Qualcomm Atheros, Inc.
 * under proprietary terms before Copyright ownership was assigned
 * to the Linux Foundation.
 */




/*
 * This file lim ProcessMessageQueue.cc contains the code
 * for processing LIM message Queue.
 * Author:        Chandra Modumudi
 * Date:          02/11/02
 * History:-
 * Date           Modified by    Modification Information
 * --------------------------------------------------------------------
 *
 */
#include "palTypes.h"
#include "wniApi.h"
#include "wlan_qct_wdi_ds.h"
#include "wlan_qct_pal_packet.h"
#include "wlan_qct_wda.h"

#include "wniCfg.h"
#include "cfgApi.h"
#include "sirCommon.h"
#include "utilsApi.h"
#include "limTypes.h"
#include "limUtils.h"
#include "limAssocUtils.h"
#include "limPropExtsUtils.h"

#include "limAdmitControl.h"
#include "pmmApi.h"
#include "limIbssPeerMgmt.h"
#include "schApi.h"
#include "limSession.h"
#include "limSendMessages.h"

#if defined WLAN_FEATURE_VOWIFI
#include "rrmApi.h"
#endif
#if defined(FEATURE_WLAN_ESE) && !defined(FEATURE_WLAN_ESE_UPLOAD)
#include "eseApi.h"
#endif

#if defined WLAN_FEATURE_VOWIFI_11R
#include "limFT.h"
#endif

#ifdef WMM_APSD
#include "wmmApsd.h"
#endif

#include "vos_types.h"
#include "vos_packet.h"
#include "vos_memory.h"

/* This value corresponds to 500 ms */
#define MAX_PROBEREQ_TIME 5000

#ifdef WLAN_FEATURE_EXTSCAN
#define  SIZE_OF_FIXED_PARAM 12
#endif

void limLogSessionStates(tpAniSirGlobal pMac);

/** -------------------------------------------------------------
\fn defMsgDecision
\brief The function decides whether to defer a message or not in limProcessMessage function
\param   tpAniSirGlobal pMac
\param       tSirMsgQ  limMsg
\param       tSirMacTspecIE   *ppInfo
\return none
  -------------------------------------------------------------*/

tANI_U8 static
defMsgDecision(tpAniSirGlobal pMac, tpSirMsgQ  limMsg)
{


/* this function should not changed */
  if(pMac->lim.gLimSmeState == eLIM_SME_OFFLINE_STATE)
  {
      // Defer processsing this message
      if (limDeferMsg(pMac, limMsg) != TX_SUCCESS)
      {
          PELOGW(limLog(pMac, LOGW, FL("Unable to Defer message(0x%X) %s limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                   limMsg->type, limMsgStr(limMsg->type), pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                   pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
          limLogSessionStates(pMac);
          limHandleDeferMsgError(pMac, limMsg);
      }
      return true;
  }

  //When defer is requested then defer all the messages except HAL responses.
  if((!limIsSystemInScanState(pMac)) && (true != GET_LIM_PROCESS_DEFD_MESGS(pMac)) &&
      !pMac->lim.gLimSystemInScanLearnMode)
  {
      if((limMsg->type != WDA_ADD_BSS_RSP) &&
        (limMsg->type != WDA_DELETE_BSS_RSP) &&
        (limMsg->type != WDA_ADD_STA_RSP) &&
        (limMsg->type != WDA_ADD_STA_SELF_RSP) &&
        (limMsg->type != WDA_DEL_STA_SELF_RSP) &&
        (limMsg->type != WDA_DELETE_STA_RSP)&&
        (limMsg->type != WDA_SET_BSSKEY_RSP)&&
        (limMsg->type != WDA_SET_STAKEY_RSP)&&
        (limMsg->type != WDA_SET_STA_BCASTKEY_RSP) &&
        (limMsg->type != eWNI_SME_START_REQ) &&
        (limMsg->type != WDA_AGGR_QOS_RSP) &&
        (limMsg->type != WDA_REMOVE_BSSKEY_RSP) &&
        (limMsg->type != WDA_REMOVE_STAKEY_RSP) &&
        (limMsg->type != WDA_SET_MIMOPS_RSP)&&
        (limMsg->type != WDA_ADDBA_RSP) &&
        (limMsg->type != WDA_ENTER_BMPS_RSP) &&
        (limMsg->type != WDA_EXIT_BMPS_RSP) &&
        (limMsg->type != WDA_ENTER_IMPS_RSP) &&
        (limMsg->type != WDA_EXIT_IMPS_RSP) &&
        (limMsg->type != WDA_ENTER_UAPSD_RSP) &&
        (limMsg->type != WDA_EXIT_UAPSD_RSP) &&
        (limMsg->type != WDA_WOWL_ENTER_RSP) &&
        (limMsg->type != WDA_WOWL_EXIT_RSP) &&
        (limMsg->type != WDA_SWITCH_CHANNEL_RSP) &&
        (limMsg->type != WDA_P2P_NOA_ATTR_IND) &&
        (limMsg->type != WDA_P2P_NOA_START_IND) &&
#ifdef FEATURE_OEM_DATA_SUPPORT
        (limMsg->type != WDA_START_OEM_DATA_RSP) &&
#endif
        (limMsg->type != WDA_ADD_TS_RSP))
    {
        PELOG1(limLog(pMac, LOG1, FL("Defer the current message %s , gLimProcessDefdMsgs is false and system is not in scan/learn mode"),
               limMsgStr(limMsg->type));)

        // Defer processsing this message
        if (limDeferMsg(pMac, limMsg) != TX_SUCCESS)
        {
            PELOGW(limLog(pMac, LOGW, FL("Unable to Defer message(0x%X) %s limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                   limMsg->type, limMsgStr(limMsg->type), pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                   pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
            limLogSessionStates(pMac);
            limHandleDeferMsgError(pMac, limMsg);

        }
        return true;
    }
  }
  return false;
}

/*
* Beacon Handling Cases:
* during scanning, when no session is active:
*    handled by limHandleFramesInScanState before __limHandleBeacon call is invoked.
* during scanning, when any session is active, but beacon/Pr does not belong to that session, psessionEntry will be null.
*    handled by limHandleFramesInScanState before __limHandleBeacon call is invoked.
* during scanning, when any session is active, and beacon/Pr belongs to one of the session, psessionEntry will not be null.
*    handled by limHandleFramesInScanState before __limHandleBeacon call is invoked.
* Not scanning, no session:
*    there should not be any beacon coming, if coming, should be dropped.
* Not Scanning, 
*/
static void
__limHandleBeacon(tpAniSirGlobal pMac, tpSirMsgQ pMsg, tpPESession psessionEntry)
{
    /* checking for global SME state...*/
    tANI_U8 *pRxPacketInfo;
    limGetBDfromRxPacket(pMac, pMsg->bodyptr, (tANI_U32 **)&pRxPacketInfo);

    //This function should not be called if beacon is received in scan state.
    //So not doing any checks for the global state.

    if(psessionEntry == NULL)
    {
        schBeaconProcess(pMac, pRxPacketInfo, NULL);
    }
    else if( (psessionEntry->limSmeState == eLIM_SME_LINK_EST_STATE) ||
                (psessionEntry->limSmeState == eLIM_SME_NORMAL_STATE))
    {
        schBeaconProcess(pMac, pRxPacketInfo, psessionEntry);
    }
     else
        limProcessBeaconFrame(pMac, pRxPacketInfo, psessionEntry);

        return;
}


//Fucntion prototype
void limProcessNormalHddMsg(tpAniSirGlobal pMac, tSirMsgQ *pLimMsg, tANI_U8 fRspReqd);

/**
 * limDeferMsg()
 *
 *FUNCTION:
 * This function is called to defer the messages received
 * during Learn mode
 *
 *LOGIC:
 * NA
 *
 *ASSUMPTIONS:
 * NA
 *
 *NOTE:
 * NA
 *
 * @param  pMac - Pointer to Global MAC structure
 * @param  pMsg of type tSirMsgQ - Pointer to the message structure
 * @return None
 */

tANI_U32
limDeferMsg(tpAniSirGlobal pMac, tSirMsgQ *pMsg)
{
    tANI_U32 retCode = TX_SUCCESS;

    retCode = limWriteDeferredMsgQ(pMac, pMsg);

    if (retCode == TX_SUCCESS)
    {
        limLog(pMac, LOG1,
               FL("Deferred message(0x%X) limSmeState %d (prev sme state %d)"
                  " sysRole %d mlm state %d (prev mlm state %d)"),
               pMsg->type, pMac->lim.gLimSmeState, pMac->lim.gLimPrevSmeState,
               pMac->lim.gLimSystemRole, pMac->lim.gLimMlmState,
               pMac->lim.gLimPrevMlmState);
        MTRACE(macTraceMsgRx(pMac, NO_SESSION, LIM_TRACE_MAKE_RXMSG(pMsg->type, LIM_MSG_DEFERRED));)
    }
    else
    {
        limLog(pMac, LOG1, FL("Dropped lim message (0x%X)"), pMsg->type);
        MTRACE(macTraceMsgRx(pMac, NO_SESSION, LIM_TRACE_MAKE_RXMSG(pMsg->type, LIM_MSG_DROPPED));)
    }

    return retCode;
} /*** end limDeferMsg() ***/



/**
 * limHandleFramesInScanState()
 *
 *FUNCTION:
 * This function is called to process 802.11 frames
 * received by LIM in scan state.
 *
 *LOGIC:
 * NA
 *
 *ASSUMPTIONS:
 * NA
 *
 *NOTE:
 * NA
 *
 * @param  pMac    - Pointer to Global MAC structure
 * @param  limMsg  - Received message
 * @param  pRxPacketInfo - Pointer to Rx packet info structure
 * @param  deferMsg - Indicates whether the frame shall be deferred
 * @return None
 */

static void
limHandleFramesInScanState(tpAniSirGlobal pMac, tpSirMsgQ limMsg, tANI_U8 *pRxPacketInfo, tANI_U8 *deferMsg, tpPESession psessionEntry)
{
    tSirMacFrameCtl  fc;
    tpSirMacMgmtHdr  pHdr;

    *deferMsg = false;
    pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
    fc = pHdr->fc;
    limLog( pMac, LOG2, FL("ProtVersion %d, Type %d, Subtype %d"),
            fc.protVer, fc.type, fc.subType );

    // defer all message in scan state except for Beacons and Probe Response
    if ((fc.type == SIR_MAC_MGMT_FRAME) && (fc.subType == SIR_MAC_MGMT_BEACON))
    {
        if (psessionEntry == NULL)
            limProcessBeaconFrameNoSession(pMac, pRxPacketInfo);
        else 
            limProcessBeaconFrame(pMac, pRxPacketInfo,psessionEntry);
    }
    else if ((fc.type == SIR_MAC_MGMT_FRAME) && (fc.subType == SIR_MAC_MGMT_PROBE_RSP))
    {
        if (psessionEntry == NULL)
            limProcessProbeRspFrameNoSession(pMac, pRxPacketInfo);
        else
            limProcessProbeRspFrame(pMac, pRxPacketInfo,psessionEntry);
    }
    else if ((fc.type == SIR_MAC_MGMT_FRAME) && (fc.subType == SIR_MAC_MGMT_PROBE_REQ))
    {
      limProcessProbeReqFrame_multiple_BSS(pMac, pRxPacketInfo, psessionEntry);
    }
    else if ((fc.type == SIR_MAC_MGMT_FRAME) && (fc.subType == SIR_MAC_MGMT_ACTION))
    {
       limProcessActionFrameNoSession( pMac, pRxPacketInfo);
    }
    else
    {
        *deferMsg = true;
        return; 
    }
 
    limPktFree(pMac, HAL_TXRX_FRM_802_11_MGMT, pRxPacketInfo, (void *) limMsg->bodyptr);
    return;

} /*** end limHandleFramesInScanState() ***/

/** ------------------------------------------------------------
\brief    This function handles Unknown Unicast (A2 Index)
\         packets.
\param    tpAniSirGlobal pMac Global Mac data structure
\param    void *pRxPacketInfo Pointer to Buffer Descriptor
\return   none
\
\ -------------------------------------------------------------- */
static void limHandleUnknownA2IndexFrames(tpAniSirGlobal pMac, void *pRxPacketInfo,tpPESession psessionEntry)
{
      /* addr2 mismatch interrupt occurred this means previous 
       disassociation was not successful
       In Volans pRxPacketInfo only contains pointer 48-bit address2 field */
       /*Send disassociation message again*/
       //Dinesh need one more arguement. 
       //limSendDisassocMgmtFrame(pMac, eSIR_MAC_CLASS3_FRAME_FROM_NON_ASSOC_STA_REASON,(tANI_U8 *) pRxPacketInfo);
    //TODO: verify this   
    //This could be a public action frame.
    if( psessionEntry->limSystemRole == eLIM_P2P_DEVICE_ROLE )
        limProcessActionFrameNoSession(pMac, (tANI_U8 *) pRxPacketInfo);

#ifdef FEATURE_WLAN_TDLS
    {
        tpSirMacDataHdr3a pMacHdr;
        pMacHdr = WDA_GET_RX_MPDUHEADER3A(pRxPacketInfo);

        if (limIsGroupAddr(pMacHdr->addr2))
        {
            limLog(pMac, LOG1, FL("Ignoring A2 Invalid Packet received for MC/BC:"));
                    limPrintMacAddr(pMac, pMacHdr->addr2, LOG1);

                return;
        }
        /* TDLS_hklee: move down here to reject Addr2 == Group (first checking above)
           and also checking if SystemRole == STA */
        if (psessionEntry->limSystemRole == eLIM_STA_ROLE)
        {
            /* ADD handling of Public Action Frame */
            LIM_LOG_TDLS(VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_ERROR, \
                        ("limHandleUnknownA2IndexFrames: type=0x%x, subtype=0x%x"),pMacHdr->fc.type, pMacHdr->fc.subType));
            switch (pMacHdr->fc.type)
            {
                case SIR_MAC_MGMT_FRAME:
                    {
                        switch (pMacHdr->fc.subType)
                        {
                            case SIR_MAC_MGMT_ACTION:
                                {
                                    limProcessActionFrame(pMac, pRxPacketInfo, psessionEntry) ;
                                    break ;
                                }
                            default:
                                {
                                    break ;
                                }
                        }
                    }
                default:
                    {
                        break ;
                    }
            }
        }
    }
#endif


    return;
}

/**
 * limCheckMgmtRegisteredFrames()
 *
 *FUNCTION:
 * This function is called to process to check if received frame match with 
 * any of the registered frame from HDD. If yes pass this frame to SME.
 *
 *LOGIC:
 *
 *ASSUMPTIONS:
 *
 *NOTE:
 *
 * @param  pMac      Pointer to Global MAC structure
 * @param  *pBd     Pointer to the received Buffer Descriptor+payload
 * @param  *psessionEntry Pointer to session on which packet is received
 * @return None
 */
static tANI_BOOLEAN
limCheckMgmtRegisteredFrames(tpAniSirGlobal pMac, tANI_U8 *pBd,
                                        tpPESession psessionEntry)
{
    tSirMacFrameCtl  fc;
    tpSirMacMgmtHdr  pHdr;
    tANI_U8          *pBody;
    tpLimMgmtFrameRegistration pLimMgmtRegistration = NULL, pNext = NULL;
    tANI_U16 frameType;
    tANI_U16 framelen;
    tANI_U8 type,subType;
    tANI_BOOLEAN match = VOS_FALSE;
    VOS_STATUS vosStatus;

    pHdr = WDA_GET_RX_MAC_HEADER(pBd);
    fc = pHdr->fc;
    frameType = (fc.type << 2 ) | (fc.subType << 4);
    pBody = WDA_GET_RX_MPDU_DATA(pBd);
    framelen = WDA_GET_RX_PAYLOAD_LEN(pBd);

    vos_list_peek_front(&pMac->lim.gLimMgmtFrameRegistratinQueue,
                        (vos_list_node_t**)&pLimMgmtRegistration);

    while(pLimMgmtRegistration != NULL)
    {
        type = (pLimMgmtRegistration->frameType >> 2) & 0x03;
        subType = (pLimMgmtRegistration->frameType >> 4) & 0x0f;
        if ( (type == SIR_MAC_MGMT_FRAME) && (fc.type == SIR_MAC_MGMT_FRAME)
              && (subType == SIR_MAC_MGMT_RESERVED15) )
        {
            limLog( pMac, LOG3, 
                FL("rcvd frame match with SIR_MAC_MGMT_RESERVED15"));
            match = VOS_TRUE;
            break;
        }

        if (pLimMgmtRegistration->frameType == frameType)
        { 
            if (pLimMgmtRegistration->matchLen > 0)
            {   
                if (pLimMgmtRegistration->matchLen <= framelen)
                {
                    if (vos_mem_compare(pLimMgmtRegistration->matchData,
                                       pBody, pLimMgmtRegistration->matchLen))
                    {
                         /* found match! */
                         match = VOS_TRUE;
                         break;
                    }
                }
            }
            else
            {
                /* found match! */   
                match = VOS_TRUE;
                break;
            }
        }
             
        vosStatus = 
          vos_list_peek_next ( &pMac->lim.gLimMgmtFrameRegistratinQueue, 
                              (vos_list_node_t*) pLimMgmtRegistration, 
                              (vos_list_node_t**) &pNext );
        pLimMgmtRegistration = pNext;
        pNext = NULL;
    }
   
    if (match)
    {
        limLog( pMac, LOG1, 
                FL("rcvd frame match with registered frame params"));

        /* Indicate this to SME */
        limSendSmeMgmtFrameInd( pMac, pLimMgmtRegistration->sessionId,
                                pBd, psessionEntry, 0);
    
        if ( (type == SIR_MAC_MGMT_FRAME) && (fc.type == SIR_MAC_MGMT_FRAME)
              && (subType == SIR_MAC_MGMT_RESERVED15) )
        {
            // These packets needs to be processed by PE/SME as well as HDD.
            // If it returns TRUE here, the packet is forwarded to HDD only.
            match = VOS_FALSE;
        }
    }

    return match;
} /*** end  limCheckMgmtRegisteredFrames() ***/

#ifdef WLAN_FEATURE_EXTSCAN

void
limProcessEXTScanRealTimeData(tpAniSirGlobal pMac, tANI_U8 *pRxPacketInfo)
{
    tpSirMacMgmtHdr       pHdr = NULL;
    eHalStatus            status;
    void                  *pCallbackContext;
    tANI_U8               rfBand = 0;
    tANI_U8               rxChannelInBD = 0;
    tSirMacFrameCtl       fc;
    tDot11fBeacon         *pBeacon = NULL;
    tDot11fProbeResponse  *pProbeResponse = NULL;
    tSirWifiFullScanResultEvent tEXTScanFullScanResult;

    pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
    fc = pHdr->fc;

    limLog(pMac, LOG2,
             FL("Received EXTScan Real Time data with length=%d from "),
             WDA_GET_RX_MPDU_LEN(pRxPacketInfo));

    limPrintMacAddr(pMac, pHdr->sa, LOG2);

    vos_mem_set((tANI_U8 *) &tEXTScanFullScanResult,
                sizeof(tSirWifiFullScanResultEvent), 0);

    tEXTScanFullScanResult.ap.ts = vos_get_monotonic_boottime();

    vos_mem_copy(&tEXTScanFullScanResult.ap.bssid,
                 pHdr->bssId, sizeof(tSirMacAddr));

    limPrintMacAddr(pMac, pHdr->bssId, LOG2);


    rfBand = WDA_GET_RX_RFBAND(pRxPacketInfo);
    rxChannelInBD = WDA_GET_RX_CH(pRxPacketInfo);

    if ((!rfBand) || IS_5G_BAND(rfBand))
    {
        rxChannelInBD = limUnmapChannel(rxChannelInBD);
    }

    tEXTScanFullScanResult.ap.channel =
            (tANI_U32)vos_chan_to_freq(rxChannelInBD);
    tEXTScanFullScanResult.ap.rssi = WDA_GET_RX_RSSI_DB(pRxPacketInfo);

    if (fc.subType == SIR_MAC_MGMT_BEACON)
    {
        limLog( pMac, LOG2, FL("Beacon "));

        pBeacon = vos_mem_malloc(sizeof(tDot11fBeacon));
        if ( NULL == pBeacon ){
            limLog(pMac, LOGE, FL("Failed to allocate memory\n") );
            return;
        }

        vos_mem_set( ( tANI_U8* )pBeacon, sizeof(tDot11fBeacon), 0 );
        // delegate to the framesc-generated code,
        status = dot11fUnpackBeacon( pMac,
                    (tANI_U8 *)WDA_GET_RX_MPDU_DATA(pRxPacketInfo),
                    WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo), pBeacon );

        if ( DOT11F_FAILED( status ) )
        {
            limLog(pMac, LOGE, FL("Failed to parse a Beacons"
                        "(%d):\n"), status);
            vos_mem_free(pBeacon);
            return;
        }
        if ( pBeacon->SSID.present )
        {
            vos_mem_copy(tEXTScanFullScanResult.ap.ssid,
                pBeacon->SSID.ssid,
                pBeacon->SSID.num_ssid);
        }
        //NULL Terminate the string.
        tEXTScanFullScanResult.ap.ssid[pBeacon->SSID.num_ssid] = 0;
        tEXTScanFullScanResult.ap.beaconPeriod =
                                       pBeacon->BeaconInterval.interval;
        tEXTScanFullScanResult.ap.capability =
                                   *((tANI_U16 *)&pBeacon->Capabilities);
        vos_mem_free(pBeacon);
    }
    else if (fc.subType == SIR_MAC_MGMT_PROBE_RSP)
    {
        limLog( pMac, LOG2, FL("Probe rsp "));

        pProbeResponse = vos_mem_malloc(sizeof(tDot11fProbeResponse));
        if ( NULL == pProbeResponse ){
            limLog(pMac, LOGE, FL("Failed to allocate memory\n") );
            return;
        }

        vos_mem_set( ( tANI_U8* )pProbeResponse,
                                sizeof(tDot11fProbeResponse), 0);
        //delegate to the framesc-generated code,
        status = dot11fUnpackProbeResponse( pMac,
                    (tANI_U8 *)WDA_GET_RX_MPDU_DATA(pRxPacketInfo),
                    WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo), pProbeResponse );

        if ( DOT11F_FAILED( status ) )
        {
            limLog(pMac, LOGE, FL("Failed to parse a Probe"
                        "Response (%d:\n"), status);
            vos_mem_free(pProbeResponse);
            return;
        }
        if ( pProbeResponse->SSID.present )
        {
            vos_mem_copy(tEXTScanFullScanResult.ap.ssid,
                pProbeResponse->SSID.ssid,
                pProbeResponse->SSID.num_ssid);
        }
        //NULL Terminate the string.
        tEXTScanFullScanResult.ap.ssid[pProbeResponse->SSID.num_ssid] = 0;
        tEXTScanFullScanResult.ap.beaconPeriod =
                                    pProbeResponse->BeaconInterval.interval;
        tEXTScanFullScanResult.ap.capability =
                            *(((tANI_U16 *)&pProbeResponse->Capabilities));

        vos_mem_free(pBeacon);
    }
    else
    {
        limLog( pMac, LOGE, FL("Wrong frame Type %d, Subtype %d for LFR"),
                fc.type, fc.subType);
        VOS_ASSERT(0);
        return;
    }

    tEXTScanFullScanResult.requestId = pMac->sme.extScanStartReqId;
    tEXTScanFullScanResult.ieLength =
                   WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo) - SIZE_OF_FIXED_PARAM;
    tEXTScanFullScanResult.ie =(tSirInformationElement *)
        ((tANI_U8 *)WDA_GET_RX_MPDU_DATA(pRxPacketInfo) + SIZE_OF_FIXED_PARAM);

    pCallbackContext = pMac->sme.pEXTScanCallbackContext;
    if(pMac->sme.pEXTScanIndCb)
    {
        pMac->sme.pEXTScanIndCb(pCallbackContext,
                SIR_HAL_EXTSCAN_FULL_SCAN_RESULT_IND,
                (tANI_U8 *)&tEXTScanFullScanResult);
    }

    return;
} /*** end limProcessEXTScanRealTimeData() ***/
#endif /* WLAN_FEATURE_EXTSCAN */

/**
 * limHandle80211Frames()
 *
 *FUNCTION:
 * This function is called to process 802.11 frames
 * received by LIM.
 *
 *LOGIC:
 * NA
 *
 *ASSUMPTIONS:
 * NA
 *
 *NOTE:
 * NA
 *
 * @param  pMac - Pointer to Global MAC structure
 * @param  pMsg of type tSirMsgQ - Pointer to the message structure
 * @return None
 */

static void 
limHandle80211Frames(tpAniSirGlobal pMac, tpSirMsgQ limMsg, tANI_U8 *pDeferMsg)
{
    tANI_U8          *pRxPacketInfo = NULL;
    tSirMacFrameCtl  fc;
    tpSirMacMgmtHdr    pHdr=NULL;
    tpPESession         psessionEntry=NULL;
    tANI_U8             sessionId;
    tAniBool            isFrmFt = FALSE;
    tANI_U16            fcOffset = WLANHAL_RX_BD_HEADER_SIZE;

    *pDeferMsg= false;
    limGetBDfromRxPacket(pMac, limMsg->bodyptr, (tANI_U32 **)&pRxPacketInfo);

#ifdef WLAN_FEATURE_EXTSCAN

    if ( WDA_GET_EXTSCANFULLSCANRESIND(pRxPacketInfo))
    {
        limLog( pMac, LOG2, FL("Notify EXTSCAN scan results to the HDD"));
        limProcessEXTScanRealTimeData(pMac, pRxPacketInfo);
        goto end;
    }
#endif //WLAN_FEATURE_EXTSCAN

    pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
    isFrmFt = WDA_GET_RX_FT_DONE(pRxPacketInfo);
    fcOffset = (v_U8_t)WDA_GET_RX_MPDU_HEADER_OFFSET(pRxPacketInfo);
    fc = pHdr->fc;

#ifdef WLAN_DUMP_MGMTFRAMES
    limLog( pMac, LOGE, FL("ProtVersion %d, Type %d, Subtype %d rateIndex=%d"),
            fc.protVer, fc.type, fc.subType,
            WDA_GET_RX_MAC_RATE_IDX(pRxPacketInfo));
    VOS_TRACE_HEX_DUMP(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_ERROR, pHdr,
                       WDA_GET_RX_MPDU_HEADER_LEN(pRxPacketInfo));
#endif

        if ((fc.type == SIR_MAC_MGMT_FRAME) &&
                (fc.subType != SIR_MAC_MGMT_BEACON))
        {
            limLog(pMac, LOG1, FL("RX MGMT - Type %hu, SubType %hu, Seq.no %d"),
                    fc.type, fc.subType,
                    ((pHdr->seqControl.seqNumHi << 4) | (pHdr->seqControl.seqNumLo)));
        }
#ifdef WLAN_FEATURE_ROAM_SCAN_OFFLOAD
    if ( WDA_GET_ROAMCANDIDATEIND(pRxPacketInfo))
    {
        limLog( pMac, LOG2, FL("Notify SME with candidate ind"));
        //send a session 0 for now - TBD
        limSendSmeCandidateFoundInd(pMac, 0);
        goto end;
    }
    if (WDA_GET_OFFLOADSCANLEARN(pRxPacketInfo))
    {
        if (fc.subType == SIR_MAC_MGMT_BEACON)
        {
            limLog( pMac, LOG2, FL("Save this beacon in LFR cache"));
            __limHandleBeacon(pMac, limMsg, NULL);
        }
        else if (fc.subType == SIR_MAC_MGMT_PROBE_RSP)
        {
            limLog( pMac, LOG2, FL("Save this probe rsp in LFR cache"));
            limProcessProbeRspFrameNoSession(pMac, pRxPacketInfo);
        }
        else
        {
            limLog( pMac, LOGE, FL("Wrong frame Type %d, Subtype %d for LFR"),
                    fc.type, fc.subType);
        }
        goto end;
    }
#endif //WLAN_FEATURE_ROAM_SCAN_OFFLOAD
#ifdef FEATURE_WLAN_ESE
    if (fc.type == SIR_MAC_DATA_FRAME && isFrmFt) 
    {
#if 0 // Ese TBD Need to PORT
        tpSirMacDot3Hdr pDataFrmHdr;

        pDataFrmHdr = (tpSirMacDot3Hdr)((tANI_U8 *)pBD+ WLANHAL_RX_BD_GET_MPDU_H_OFFSET(pBD));
        if((psessionEntry = peFindSessionByBssid(pMac,pDataFrmHdr->sa,&sessionId))== NULL)
        {
            limLog( pMac, LOGE, FL("Session not found for Frm type %d, subtype %d, SA: "), fc.type, fc.subType);
            limPrintMacAddr(pMac, pDataFrmHdr->sa, LOGE);
            limPktFree(pMac, HAL_TXRX_FRM_802_11_MGMT, pBD, limMsg->bodyptr);
            return;
        }

        if (!psessionEntry->isESEconnection)
        {
            limLog( pMac, LOGE, FL("LIM received Type %d, Subtype %d in Non ESE connection"),
                    fc.type, fc.subType);
            limPktFree(pMac, HAL_TXRX_FRM_802_11_MGMT, pBD, limMsg->bodyptr);
            return;
        }
        limLog( pMac, LOGE, FL("Processing IAPP Frm from SA:"));
        limPrintMacAddr(pMac, pDataFrmHdr->sa, LOGE);
#else
        printk("%s: Need to port handling of IAPP frames to PRIMA for ESE", __func__);
#endif


    } else
#endif

    if ((fc.type == SIR_MAC_MGMT_FRAME) &&
        (fc.subType == SIR_MAC_MGMT_PROBE_RSP) &&
        pMac->lim.isSpoofingEnabled)
    {
        limLog( pMac, LOG2, FL("Probe Rsp recieved with DA: "MAC_ADDRESS_STR
            " and selfMac Addr:"MAC_ADDRESS_STR), MAC_ADDR_ARRAY(pHdr->da),
                            MAC_ADDR_ARRAY(pMac->lim.gSelfMacAddr));
        if (VOS_TRUE == vos_mem_compare((v_VOID_t*) pHdr->da,
               (v_VOID_t*) pMac->lim.spoofMacAddr, VOS_MAC_ADDRESS_LEN))
        {
            vos_mem_copy(pHdr->da, pMac->lim.gSelfMacAddr, VOS_MAC_ADDRESS_LEN);
        }
    }

    /* Added For BT-AMP Support */
    if((psessionEntry = peFindSessionByBssid(pMac,pHdr->bssId,&sessionId))== NULL)
    {
#ifdef WLAN_FEATURE_VOWIFI_11R
        if (fc.subType == SIR_MAC_MGMT_AUTH) 
        {
#ifdef WLAN_FEATURE_VOWIFI_11R_DEBUG
            limLog( pMac, LOG1, FL("ProtVersion %d, Type %d, Subtype %d rateIndex=%d"),
                    fc.protVer, fc.type, fc.subType, WDA_GET_RX_MAC_RATE_IDX(pRxPacketInfo));
            limPrintMacAddr(pMac, pHdr->bssId, LOG1);
#endif
            if (limProcessAuthFrameNoSession(pMac, pRxPacketInfo, limMsg->bodyptr) == eSIR_SUCCESS)
            {
                goto end;
            }
        }
#endif
        if((fc.subType != SIR_MAC_MGMT_PROBE_RSP )&&
            (fc.subType != SIR_MAC_MGMT_BEACON)&&
            (fc.subType != SIR_MAC_MGMT_PROBE_REQ)
            && (fc.subType != SIR_MAC_MGMT_ACTION ) //Public action frame can be received from non-associated stations.
          )
        {

            if((psessionEntry = peFindSessionByPeerSta(pMac,pHdr->sa,&sessionId))== NULL) 
            {
               limLog(pMac, LOG1, FL("session does not exist for given bssId"));
               goto end;
            }
            else
               limLog(pMac,LOG1,"SessionId:%d Session Exist for given Bssid",
                       psessionEntry->peSessionId);
        }
        //  For p2p resp frames search for valid session with DA as
        //  BSSID will be SA and session will be present with DA only
        if(fc.subType == SIR_MAC_MGMT_ACTION )
        {
           psessionEntry = peFindSessionByBssid(pMac,pHdr->da,&sessionId);
        }
    }


    /* Check if frame is registered by HDD */
    if(limCheckMgmtRegisteredFrames(pMac, pRxPacketInfo, psessionEntry))
    {        
        limLog( pMac, LOG1, FL("Received frame is passed to SME"));
        goto end;
    }



    if (fc.protVer != SIR_MAC_PROTOCOL_VERSION)
    {   // Received Frame with non-zero Protocol Version
        limLog(pMac, LOGE, FL("Unexpected frame with protVersion %d received"),
           fc.protVer);
#ifdef WLAN_DEBUG            
        pMac->lim.numProtErr++;
#endif
        goto end;
    }

    if (!pMac->fScanOffload)
    {
        if (limIsSystemInScanState(pMac))
        {
            limHandleFramesInScanState(pMac, limMsg, pRxPacketInfo, pDeferMsg, psessionEntry);
            return;
        }
    }

/* Chance of crashing : to be done BT-AMP ........happens when broadcast probe req is received */

#if 0
    if (psessionEntry->limSystemRole == eLIM_UNKNOWN_ROLE) {
        limLog( pMac, LOGW, FL( "gLimSystemRole is %d. Exiting..." ),psessionEntry->limSystemRole );
        limPktFree(pMac, HAL_TXRX_FRM_802_11_MGMT, pRxPacketInfo, (void *) limMsg->bodyptr);

#ifdef WLAN_DEBUG        
        pMac->lim.numProtErr++;
#endif
        return;
    }
 #endif     //HACK to continue scanning    


#ifdef WLAN_DEBUG    
    pMac->lim.numMAC[fc.type][fc.subType]++;
#endif
    
    switch (fc.type)
    {
        case SIR_MAC_MGMT_FRAME:
        {
                #if 0   //TBD-RAJESH fix this
                if (limIsReassocInProgress( pMac,psessionEntry) && (fc.subType != SIR_MAC_MGMT_DISASSOC) &&
                                                (fc.subType != SIR_MAC_MGMT_DEAUTH) && (fc.subType != SIR_MAC_MGMT_REASSOC_RSP))
                {
                    limLog(pMac, LOGE, FL("Frame with Type - %d, Subtype - %d received in ReAssoc Wait state, dropping..."),
                                                                fc.type, fc.subType);
                    return;
            }
                #endif   //HACK to continue scanning 
            // Received Management frame
            switch (fc.subType)
            {
                case SIR_MAC_MGMT_ASSOC_REQ:
                    // Make sure the role supports Association
                    if ((psessionEntry->limSystemRole == eLIM_BT_AMP_AP_ROLE)
                    || (psessionEntry->limSystemRole == eLIM_AP_ROLE)
                    )
                        limProcessAssocReqFrame(pMac, pRxPacketInfo, LIM_ASSOC, psessionEntry);

                    else
                    {
                        // Unwanted messages - Log error
                        limLog(pMac, LOGE, FL("unexpected message received %X"),limMsg->type);
                        limPrintMsgName(pMac, LOGE, limMsg->type);
                    }
                    break;

                case SIR_MAC_MGMT_ASSOC_RSP:
                    limProcessAssocRspFrame(pMac, pRxPacketInfo, LIM_ASSOC,psessionEntry);
                    break;

                case SIR_MAC_MGMT_REASSOC_REQ:
                    // Make sure the role supports Reassociation
                    if ((psessionEntry->limSystemRole == eLIM_BT_AMP_AP_ROLE)
                      || (psessionEntry->limSystemRole == eLIM_AP_ROLE)
                    ){
                        limProcessAssocReqFrame(pMac, pRxPacketInfo, LIM_REASSOC, psessionEntry);
                    }
                    else
                    {
                        // Unwanted messages - Log error
                        limLog(pMac, LOGE, FL("unexpected message received %X"),limMsg->type);
                        limPrintMsgName(pMac, LOGE, limMsg->type);
                    }
                    break;

                case SIR_MAC_MGMT_REASSOC_RSP:
                    limProcessAssocRspFrame(pMac, pRxPacketInfo, LIM_REASSOC,psessionEntry);
                    break;

                case SIR_MAC_MGMT_PROBE_REQ:
                    limProcessProbeReqFrame_multiple_BSS(pMac, pRxPacketInfo,psessionEntry);
                    break;

                case SIR_MAC_MGMT_PROBE_RSP:
                    if(psessionEntry == NULL)
                        limProcessProbeRspFrameNoSession(pMac, pRxPacketInfo);
                    else
                        limProcessProbeRspFrame(pMac, pRxPacketInfo, psessionEntry);
                    break;

                case SIR_MAC_MGMT_BEACON:
                    __limHandleBeacon(pMac, limMsg,psessionEntry);
                    break;

                case SIR_MAC_MGMT_DISASSOC:
                    limProcessDisassocFrame(pMac, pRxPacketInfo,psessionEntry);
                    break;

                case SIR_MAC_MGMT_AUTH:
                    limProcessAuthFrame(pMac, pRxPacketInfo,psessionEntry);
                    break;

                case SIR_MAC_MGMT_DEAUTH:
                    limProcessDeauthFrame(pMac, pRxPacketInfo,psessionEntry);
                    break;

                case SIR_MAC_MGMT_ACTION:
                   if(psessionEntry == NULL)
                      limProcessActionFrameNoSession(pMac, pRxPacketInfo);
                   else
                   {
                      if (WDA_GET_RX_UNKNOWN_UCAST(pRxPacketInfo))
                         limHandleUnknownA2IndexFrames(pMac, pRxPacketInfo,psessionEntry);
                     else
                         limProcessActionFrame(pMac, pRxPacketInfo,psessionEntry);
                   }
                   break;
                default:
                    // Received Management frame of 'reserved' subtype
                    break;
            } // switch (fc.subType)

        }
        break;
        case SIR_MAC_DATA_FRAME:
        {
#ifdef FEATURE_WLAN_TDLS_INTERNAL
            /*
             * if we reach here, following cases are possible. 
             * Possible cases: a) if frame translation is disabled.
             *                 b) Some frame with ADRR2 filter enabled may come
             *                    here.
             */ 
            tANI_U8 *dataOffset = WDA_GET_RX_MPDU_DATA(pRxPacketInfo);
            tANI_U8 *rfc1042Hdr = (tANI_U8 *)(dataOffset + RFC1042_HDR_LENGTH) ;
            tANI_U16 ethType = GET_BE16(rfc1042Hdr) ;
            VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_ERROR, 
                                ("TDLS frame with 80211 Header")) ;
            if(ETH_TYPE_89_0d == ethType)
            {
                tANI_U8 payloadType = (rfc1042Hdr + ETH_TYPE_LEN)[0] ;
                if(PAYLOAD_TYPE_TDLS == payloadType)
                {
                    limProcessTdlsFrame(pMac, (tANI_U32*)pRxPacketInfo) ;
                }
            }     
#endif
#if defined(FEATURE_WLAN_ESE) && !defined(FEATURE_WLAN_ESE_UPLOAD)
             /* We accept data frame (IAPP frame) only if Session is
              * present and ese connection is established on that
              * session
              */
             if (psessionEntry && psessionEntry->isESEconnection) {
                 limProcessIappFrame(pMac, pRxPacketInfo, psessionEntry);
             }
#endif
        }
        break;
        default:
            // Received frame of type 'reserved'
            break;

    } // switch (fc.type)

end:
    limPktFree(pMac, HAL_TXRX_FRM_802_11_MGMT, pRxPacketInfo, (void *) limMsg->bodyptr) ;
    return;
} /*** end limHandle80211Frames() ***/

/**
 * limSendStopScanOffloadReq()
 *
 *FUNCTION:
 * This function will be called to abort the ongoing offloaded scan
 * request.
 *
 *
 *NOTE:
 *
 * @param  pMac      Pointer to Global MAC structure
 * @return eHAL_STATUS_SUCCESS or eHAL_STATUS_FAILURE
 */
eHalStatus limSendStopScanOffloadReq(tpAniSirGlobal pMac, tANI_U8 SessionId)
{
    tSirMsgQ msg;
    tSirRetStatus rc = eSIR_SUCCESS;
    tAbortScanParams *pAbortScanParams;

    pAbortScanParams = vos_mem_malloc(sizeof(tAbortScanParams));
    if (NULL == pAbortScanParams)
    {
        limLog(pMac, LOGP, FL("Memory allocation failed for AbortScanParams"));
        return eHAL_STATUS_FAILURE;
    }

    pAbortScanParams->SessionId = SessionId;
    msg.type = WDA_STOP_SCAN_OFFLOAD_REQ;
    msg.bodyptr = pAbortScanParams;
    msg.bodyval = 0;

    rc = wdaPostCtrlMsg(pMac, &msg);
    if (rc != eSIR_SUCCESS)
    {
        limLog(pMac, LOGE, FL("wdaPostCtrlMsg() return failure"));
        vos_mem_free(pAbortScanParams);
        return eHAL_STATUS_FAILURE;
    }

    limLog(pMac, LOG1, FL("Abort ongoing offload scan."));
    return eHAL_STATUS_SUCCESS;

}

/**
 * limProcessAbortScanInd()
 *
 *FUNCTION:
 * This function is called from HDD to abort the scan which is presently being run
 *
 *
 *NOTE:
 *
 * @param  pMac      Pointer to Global MAC structure
 * @param  *pMsgBuf  A pointer to the SME message buffer
 * @return None
 */
void
limProcessAbortScanInd(tpAniSirGlobal pMac, tANI_U8 SessionId)
{
#ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM //FEATURE_WLAN_DIAG_SUPPORT 
    limDiagEventReport(pMac, WLAN_PE_DIAG_SCAN_ABORT_IND_EVENT, NULL, 0, 0);
#endif //FEATURE_WLAN_DIAG_SUPPORT
    
    /* Deactivate the gLimBackgroundScanTimer as part of the abort scan.
     * SME should send WNI_CFG_BACKGROUND_SCAN_PERIOD indication 
     * to start the background scan again
     */
    limLog(pMac, LOG1, FL("Processing AbortScan Ind"));

    limAbortBackgroundScan(pMac);

    if (pMac->fScanOffload)
    {
        /* send stop scan cmd to fw if scan offload is enabled. */
        limSendStopScanOffloadReq(pMac, SessionId);
    }
    else
    {
        /* Abort the scan if its running, else just return */
        if(limIsSystemInScanState(pMac))
        {
            if( (eLIM_HAL_INIT_SCAN_WAIT_STATE == pMac->lim.gLimHalScanState ) ||
                    (eLIM_HAL_START_SCAN_WAIT_STATE == pMac->lim.gLimHalScanState ) ||
                    (eLIM_HAL_END_SCAN_WAIT_STATE == pMac->lim.gLimHalScanState ) ||
                    (eLIM_HAL_FINISH_SCAN_WAIT_STATE == pMac->lim.gLimHalScanState) )
            {
                //Simply signal we need to abort
                limLog( pMac, LOGW, FL(" waiting for HAL, simply signal abort gLimHalScanState = %d"), pMac->lim.gLimHalScanState );
                pMac->lim.abortScan = 1;
            }
            else
            {
                //Force abort
                limLog( pMac, LOGW, FL(" Force aborting scan") );
                pMac->lim.abortScan = 0;
                limDeactivateAndChangeTimer(pMac, eLIM_MIN_CHANNEL_TIMER);
                limDeactivateAndChangeTimer(pMac, eLIM_MAX_CHANNEL_TIMER);
                //Set the resume channel to Any valid channel (invalid).
                //This will instruct HAL to set it to any previous valid channel.
                peSetResumeChannel(pMac, 0, 0);
                limSendHalFinishScanReq(pMac, eLIM_HAL_FINISH_SCAN_WAIT_STATE);
            }
        }
    }
    return;
}

/**
 * limMessageProcessor
 *
 *FUNCTION:
 * Wrapper function for limProcessMessages when handling messages received by LIM.
 * Could either defer messages or process them.
 * @param  pMac   Pointer to Global MAC structure
 * @param  limMsg Received LIM message
 * @return None
 */

void limMessageProcessor(tpAniSirGlobal pMac, tpSirMsgQ limMsg)
{
    if (eLIM_MLM_OFFLINE_STATE == pMac->lim.gLimMlmState)
    {
        peFreeMsg(pMac, limMsg);
        return;
    }

    if (!defMsgDecision(pMac, limMsg))
    {
        limProcessMessages(pMac, limMsg);
        // process deferred message queue if allowed
        {
            if ( (! (pMac->lim.gLimAddtsSent))
                            &&
                    (! (limIsSystemInScanState(pMac)))
                )
            {
                if (true == GET_LIM_PROCESS_DEFD_MESGS(pMac))
                  limProcessDeferredMessageQueue(pMac);
            }
        }
    }
}

#ifdef FEATURE_OEM_DATA_SUPPORT

void limOemDataRspHandleResumeLinkRsp(tpAniSirGlobal pMac, eHalStatus status, tANI_U32* mlmOemDataRsp)
{
    if(status != eHAL_STATUS_SUCCESS)
    {
        limLog(pMac, LOGE, FL("OEM Data Rsp failed to get the response for resume link"));
    }

    if(NULL != pMac->lim.gpLimMlmOemDataReq)
    {
        vos_mem_free(pMac->lim.gpLimMlmOemDataReq);
        pMac->lim.gpLimMlmOemDataReq = NULL;
    }

    //"Failure" status doesn't mean that Oem Data Rsp did not happen
    //and hence we need to respond to upper layers. Only Resume link is failed, but
    //we got the oem data response already.
    //Post the meessage to MLM
    limPostSmeMessage(pMac, LIM_MLM_OEM_DATA_CNF, (tANI_U32*)(mlmOemDataRsp));

    return;
}

void limProcessOemDataRsp(tpAniSirGlobal pMac, tANI_U32* body)
{
    tpLimMlmOemDataRsp mlmOemDataRsp = NULL;
    tpStartOemDataRsp oemDataRsp = NULL;

    //Process all the messages for the lim queue
    SET_LIM_PROCESS_DEFD_MESGS(pMac, true);

    oemDataRsp = (tpStartOemDataRsp)(body);

    mlmOemDataRsp = vos_mem_malloc(sizeof(tLimMlmOemDataRsp));
    if ( NULL == mlmOemDataRsp )
    {
        limLog(pMac, LOGP, FL("could not allocate memory for mlmOemDataRsp"));
        return;
    }

    //copy the memory into tLimMlmOemDataRsp and free the tStartOemDataRsp
    //the structures tStartOemDataRsp and tLimMlmOemDataRsp have the same structure
    vos_mem_copy((void*)(mlmOemDataRsp), (void*)(oemDataRsp),
                  sizeof(tLimMlmOemDataRsp));

    //Now free the incoming memory
    vos_mem_free(oemDataRsp);

    limResumeLink(pMac, limOemDataRspHandleResumeLinkRsp, (tANI_U32*)mlmOemDataRsp);

    return;
}

#endif

static tANI_BOOLEAN limAgeOutProbeReq( tpAniSirGlobal pMac, tpSirMsgQ  limMsg,
                                       vos_pkt_t  *pVosPkt )
{
    tANI_U8    *pRxPacketInfo = NULL;
    tSirMacFrameCtl  fc;
    tpSirMacMgmtHdr    pHdr=NULL;
    tANI_BOOLEAN match = VOS_FALSE;

    limGetBDfromRxPacket(pMac, limMsg->bodyptr, (tANI_U32 **)&pRxPacketInfo);
    pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
    fc = pHdr->fc;
    if ( fc.subType == SIR_MAC_MGMT_PROBE_REQ )
    {
        if(  vos_timer_get_system_ticks() - pVosPkt->timestamp >= MAX_PROBEREQ_TIME )
        {
            // drop packet
           limLog(pMac, LOGE,
           FL("Dropping Aged Out probe requests. Peer MAC is "MAC_ADDRESS_STR),
                MAC_ADDR_ARRAY(pHdr->sa));

            vos_pkt_return_packet(pVosPkt);
            match = VOS_TRUE;
        }
    }
    return match;
}

/**
 * limProcessMessages
 *
 *FUNCTION:
 * This function is called by limProcessMessageQueue function. This
 * function processes messages received by LIM.
 *
 *LOGIC:
 * Depending on the message type, corresponding function will be
 * called, for example limProcessSmeMessages() will be called to
 * process SME messages received from HDD/Upper layer software module.
 *
 *ASSUMPTIONS:
 * NA
 *
 *NOTE:
 * NA
 *
 * @param  pMac   Pointer to Global MAC structure
 * @param  limMsg Received LIM message
 * @return None
 */

void
limProcessMessages(tpAniSirGlobal pMac, tpSirMsgQ  limMsg)
{
    tANI_U8  deferMsg = false;
    tLinkStateParams *linkStateParams;
#if defined WLAN_FEATURE_VOWIFI_11R
    tpPESession pSession;
#endif
#if defined(ANI_DVT_DEBUG)
    tSirMsgQ  msgQ;
#endif
    if(pMac->gDriverType == eDRIVER_TYPE_MFG)
    {
        vos_mem_free(limMsg->bodyptr);
        limMsg->bodyptr = NULL;
        return;
    }
#ifdef WLAN_DEBUG    
    pMac->lim.numTot++;
#endif


   PELOG3(limLog(pMac, LOG3, FL("rcvd msgType = %s, sme state = %s, mlm state = %s"),
      limMsgStr(limMsg->type), limSmeStateStr(pMac->lim.gLimSmeState),
      limMlmStateStr(pMac->lim.gLimMlmState));)

    MTRACE(macTraceMsgRx(pMac, NO_SESSION, LIM_TRACE_MAKE_RXMSG(limMsg->type, LIM_MSG_PROCESSED));)

    switch (limMsg->type)
    {

        case SIR_LIM_UPDATE_BEACON:
            limUpdateBeacon(pMac);
            break;

        case SIR_CFG_PARAM_UPDATE_IND:
            /// CFG parameter updated
            if (limIsSystemInScanState(pMac))
            {
                // System is in DFS (Learn) mode
                // Defer processsing this message
                if (limDeferMsg(pMac, limMsg) != TX_SUCCESS)
                {
                    if(!(pMac->lim.deferredMsgCnt & 0xF))
                    {
                        PELOGE(limLog(pMac, LOGE, FL("Unable to Defer message(0x%X) limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                        limMsg->type, pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                        pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
                    }
                    limLogSessionStates(pMac);
                    limPrintMsgName(pMac, LOGE, limMsg->type);
                }
            }
            else
            {
                limHandleCFGparamUpdate(pMac, limMsg->bodyval);
            }

            break;

        case WDA_INIT_SCAN_RSP:
            limProcessInitScanRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;

        case WDA_START_SCAN_RSP:
            limProcessStartScanRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;

        case WDA_END_SCAN_RSP:
            limProcessEndScanRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;

        case WDA_FINISH_SCAN_RSP:
            limProcessFinishScanRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
#ifdef FEATURE_OEM_DATA_SUPPORT
        case WDA_START_OEM_DATA_RSP:
            limProcessOemDataRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
#endif

        case WDA_SWITCH_CHANNEL_RSP:
            limProcessSwitchChannelRsp(pMac, limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
            
#ifdef ANI_SIR_IBSS_PEER_CACHING
        case WDA_IBSS_STA_ADD:
            limIbssStaAdd(pMac, limMsg->bodyptr);
            break;
#endif
        case SIR_BB_XPORT_MGMT_MSG:
            // These messages are from Peer MAC entity.
#ifdef WLAN_DEBUG                
            pMac->lim.numBbt++;
#endif
            {
                v_U16_t     pktLen = 0;
                vos_pkt_t  *pVosPkt;
                VOS_STATUS  vosStatus;
                tSirMsgQ    limMsgNew;
#ifdef FEATURE_WLAN_TDLS_INTERNAL
                tANI_U32    *pBD = NULL ;
#endif 

                /* The original limMsg which we were deferring have the 
                 * bodyPointer point to 'BD' instead of 'Vos pkt'. If we don't make a copy
                 * of limMsg, then vos_pkt_peek_data will overwrite the limMsg->bodyPointer. 
                 * and next time when we try to process the msg, we will try to use 'BD' as 
                 * 'Vos Pkt' which will cause a crash
                 */
                vos_mem_copy((tANI_U8*)&limMsgNew, (tANI_U8*)limMsg,
                             sizeof(tSirMsgQ));
                pVosPkt = (vos_pkt_t *)limMsgNew.bodyptr;
                vos_pkt_get_packet_length(pVosPkt, &pktLen);

                vosStatus = WDA_DS_PeekRxPacketInfo( pVosPkt, (v_PVOID_t *)&limMsgNew.bodyptr, VOS_FALSE );

                if( !VOS_IS_STATUS_SUCCESS(vosStatus) )
                {
                    limDecrementPendingMgmtCount(pMac);
                    vos_pkt_return_packet(pVosPkt);
                    break;

                }

                /*
                * putting a check for age out probe request frames
                * such that any probe req more than 0.5 sec old can directly
                * be dropped. With this, there won't be blocking of MC thread.
                */

                if( limAgeOutProbeReq ( pMac, &limMsgNew, pVosPkt ))
                {
                   limDecrementPendingMgmtCount(pMac);
                   break;
                }

#ifdef FEATURE_WLAN_TDLS_INTERNAL
                /* 
                 * TDLS frames comes as translated frames as well as
                 * MAC 802.11 data frames..
                 */
                limGetBDfromRxPacket(pMac, limMsgNew.bodyptr, &pBD);
                if(0 != WDA_GET_RX_FT_DONE(pBD))
                {
                    /*
                     * TODO: check for scanning state and set deferMesg flag
                     * accordingly..
                     */
                    deferMsg = false ;

                    limProcessTdlsFrame(pMac, pBD) ;
                }
                else
#endif

                limHandle80211Frames(pMac, &limMsgNew, &deferMsg);

                if ( deferMsg == true )
                {
                        limLog(pMac, LOG2, FL("Defer message type=%X "),
                                                            limMsg->type);
                        if (limDeferMsg(pMac, limMsg) != TX_SUCCESS)
                        {
                            PELOGE(limLog(pMac, LOGE, FL("Unable to Defer message(0x%X) limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                                limMsg->type, pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                                pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
                            limLogSessionStates(pMac);
                            limPrintMsgName(pMac, LOGE, limMsg->type);
                            limDecrementPendingMgmtCount(pMac);
                            vos_pkt_return_packet(pVosPkt);
                        }
                }
                else
                {
                    /* PE is not deferring this 802.11 frame so we need to call vos_pkt_return. 
                     * Asumption here is when Rx mgmt frame processing is done,
                     * voss packet could be freed here.
                     */
                    limDecrementPendingMgmtCount(pMac);
                    vos_pkt_return_packet(pVosPkt);
                }
            }
            break;

        case eWNI_SME_SCAN_REQ:
        case eWNI_SME_REMAIN_ON_CHANNEL_REQ:
        case eWNI_SME_DISASSOC_REQ:
        case eWNI_SME_DEAUTH_REQ:
        case eWNI_SME_GET_SCANNED_CHANNEL_REQ:
#ifdef FEATURE_OEM_DATA_SUPPORT
        case eWNI_SME_OEM_DATA_REQ:
#endif
#ifdef FEATURE_WLAN_TDLS
        case eWNI_SME_TDLS_SEND_MGMT_REQ:
        case eWNI_SME_TDLS_ADD_STA_REQ:
        case eWNI_SME_TDLS_DEL_STA_REQ:
        case eWNI_SME_TDLS_LINK_ESTABLISH_REQ:
// tdlsoffchan
        case eWNI_SME_TDLS_CHANNEL_SWITCH_REQ:
#endif
#ifdef FEATURE_WLAN_TDLS_INTERNAL
        case eWNI_SME_TDLS_DISCOVERY_START_REQ:
        case eWNI_SME_TDLS_LINK_START_REQ:
        case eWNI_SME_TDLS_TEARDOWN_REQ:
#endif
        case eWNI_SME_RESET_AP_CAPS_CHANGED:
            // These messages are from HDD
            limProcessNormalHddMsg(pMac, limMsg, true);  //need to response to hdd
            break;

        case eWNI_SME_SCAN_ABORT_IND:
        {
            tANI_U8 *pSessionId = (tANI_U8 *)limMsg->bodyptr;
            limProcessAbortScanInd(pMac, *pSessionId);
            vos_mem_free((v_VOID_t *)limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
        }
        case eWNI_SME_START_REQ:
        case eWNI_SME_SYS_READY_IND:
#ifndef WNI_ASKEY_NON_SUPPORT_FEATURE
        case eWNI_SME_JOIN_REQ:
#endif
        case eWNI_SME_AUTH_REQ:
        case eWNI_SME_REASSOC_REQ:
        case eWNI_SME_START_BSS_REQ:
        case eWNI_SME_STOP_BSS_REQ:
        case eWNI_SME_SWITCH_CHL_REQ:
        case eWNI_SME_SWITCH_CHL_CB_PRIMARY_REQ:
        case eWNI_SME_SWITCH_CHL_CB_SECONDARY_REQ:
        case eWNI_SME_SETCONTEXT_REQ:
        case eWNI_SME_REMOVEKEY_REQ:
#ifndef WNI_ASKEY_NON_SUPPORT_FEATURE
        case eWNI_SME_PROMISCUOUS_MODE_REQ:
#endif
        case eWNI_SME_DISASSOC_CNF:
        case eWNI_SME_DEAUTH_CNF:
        case eWNI_SME_ASSOC_CNF:
        case eWNI_SME_REASSOC_CNF:
        case eWNI_SME_ADDTS_REQ:
        case eWNI_SME_DELTS_REQ:
        case eWNI_SME_DEL_BA_PEER_IND:
        case eWNI_SME_SET_TX_POWER_REQ:
        case eWNI_SME_GET_TX_POWER_REQ:
        case eWNI_SME_GET_NOISE_REQ:
        case eWNI_SME_GET_ASSOC_STAS_REQ:
        case eWNI_SME_TKIP_CNTR_MEAS_REQ:
        case eWNI_SME_UPDATE_APWPSIE_REQ:
        case eWNI_SME_HIDE_SSID_REQ:
        case eWNI_SME_GET_WPSPBC_SESSION_REQ:
        case eWNI_SME_SET_APWPARSNIEs_REQ:
        case eWNI_SME_CHNG_MCC_BEACON_INTERVAL:
#if defined WLAN_FEATURE_VOWIFI
        case eWNI_SME_NEIGHBOR_REPORT_REQ_IND:
        case eWNI_SME_BEACON_REPORT_RESP_XMIT_IND:
#endif
#if defined FEATURE_WLAN_ESE
        case eWNI_SME_ESE_ADJACENT_AP_REPORT:
#endif
#ifdef WLAN_FEATURE_VOWIFI_11R
        case eWNI_SME_FT_UPDATE_KEY:
        case eWNI_SME_FT_PRE_AUTH_REQ:
        case eWNI_SME_FT_AGGR_QOS_REQ:
#endif
        case eWNI_SME_ADD_STA_SELF_REQ:
        case eWNI_SME_DEL_STA_SELF_REQ:
        case eWNI_SME_REGISTER_MGMT_FRAME_REQ:
        case eWNI_SME_UPDATE_NOA:
        case eWNI_SME_CLEAR_DFS_CHANNEL_LIST:
        case eWNI_SME_STA_STAT_REQ:
        case eWNI_SME_AGGR_STAT_REQ:
        case eWNI_SME_GLOBAL_STAT_REQ:
        case eWNI_SME_STAT_SUMM_REQ:
        case eWNI_SME_GET_STATISTICS_REQ:
#if defined WLAN_FEATURE_VOWIFI_11R || defined FEATURE_WLAN_ESE || defined(FEATURE_WLAN_LFR)
        case eWNI_SME_GET_ROAM_RSSI_REQ:
#endif
#if defined(FEATURE_WLAN_ESE) && defined(FEATURE_WLAN_ESE_UPLOAD)
        case eWNI_SME_GET_TSM_STATS_REQ:
#endif /* FEATURE_WLAN_ESE && FEATURE_WLAN_ESE_UPLOAD */
        case eWNI_SME_MAC_SPOOF_ADDR_IND:
            // These messages are from HDD
            limProcessNormalHddMsg(pMac, limMsg, false);   //no need to response to hdd
            break;

        //Power Save Messages From HDD
        case eWNI_PMC_PWR_SAVE_CFG:
        case eWNI_PMC_ENTER_BMPS_REQ:
        case eWNI_PMC_EXIT_BMPS_REQ:
        case eWNI_PMC_ENTER_IMPS_REQ:
        case eWNI_PMC_EXIT_IMPS_REQ:
        case eWNI_PMC_ENTER_UAPSD_REQ:
        case eWNI_PMC_EXIT_UAPSD_REQ:
        case eWNI_PMC_ENTER_WOWL_REQ:
        case eWNI_PMC_EXIT_WOWL_REQ:
        case eWNI_PMC_WOWL_ADD_BCAST_PTRN:
        case eWNI_PMC_WOWL_DEL_BCAST_PTRN:
            pmmProcessMessage(pMac, limMsg);
            break;

        case eWNI_PMC_SMPS_STATE_IND :
        {
            if(limMsg->bodyptr){
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            }
        }
            break;
        case eWNI_SME_SEND_ACTION_FRAME_IND:
            limSendP2PActionFrame(pMac, limMsg);
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
        case eWNI_SME_ABORT_REMAIN_ON_CHAN_IND:
            limAbortRemainOnChan(pMac);
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;

        case SIR_HAL_P2P_NOA_START_IND:
        {
            tpPESession psessionEntry = &pMac->lim.gpSession[0];
            tANI_U8  i;
            tANI_U8 p2pGOExists = 0;

            limLog(pMac, LOG1, "LIM received NOA start %x", limMsg->type);

            /* Since insert NOA is done and NOA start msg received, we should deactivate the Insert NOA timer */
            limDeactivateAndChangeTimer(pMac, eLIM_INSERT_SINGLESHOT_NOA_TIMER);

            for(i=0; i < pMac->lim.maxBssId; i++)
            {
                psessionEntry = &pMac->lim.gpSession[i];
                if   ( (psessionEntry != NULL) && (psessionEntry->valid) &&
                    (psessionEntry->pePersona == VOS_P2P_GO_MODE))
                { //Save P2P NOA start attributes for P2P Go persona
                    p2pGOExists = 1;
                    vos_mem_copy(&psessionEntry->p2pGoPsNoaStartInd, limMsg->bodyptr,
                                 sizeof(tSirP2PNoaStart));
                    if (psessionEntry->p2pGoPsNoaStartInd.status != eHAL_STATUS_SUCCESS)
                    {
                        limLog(pMac, LOGW, FL("GO NOA start failure status %d reported by FW."
                            " - still go ahead with deferred sme req. This is just info"),
                            psessionEntry->p2pGoPsNoaStartInd.status);
                    }
                    break;
                }
            }

            if (p2pGOExists == 0)
            {
                limLog(pMac, LOGW, FL("By the time, we received NOA start, GO is already removed."
                        " - still go ahead with deferred sme req. This is just info"));
            }

            /* We received the NOA start indication. Now we can send down the SME request which requires off-channel operation */
            limProcessRegdDefdSmeReqAfterNOAStart(pMac);
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
         }
            break;
#ifdef FEATURE_WLAN_TDLS
        case SIR_HAL_TDLS_IND:
        {
            tSirTdlsInd  *pTdlsInd = (tpSirTdlsInd)limMsg->bodyptr ;
            tpDphHashNode pStaDs = NULL ;
            tpPESession psessionEntry = NULL;
            tANI_U8             sessionId;
            if((psessionEntry = peFindSessionByStaId(pMac,pTdlsInd->staIdx,&sessionId))== NULL)
            {
               limLog(pMac, LOG1, FL("session does not exist for given bssId\n"));
               vos_mem_free(limMsg->bodyptr);
               limMsg->bodyptr = NULL;
               return;
            }
            if ((pStaDs = dphGetHashEntry(pMac, pTdlsInd->assocId, &psessionEntry->dph.dphHashTable)) == NULL)
            {
               limLog(pMac, LOG1, FL("pStaDs Does not exist for given staId\n"));
               vos_mem_free(limMsg->bodyptr);
               limMsg->bodyptr = NULL;
               return;
            }

            if ((STA_ENTRY_TDLS_PEER == pStaDs->staType))
            {
                limLog(pMac, LOGE,
                       FL("received TDLS Indication from the Firmware with Reason Code %d "),
                       pTdlsInd->reasonCode);
                limSendSmeTDLSDelStaInd(pMac, pStaDs, psessionEntry,
                                        pTdlsInd->reasonCode);
            }
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
         }
         break;
#endif
        case SIR_HAL_P2P_NOA_ATTR_IND:
            {
                tpPESession psessionEntry = &pMac->lim.gpSession[0];  
                tANI_U8  i;
                
                limLog(pMac, LOGW, FL("Received message Noa_ATTR %x"), limMsg->type);
                for(i=0; i < pMac->lim.maxBssId; i++)
                {
                    psessionEntry = &pMac->lim.gpSession[i];
                    if   ( (psessionEntry != NULL) && (psessionEntry->valid) && 
                        (psessionEntry->pePersona == VOS_P2P_GO_MODE))
                    { //Save P2P attributes for P2P Go persona
                    
                        vos_mem_copy(&psessionEntry->p2pGoPsUpdate, limMsg->bodyptr,
                                     sizeof(tSirP2PNoaAttr));

                        limLog(pMac, LOG2, FL(" &psessionEntry->bssId "
                                     MAC_ADDRESS_STR " ctWin=%d oppPsFlag=%d"),
                                     MAC_ADDR_ARRAY(psessionEntry->bssId),
                                     psessionEntry->p2pGoPsUpdate.ctWin,
                                     psessionEntry->p2pGoPsUpdate.oppPsFlag);

                        limLog(pMac, LOG2, FL(" uNoa1IntervalCnt=%d uNoa1Duration=%d uNoa1Interval=%d uNoa1StartTime=%d"),
                                     psessionEntry->p2pGoPsUpdate.uNoa1IntervalCnt,
                                     psessionEntry->p2pGoPsUpdate.uNoa1Duration,
                                     psessionEntry->p2pGoPsUpdate.uNoa1Interval,
                                     psessionEntry->p2pGoPsUpdate.uNoa1StartTime);

                        
                        break;
                    }
                }
                
            }
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            
            break;

            
        /* eWNI_SME_PRE_CHANNEL_SWITCH_FULL_POWER Message comes after the
         * device comes out of full power for the full power request sent 
         * because of channel switch with switch count as 0, so call the same 
         * function used in timeout case(i.e SIR_LIM_CHANNEL_SWITCH_TIMEOUT) 
         * for switching the channel*/
        case eWNI_SME_PRE_CHANNEL_SWITCH_FULL_POWER:
            if ( !tx_timer_running(&pMac->lim.limTimers.gLimChannelSwitchTimer) )
            {  
                limProcessChannelSwitchTimeout(pMac);
            }
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;

        //Power Save Related Messages From HAL
        case WDA_ENTER_BMPS_RSP:
        case WDA_EXIT_BMPS_RSP:
        case WDA_EXIT_BMPS_IND:
        case WDA_ENTER_IMPS_RSP:
        case WDA_EXIT_IMPS_RSP:
        case WDA_ENTER_UAPSD_RSP:
        case WDA_EXIT_UAPSD_RSP:
        case WDA_WOWL_ENTER_RSP:
        case WDA_WOWL_EXIT_RSP:
            pmmProcessMessage(pMac, limMsg);
            break;

        case WDA_LOW_RSSI_IND:
            //limHandleLowRssiInd(pMac);
            break;

        case WDA_BMPS_STATUS_IND:
            limHandleBmpsStatusInd(pMac);
            break;

        case WDA_MISSED_BEACON_IND:
            limHandleMissedBeaconInd(pMac, limMsg);
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            break;
        case WDA_MIC_FAILURE_IND:
           limMicFailureInd(pMac, limMsg);
           vos_mem_free(limMsg->bodyptr);
           limMsg->bodyptr = NULL;
           break;
    


        case SIR_LIM_ADDTS_RSP_TIMEOUT:
            limProcessSmeReqMessages(pMac,limMsg);
            break;
#ifdef FEATURE_WLAN_ESE
        case SIR_LIM_ESE_TSM_TIMEOUT:
#ifndef FEATURE_WLAN_ESE_UPLOAD
            limProcessTsmTimeoutHandler(pMac,limMsg);
#endif /* FEATURE_WLAN_ESE_UPLOAD */
            break;
        case WDA_TSM_STATS_RSP:
#ifdef FEATURE_WLAN_ESE_UPLOAD
            limSendSmePEEseTsmRsp(pMac, (tAniGetTsmStatsRsp *)limMsg->bodyptr);
#else
            limProcessHalEseTsmRsp(pMac, limMsg);
#endif /* FEATURE_WLAN_ESE_UPLOAD */
            break;
#endif
        case WDA_ADD_TS_RSP:
            limProcessHalAddTsRsp(pMac, limMsg);
            break;

        case SIR_LIM_DEL_TS_IND:
          limProcessDelTsInd(pMac, limMsg);
            break;
        case SIR_LIM_ADD_BA_IND:
            limProcessAddBaInd(pMac, limMsg);
            break;
        case SIR_LIM_DEL_BA_ALL_IND:
            limDelAllBASessions(pMac);
            break;
        case SIR_LIM_DEL_BA_IND:
            limProcessMlmHalBADeleteInd( pMac, limMsg );
            break;

         case SIR_LIM_BEACON_GEN_IND: {

                if( pMac->lim.gLimSystemRole != eLIM_AP_ROLE )
                    schProcessPreBeaconInd(pMac, limMsg);    

                }
                break;

        case SIR_LIM_DELETE_STA_CONTEXT_IND:
            limDeleteStaContext(pMac, limMsg);
            break;

        case SIR_LIM_MIN_CHANNEL_TIMEOUT:
        case SIR_LIM_MAX_CHANNEL_TIMEOUT:
        case SIR_LIM_PERIODIC_PROBE_REQ_TIMEOUT:
        case SIR_LIM_JOIN_FAIL_TIMEOUT:
        case SIR_LIM_PERIODIC_JOIN_PROBE_REQ_TIMEOUT:
        case SIR_LIM_AUTH_FAIL_TIMEOUT:
        case SIR_LIM_AUTH_RSP_TIMEOUT:
        case SIR_LIM_ASSOC_FAIL_TIMEOUT:
        case SIR_LIM_REASSOC_FAIL_TIMEOUT:
#ifdef WLAN_FEATURE_VOWIFI_11R
        case SIR_LIM_FT_PREAUTH_RSP_TIMEOUT:
#endif
        case SIR_LIM_REMAIN_CHN_TIMEOUT:
        case SIR_LIM_INSERT_SINGLESHOT_NOA_TIMEOUT:
        case SIR_LIM_DISASSOC_ACK_TIMEOUT:
        case SIR_LIM_DEAUTH_ACK_TIMEOUT:
        case SIR_LIM_CONVERT_ACTIVE_CHANNEL_TO_PASSIVE:
        case SIR_LIM_AUTH_RETRY_TIMEOUT:
            // These timeout messages are handled by MLM sub module

            limProcessMlmReqMessages(pMac,
                                     limMsg);

            break;

        case SIR_LIM_HEART_BEAT_TIMEOUT:
            /** check if heart beat failed, even if one Beacon
                    * is rcvd within the Heart Beat interval continue
                  * normal processing
                    */

            #if 0 
            PELOG1(limLog(pMac, LOG1, FL("Heartbeat timeout, SME %d, MLME %d, #bcn %d"),
                   pMac->lim.gLimSmeState, pMac->lim.gLimMlmState,
                   pMac->lim.gLimRxedBeaconCntDuringHB);)

            if(pMac->lim.gLimSystemRole == eLIM_STA_IN_IBSS_ROLE)
                limIbssHeartBeatHandle(pMac); //HeartBeat for peers.
            else
                /**
                        * Heartbeat failure occurred on STA
                      * This is handled by LMM sub module.
                        */
                limHandleHeartBeatFailure(pMac);

            break;
            #endif //TO SUPPORT BT-AMP
            if (limIsSystemInScanState(pMac))
            {
                // System is in DFS (Learn) mode
                // Defer processsing this message
                if (limDeferMsg(pMac, limMsg) != TX_SUCCESS)
                {
                    PELOGE(limLog(pMac, LOGE, FL("Unable to Defer message(0x%X) limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                        limMsg->type, pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                        pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
                    limLogSessionStates(pMac);
                }
            }
            else
            {
                 if (NULL == limMsg->bodyptr)
                 {
                     limHandleHeartBeatTimeout(pMac);
                 }
                 else
                 {
                     limHandleHeartBeatTimeoutForSession(pMac, (tpPESession)limMsg->bodyptr);
                 }
            }
            break;

        case SIR_LIM_PROBE_HB_FAILURE_TIMEOUT:
            limHandleHeartBeatFailureTimeout(pMac);            
            break;

        case SIR_LIM_CHANNEL_SCAN_TIMEOUT:
            /**
             * Background scan timeout occurred on STA.
             * This is handled by LMM sub module.
             */
             limDeactivateAndChangeTimer(pMac, eLIM_BACKGROUND_SCAN_TIMER);

            //We will do background scan even in bcnps mode
            //if (pMac->sys.gSysEnableScanMode)
            pMac->lim.gLimReportBackgroundScanResults = FALSE;
            limTriggerBackgroundScan(pMac);
            break;

        case SIR_LIM_CNF_WAIT_TIMEOUT:

            /*
            ** Does not receive CNF or dummy packet
            **/
            limHandleCnfWaitTimeout(pMac, (tANI_U16) limMsg->bodyval);

            break;

        case SIR_LIM_KEEPALIVE_TIMEOUT:
            limSendKeepAliveToPeer(pMac);

            break;

        case SIR_LIM_RETRY_INTERRUPT_MSG:
            // Message from ISR upon TFP's max retry limit interrupt

            break;

        case SIR_LIM_INV_KEY_INTERRUPT_MSG:
            // Message from ISR upon SP's Invalid session key interrupt

            break;

        case SIR_LIM_KEY_ID_INTERRUPT_MSG:
            // Message from ISR upon SP's Invalid key ID interrupt

            break;

        case SIR_LIM_REPLAY_THRES_INTERRUPT_MSG:
            // Message from ISR upon SP's Replay threshold interrupt

            break;

        case SIR_LIM_CHANNEL_SWITCH_TIMEOUT:
            limProcessChannelSwitchTimeout(pMac);
            break;

        case SIR_LIM_QUIET_TIMEOUT:
            limProcessQuietTimeout(pMac);
            break;

        case SIR_LIM_QUIET_BSS_TIMEOUT:
            limProcessQuietBssTimeout(pMac);
            break;

        case SIR_LIM_UPDATE_OLBC_CACHEL_TIMEOUT:
            limHandleUpdateOlbcCache(pMac);
            break;
#if 0
        case SIR_LIM_WPS_OVERLAP_TIMEOUT:
            limProcessWPSOverlapTimeout(pMac);
            break;
#endif


#ifdef FEATURE_WLAN_TDLS_INTERNAL
        /*
         * Here discovery timer expires, now we can go ahead and collect all
         * the dicovery responses PE has process till now and send this
         * responses to SME..
         */
        case SIR_LIM_TDLS_DISCOVERY_RSP_WAIT:
        {
            //fetch the sessionEntry based on the sessionId
            tpPESession psessionEntry = peFindSessionBySessionId(pMac, 
                         pMac->lim.limTimers.gLimTdlsDisRspWaitTimer.sessionId) ;
            if(NULL == psessionEntry) 
            {
              limLog(pMac, LOGP,FL("Session Does not exist for given sessionID %d"), pMac->lim.limTimers.gLimTdlsDisRspWaitTimer.sessionId);
              return;
            }
            
            VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
                                ("Discovery Rsp timer expires ")) ;
#if 0 // TDLS_hklee: D13 no need to open Addr2 unknown data packet 
            /* restore RXP filters */
            limSetLinkState(pMac, eSIR_LINK_FINISH_TDLS_DISCOVERY_STATE,
                                            psessionEntry->bssId) ;
#endif
            limSendSmeTdlsDisRsp(pMac, eSIR_SUCCESS, 
                                eWNI_SME_TDLS_DISCOVERY_START_RSP) ;
            break ;
        }

        /*
         * we initiated link setup and did not receive TDLS setup rsp
         * from TDLS peer STA, send failure RSP to SME.
         */
        case SIR_LIM_TDLS_LINK_SETUP_RSP_TIMEOUT:
        {
            tANI_U8 *peerMac = (tANI_U8 *)limMsg->bodyval ;
            tLimTdlsLinkSetupPeer *setupPeer = NULL ;
 
            VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_ERROR,
                                ("TDLS setup rsp timer expires ")) ;
            VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_INFO,
                      ("TDLS setup rsp timer expires for peer:"
                      MAC_ADDRESS_STR), MAC_ADDR_ARRAY(peerMac));

            limTdlsFindLinkPeer(pMac, peerMac, &setupPeer) ;
            if(NULL != setupPeer)
            {
                limTdlsDelLinkPeer( pMac, peerMac) ;
            }

            limSendSmeTdlsLinkStartRsp(pMac, eSIR_FAILURE, peerMac, 
                                            eWNI_SME_TDLS_LINK_START_RSP) ;
            break ;
        }
        case SIR_LIM_TDLS_LINK_SETUP_CNF_TIMEOUT:
        {
            tANI_U8 *peerMac = (tANI_U8 *)limMsg->bodyval ;
            tLimTdlsLinkSetupPeer *setupPeer = NULL ;

            VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_ERROR,
                                ("TDLS setup CNF timer expires ")) ;
            VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_INFO,
                      ("TDLS setup CNF timer expires for peer: "
                       MAC_ADDRESS_STR), MAC_ADDR_ARRAY(peerMac));
            limTdlsFindLinkPeer(pMac, peerMac, &setupPeer) ;
            if(NULL != setupPeer)
            {
                limTdlsDelLinkPeer( pMac, peerMac) ;
            }
            break ;
        }
#endif   /* FEATURE_WLAN_TDLS TIMER */
        case WDA_ADD_BSS_RSP:
            limProcessMlmAddBssRsp( pMac, limMsg );
            break;

        case WDA_ADD_STA_RSP:

            //call a wrapper by paasing bodyptr, their get sessionID and and call proper function from there.
            limProcessAddStaRsp(pMac,limMsg);
            break;

        case WDA_DELETE_STA_RSP:
            limProcessMlmDelStaRsp(pMac, limMsg);
            break;

        case WDA_ADD_STA_SELF_RSP:
            limProcessAddStaSelfRsp(pMac, limMsg);
            break; 
        case WDA_DEL_STA_SELF_RSP:
            limProcessDelStaSelfRsp(pMac, limMsg);
            break;

        case WDA_DELETE_BSS_RSP:
            limHandleDeleteBssRsp(pMac,limMsg); //wrapper routine to handle delete bss response 
            break;

        case WDA_SET_BSSKEY_RSP:
        case WDA_SET_STA_BCASTKEY_RSP:
            limProcessMlmSetBssKeyRsp( pMac, limMsg );
            break;
        case WDA_SET_STAKEY_RSP:
            limProcessMlmSetStaKeyRsp( pMac, limMsg );
            break;
        case WDA_REMOVE_BSSKEY_RSP:
        case WDA_REMOVE_STAKEY_RSP:
            limProcessMlmRemoveKeyRsp( pMac, limMsg );
            break;
        case WDA_ADDBA_RSP:
            limProcessMlmHalAddBARsp( pMac, limMsg );
            break;

        case WDA_STA_STAT_RSP:
        case WDA_AGGR_STAT_RSP:
        case WDA_GLOBAL_STAT_RSP:
        case WDA_STAT_SUMM_RSP:
            limSendSmeStatsRsp ( pMac, limMsg->type, (void *)limMsg->bodyptr);
            break;

        case WDA_GET_STATISTICS_RSP:
            limSendSmePEStatisticsRsp ( pMac, limMsg->type, (void *)limMsg->bodyptr);
            break;
#if defined WLAN_FEATURE_VOWIFI_11R || defined FEATURE_WLAN_ESE || defined(FEATURE_WLAN_LFR)
        case WDA_GET_ROAM_RSSI_RSP:
            limSendSmePEGetRoamRssiRsp ( pMac, limMsg->type, (void *)limMsg->bodyptr);
            break;
#endif


        case WDA_SET_MIMOPS_RSP:            //limProcessSetMimoRsp(pMac, limMsg);
        case WDA_SET_TX_POWER_RSP:          //limProcessSetTxPowerRsp(pMac, limMsg);
        case WDA_GET_TX_POWER_RSP:          //limProcessGetTxPowerRsp(pMac, limMsg);
        case WDA_GET_NOISE_RSP:
            vos_mem_free((v_VOID_t*)limMsg->bodyptr);
            limMsg->bodyptr = NULL;
            //limProcessGetNoiseRsp(pMac, limMsg);
            break;

        case WDA_SET_MAX_TX_POWER_RSP:
#if defined WLAN_FEATURE_VOWIFI
            rrmSetMaxTxPowerRsp( pMac, limMsg );
#endif
            if(limMsg->bodyptr != NULL)
            {
               vos_mem_free((v_VOID_t*)limMsg->bodyptr);
               limMsg->bodyptr = NULL;
            }
            break;

       case SIR_LIM_ADDR2_MISS_IND:
       {
           limLog(pMac, LOGE,
                   FL("Addr2 mismatch interrupt received %X"),
                   limMsg->type);
           /*a message from HAL indicating addr2 mismatch interrupt occurred
             limMsg->bodyptr contains only pointer to 48-bit addr2 field*/
           //Dinesh fix this. the third parameter should be sessionentry.
           //limHandleUnknownA2IndexFrames(pMac, (void *)limMsg->bodyptr); 

           /*Free message body pointer*/ 
           vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
           limMsg->bodyptr = NULL;
           break;
       }

#ifdef WLAN_FEATURE_VOWIFI_11R
    case WDA_AGGR_QOS_RSP:
       limProcessFTAggrQoSRsp( pMac, limMsg );
       break;
#endif

    case WDA_SET_LINK_STATE_RSP:
       linkStateParams = (tLinkStateParams *)limMsg->bodyptr;
#if defined WLAN_FEATURE_VOWIFI_11R
       pSession = linkStateParams->session;
       if(linkStateParams->ft)
       {
          limSendReassocReqWithFTIEsMgmtFrame(pMac, 
                                              pSession->pLimMlmReassocReq,
                                              pSession); 
       }
#endif
       if( linkStateParams->callback )
       {
          linkStateParams->callback( pMac, linkStateParams->callbackArg );
       }
       vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
       limMsg->bodyptr = NULL;
       break;

#ifdef WLAN_FEATURE_PACKET_FILTERING
    case WDA_PACKET_COALESCING_FILTER_MATCH_COUNT_RSP:
        pmmProcessMessage(pMac, limMsg);
        break;
#endif // WLAN_FEATURE_PACKET_FILTERING

#ifdef WLAN_FEATURE_GTK_OFFLOAD
    case WDA_GTK_OFFLOAD_GETINFO_RSP:
        pmmProcessMessage(pMac, limMsg);
        break;
#endif // WLAN_FEATURE_GTK_OFFLOAD
    case eWNI_SME_SET_BCN_FILTER_REQ:
        {
#ifdef WLAN_ACTIVEMODE_OFFLOAD_FEATURE
            tpPESession     psessionEntry;
            tANI_U8 sessionId = (tANI_U8)limMsg->bodyval ;
            psessionEntry = &pMac->lim.gpSession[sessionId];
            if(psessionEntry != NULL && IS_ACTIVEMODE_OFFLOAD_FEATURE_ENABLE)
            {
               // sending beacon filtering information down to HAL
               if (limSendBeaconFilterInfo(pMac, psessionEntry) != eSIR_SUCCESS)
               {
                  limLog(pMac, LOGE, FL("Fail to send Beacon Filter Info "));
               }
            }
            vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
            limMsg->bodyptr = NULL;
#endif
        }
        break;
    case eWNI_SME_HT40_OBSS_SCAN_IND:
        {
            tpPESession     psessionEntry = NULL;
            tANI_U8         sessionId;
            tSirSmeHT40OBSSScanInd *ht40ScanInd =
                (tSirSmeHT40OBSSScanInd *)limMsg->bodyptr;

            psessionEntry = peFindSessionByBssid(pMac, ht40ScanInd->peerMacAddr,
                    &sessionId);

            if (psessionEntry != NULL)
            {
                if( IS_HT40_OBSS_SCAN_FEATURE_ENABLE &&
                        psessionEntry->htSupportedChannelWidthSet ==
                        WNI_CFG_CHANNEL_BONDING_MODE_ENABLE )
                {
                    VOS_TRACE(VOS_MODULE_ID_PE,VOS_TRACE_LEVEL_INFO,
                            "OBSS Scan Start Req: session id %d"
                            "htSupportedChannelWidthSet %d", psessionEntry->peSessionId,
                            psessionEntry->htSupportedChannelWidthSet);
                    limSendHT40OBSSScanInd(pMac, psessionEntry);
                }
                else
                {
                    VOS_TRACE(VOS_MODULE_ID_PE,VOS_TRACE_LEVEL_INFO,
                            "OBSS Scan not started: htSupportedChannelWidthSet- %d"
                            " session id %d", psessionEntry->htSupportedChannelWidthSet,
                            psessionEntry->peSessionId);
                }
            }
            else
            {
                VOS_TRACE(VOS_MODULE_ID_PE,VOS_TRACE_LEVEL_INFO,
                        "OBSS Scan not started: session id is NULL");
            }
            vos_mem_free(limMsg->bodyptr);
            limMsg->bodyptr = NULL;
        }
        break;
    case eWNI_SME_HT40_STOP_OBSS_SCAN_IND:
        {
           tpPESession     psessionEntry = NULL;
           tANI_U8 sessionId = (tANI_U8)limMsg->bodyval ;

           psessionEntry = &pMac->lim.gpSession[sessionId];
           /* Sending LIM STOP OBSS SCAN Indication
                     Stop command support is only for debugging purpose */
           if ( IS_HT40_OBSS_SCAN_FEATURE_ENABLE )
              limSendHT40OBSSStopScanInd(pMac, psessionEntry);
           else
              VOS_TRACE(VOS_MODULE_ID_PE,VOS_TRACE_LEVEL_ERROR,
                   "OBSS Scan Stop not started ");
        }
        break;
#ifdef WLAN_FEATURE_AP_HT40_24G
    case eWNI_SME_SET_HT_2040_MODE:
        limProcessSmeReqMessages(pMac, limMsg);
        vos_mem_free((v_VOID_t*)limMsg->bodyptr);
        limMsg->bodyptr = NULL;
        break;
#endif

#ifdef FEATURE_WLAN_TDLS
        case WDA_SET_TDLS_LINK_ESTABLISH_REQ_RSP:
        {
            tpPESession     psessionEntry;
            tANI_U8         sessionId;
            tTdlsLinkEstablishParams *pTdlsLinkEstablishParams;
            pTdlsLinkEstablishParams = (tTdlsLinkEstablishParams*) limMsg->bodyptr;

            if((psessionEntry = peFindSessionByStaId(pMac,
                                                     pTdlsLinkEstablishParams->staIdx,
                                                     &sessionId))== NULL)
            {
                limLog(pMac, LOGE, FL("session %u  does not exist.\n"), sessionId);
                /* Still send the eWNI_SME_TDLS_LINK_ESTABLISH_RSP message to SME
                   with session id as zero and status as FAILURE so, that message
                   queued in SME queue can be freed to prevent the SME cmd buffer leak */
                limSendSmeTdlsLinkEstablishReqRsp(pMac,
                                                  0,
                                                  NULL,
                                                  NULL,
                                                  eSIR_FAILURE);
            }
            else
            {
                limSendSmeTdlsLinkEstablishReqRsp(pMac,
                                                  psessionEntry->smeSessionId,
                                                  NULL,
                                                  NULL,
                                                  pTdlsLinkEstablishParams->status) ;
            }
            vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
            limMsg->bodyptr = NULL;
            break;
        }

        case WDA_SET_TDLS_CHAN_SWITCH_REQ_RSP:
        {
            tpPESession     psessionEntry;
            tANI_U8         sessionId;
            tTdlsChanSwitchParams *pTdlsChanSwitchParams;
            pTdlsChanSwitchParams = (tTdlsChanSwitchParams*) limMsg->bodyptr;

            if((psessionEntry = peFindSessionByStaId(pMac,
                                                     pTdlsChanSwitchParams->staIdx,
                                                     &sessionId))== NULL)
            {
                limLog(pMac, LOGE, FL("session %u  does not exist.\n"), sessionId);
                /* Still send the eWNI_SME_TDLS_LINK_ESTABLISH_RSP message to SME
                   with session id as zero and status as FAILURE so, that message
                   queued in SME queue can be freed to prevent the SME cmd buffer leak */
                limSendSmeTdlsChanSwitchReqRsp(pMac,
                                                  0,
                                                  NULL,
                                                  NULL,
                                                  eSIR_FAILURE);
            }
            else
            {
                limSendSmeTdlsChanSwitchReqRsp(pMac,
                                                  psessionEntry->smeSessionId,
                                                  NULL,
                                                  NULL,
                                                  pTdlsChanSwitchParams->status) ;
            }
            vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
            limMsg->bodyptr = NULL;
            break;
        }
#endif

    case WDA_RX_SCAN_EVENT:
        limProcessRxScanEvent(pMac, limMsg->bodyptr);
        break;

    case WDA_IBSS_PEER_INACTIVITY_IND:
    {
       limProcessIbssPeerInactivity(pMac, limMsg->bodyptr);
       vos_mem_free((v_VOID_t *)(limMsg->bodyptr));
       limMsg->bodyptr = NULL;
       break;
    }

    case WDA_SPOOF_MAC_ADDR_RSP:
       limProcessMlmSpoofMacAddrRsp(pMac, (tSirRetStatus)limMsg->bodyval);
       break;

    default:
        vos_mem_free((v_VOID_t*)limMsg->bodyptr);
        limMsg->bodyptr = NULL;
        // Unwanted messages
        // Log error
        limLog(pMac, LOGE,
                FL("Discarding unexpected message received %X"),
                limMsg->type);
        limPrintMsgName(pMac, LOGE, limMsg->type);
        break;

    } // switch (limMsg->type)

   PELOG2(limLog(pMac, LOG2, FL("Done Processing msgType = %d, sme state = %s, mlm state = %s"),
            limMsg->type, limSmeStateStr(pMac->lim.gLimSmeState),
            limMlmStateStr(pMac->lim.gLimMlmState));)

} /*** end limProcessMessages() ***/



/**
 * limProcessDeferredMessageQueue
 *
 *FUNCTION:
 * This function is called by LIM while exiting from Learn
 * mode. This function fetches messages posted to the LIM
 * deferred message queue limDeferredMsgQ.
 *
 *LOGIC:
 *
 *ASSUMPTIONS:
 * NA
 *
 *NOTE:
 * NA
 *
 * @param  pMac - Pointer to Global MAC structure
 * @return None
 */

void
limProcessDeferredMessageQueue(tpAniSirGlobal pMac)
{
    tSirMsgQ  limMsg = { 0, 0, 0 };

    tSirMsgQ *readMsg;
    tANI_U16  size;

    /*
    ** check any deferred messages need to be processed
    **/
    size = pMac->lim.gLimDeferredMsgQ.size;
    if (size > 0)
    {
        while ((readMsg = limReadDeferredMsgQ(pMac)) != NULL)
        {
            vos_mem_copy((tANI_U8*) &limMsg,
                    (tANI_U8*) readMsg, sizeof(tSirMsgQ));
            size--; 
            limProcessMessages(pMac, &limMsg);

            if((limIsSystemInScanState(pMac)) || (true != GET_LIM_PROCESS_DEFD_MESGS(pMac)) ||
                 (pMac->lim.gLimSystemInScanLearnMode))
                break;
        }
    }
} /*** end limProcessDeferredMessageQueue() ***/


/*
 * limProcessNormalHddMsg
 * Function: this function checks the current lim state and decide whether the message passed shall be deffered.
 * @param  pMac - Pointer to Global MAC structure
 *         pLimMsg -- the message need to be processed
 *         fRspReqd -- whether return result to hdd
 * @return None
 */
void limProcessNormalHddMsg(tpAniSirGlobal pMac, tSirMsgQ *pLimMsg, tANI_U8 fRspReqd)
{
    tANI_BOOLEAN fDeferMsg = eANI_BOOLEAN_TRUE;

    /* Added For BT-AMP Support */  
    if ((pMac->lim.gLimSystemRole == eLIM_AP_ROLE) ||(pMac->lim.gLimSystemRole == eLIM_BT_AMP_AP_ROLE )
                                                   ||(pMac->lim.gLimSystemRole == eLIM_BT_AMP_STA_ROLE)
                                                   ||(pMac->lim.gLimSystemRole == eLIM_UNKNOWN_ROLE))
    {
        /** This check is required only for the AP and in 2 cases.
         * 1. If we are in learn mode and we receive any of these messages,
         * you have to come out of scan and process the message, hence dont
         * defer the message here. In handler, these message could be defered
         * till we actually come out of scan mode.
         * 2. If radar is detected, you might have to defer all of these
         * messages except Stop BSS request/ Switch channel request. This
         * decision is also made inside its handler.
         *
         * Please be careful while using the flag fDeferMsg. Possibly you
         * might end up in an infinite loop.
         **/
        if (((pLimMsg->type == eWNI_SME_START_BSS_REQ) ||
             (pLimMsg->type == eWNI_SME_STOP_BSS_REQ) ||
             (pLimMsg->type == eWNI_SME_SWITCH_CHL_REQ) ||
             (pLimMsg->type == eWNI_SME_SWITCH_CHL_CB_SECONDARY_REQ) ||
             (pLimMsg->type == eWNI_SME_SWITCH_CHL_CB_PRIMARY_REQ)))
        {
            fDeferMsg = eANI_BOOLEAN_FALSE;
        }
    }

    /* limInsystemInscanState() refers the psessionEntry,  how to get session Entry????*/
    if (((pMac->lim.gLimAddtsSent) || (limIsSystemInScanState(pMac)) /*||
                (LIM_IS_RADAR_DETECTED(pMac))*/) && fDeferMsg)
    {
        // System is in DFS (Learn) mode or awaiting addts response
        // or if radar is detected, Defer processsing this message
        if (limDeferMsg(pMac, pLimMsg) != TX_SUCCESS)
        {
#ifdef WLAN_DEBUG            
            pMac->lim.numSme++;
#endif
            PELOGE(limLog(pMac, LOGE, FL("Unable to Defer message(0x%X) limSmeState %d (prev sme state %d) sysRole %d mlm state %d (prev mlm state %d)"),
                        pLimMsg->type, pMac->lim.gLimSmeState,  pMac->lim.gLimPrevSmeState,
                        pMac->lim.gLimSystemRole,  pMac->lim.gLimMlmState,  pMac->lim.gLimPrevMlmState);)
            limLogSessionStates(pMac);
            limPrintMsgName(pMac, LOGE, pLimMsg->type);
            // Release body
            vos_mem_free(pLimMsg->bodyptr);
            pLimMsg->bodyptr = NULL;
        }
    }
    else
    {
        if(fRspReqd)
        {
            // These messages are from HDD
            // Since these requests may also be generated
            // internally within LIM module, need to
            // distinquish and send response to host
            pMac->lim.gLimRspReqd = eANI_BOOLEAN_TRUE;
        }
#ifdef WLAN_DEBUG            
        pMac->lim.numSme++;
#endif
        if(limProcessSmeReqMessages(pMac, pLimMsg))
        {
            // Release body
            // limProcessSmeReqMessage consumed the buffer. We can free it.
            vos_mem_free(pLimMsg->bodyptr);
            pLimMsg->bodyptr = NULL;
        }
    }
}

void
handleHTCapabilityandHTInfo(struct sAniSirGlobal *pMac, tpPESession psessionEntry)
{
    tSirMacHTCapabilityInfo macHTCapabilityInfo;
    tSirMacHTParametersInfo macHTParametersInfo;
    tSirMacHTInfoField1 macHTInfoField1;
    tSirMacHTInfoField2 macHTInfoField2;
    tSirMacHTInfoField3 macHTInfoField3;
    tANI_U32  cfgValue;
    tANI_U8 *ptr;

    if (wlan_cfgGetInt(pMac, WNI_CFG_HT_CAP_INFO, &cfgValue) != eSIR_SUCCESS)
    {
        limLog(pMac, LOGP, FL("Fail to retrieve WNI_CFG_HT_CAP_INFO value"));
        return ;
    }
    ptr = (tANI_U8 *) &macHTCapabilityInfo;
    *((tANI_U16 *)ptr) =  (tANI_U16) (cfgValue & 0xffff);
    pMac->lim.gHTLsigTXOPProtection = (tANI_U8)macHTCapabilityInfo.lsigTXOPProtection;
    pMac->lim.gHTMIMOPSState = (tSirMacHTMIMOPowerSaveState) macHTCapabilityInfo.mimoPowerSave;
    pMac->lim.gHTGreenfield = (tANI_U8)macHTCapabilityInfo.greenField;
    pMac->lim.gHTMaxAmsduLength = (tANI_U8)macHTCapabilityInfo.maximalAMSDUsize;
    pMac->lim.gHTShortGI20Mhz = (tANI_U8)macHTCapabilityInfo.shortGI20MHz;
    pMac->lim.gHTShortGI40Mhz = (tANI_U8)macHTCapabilityInfo.shortGI40MHz;
    pMac->lim.gHTPSMPSupport = (tANI_U8)macHTCapabilityInfo.psmp;
    pMac->lim.gHTDsssCckRate40MHzSupport = (tANI_U8)macHTCapabilityInfo.dsssCckMode40MHz;

    if (wlan_cfgGetInt(pMac, WNI_CFG_HT_AMPDU_PARAMS, &cfgValue) != eSIR_SUCCESS)
    {
        limLog(pMac, LOGP, FL("Fail to retrieve WNI_CFG_HT_PARAM_INFO value"));
        return ;
    }
    ptr = (tANI_U8 *) &macHTParametersInfo;
    *ptr =  (tANI_U8) (cfgValue & 0xff);
    pMac->lim.gHTAMpduDensity = (tANI_U8)macHTParametersInfo.mpduDensity;
    pMac->lim.gHTMaxRxAMpduFactor = (tANI_U8)macHTParametersInfo.maxRxAMPDUFactor;

    // Get HT IE Info
    if (wlan_cfgGetInt(pMac, WNI_CFG_HT_INFO_FIELD1, &cfgValue) != eSIR_SUCCESS)
    {
        limLog(pMac, LOGP, FL("Fail to retrieve WNI_CFG_HT_INFO_FIELD1 value"));
        return ;
    }
    ptr = (tANI_U8 *) &macHTInfoField1;
    *((tANI_U8 *)ptr) =  (tANI_U8) (cfgValue & 0xff);
    pMac->lim.gHTServiceIntervalGranularity = (tANI_U8)macHTInfoField1.serviceIntervalGranularity;
    pMac->lim.gHTControlledAccessOnly = (tANI_U8)macHTInfoField1.controlledAccessOnly;
    pMac->lim.gHTRifsMode = (tANI_U8)macHTInfoField1.rifsMode;

    if (wlan_cfgGetInt(pMac, WNI_CFG_HT_INFO_FIELD2, &cfgValue) != eSIR_SUCCESS)
    {
        limLog(pMac, LOGP, FL("Fail to retrieve WNI_CFG_HT_INFO_FIELD2 value"));
        return ;
    }
    ptr = (tANI_U8 *) &macHTInfoField2;
    *((tANI_U16 *)ptr) = (tANI_U16) (cfgValue & 0xffff);
    pMac->lim.gHTOperMode = (tSirMacHTOperatingMode) macHTInfoField2.opMode;

    if (wlan_cfgGetInt(pMac, WNI_CFG_HT_INFO_FIELD3, &cfgValue) != eSIR_SUCCESS)
    {
        limLog(pMac, LOGP, FL("Fail to retrieve WNI_CFG_HT_INFO_FIELD3 value"));
        return ;
    }
    ptr = (tANI_U8 *) &macHTInfoField3;
    *((tANI_U16 *)ptr) = (tANI_U16) (cfgValue & 0xffff);
    pMac->lim.gHTPCOActive = (tANI_U8)macHTInfoField3.pcoActive;
    pMac->lim.gHTPCOPhase = (tANI_U8)macHTInfoField3.pcoPhase;
    pMac->lim.gHTSecondaryBeacon = (tANI_U8)macHTInfoField3.secondaryBeacon;
    pMac->lim.gHTDualCTSProtection = (tANI_U8)macHTInfoField3.dualCTSProtection;
    pMac->lim.gHTSTBCBasicMCS = (tANI_U8)macHTInfoField3.basicSTBCMCS;

    /* The lim globals for channelwidth and secondary chnl have been removed and should not be used during no session;
     * instead direct cfg is read and used when no session for transmission of mgmt frames (same as old);
     * For now, we might come here during init and join with sessionEntry = NULL; in that case just fill the globals which exist
     * Sessionized entries values will be filled in join or add bss req. The ones which are missed in join are filled below
     */
    if (psessionEntry != NULL)
    {
        psessionEntry->htCapability =
                  IS_DOT11_MODE_HT(psessionEntry->dot11mode);
        psessionEntry->beaconParams.fLsigTXOPProtectionFullSupport =
                  (tANI_U8)macHTInfoField3.lsigTXOPProtectionFullSupport;
       limInitOBSSScanParams(pMac, psessionEntry);
    }
}

void limLogSessionStates(tpAniSirGlobal pMac)
{
#ifdef WLAN_DEBUG
    int i;

    for(i = 0; i < pMac->lim.maxBssId; i++)
    {
        if(pMac->lim.gpSession[i].valid)
        {
            limLog(pMac, LOG1, FL("Session[%d] sysRole(%d) limSmeState %d "
                    "(prev sme state %d) mlm state %d (prev mlm state %d)"),
                   i, pMac->lim.gpSession[i].limSystemRole,
                   pMac->lim.gpSession[i].limSmeState,
                   pMac->lim.gpSession[i].limPrevSmeState,
                   pMac->lim.gpSession[i].limMlmState,
                   pMac->lim.gpSession[i].limPrevMlmState);
        }
    }
#endif //ifdef WLAN_DEBUG
}