/*--------------------------------------------------------------------------
\brief peFindSessionByBssid() - looks up the PE session given the BSSID.
This function returns the session context and the session ID if the session
corresponding to the given BSSID is found in the PE session table.
\param pMac - pointer to global adapter context
\param bssid - BSSID of the session
\param sessionId -session ID is returned here, if session is found.
\return tpPESession - pointer to the session context or NULL if session is not found.
\sa
--------------------------------------------------------------------------*/
tpPESession peFindSessionByBssid(tpAniSirGlobal pMac, tANI_U8* bssid, tANI_U8* sessionId)
{
tANI_U8 i;
for(i =0; i < pMac->lim.maxBssId; i++)
{
/* If BSSID matches return corresponding tables address*/
if( (pMac->lim.gpSession[i].valid) && (sirCompareMacAddr(pMac->lim.gpSession[i].bssId, bssid)))
{
*sessionId = i;
return(&pMac->lim.gpSession[i]);
}
}
limLog(pMac, LOG4, FL("Session lookup fails for BSSID: \n "));
limPrintMacAddr(pMac, bssid, LOG4);
return(NULL);
}
void
limProcessBeaconFrame(tpAniSirGlobal pMac, tANI_U8 *pRxPacketInfo,tpPESession psessionEntry)
{
tpSirMacMgmtHdr pHdr;
tSchBeaconStruct *pBeacon;
pMac->lim.gLimNumBeaconsRcvd++;
/* here is it required to increment session specific heartBeat beacon counter */
pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
limLog(pMac, LOG2, FL("Received Beacon frame with length=%d from "),
WDA_GET_RX_MPDU_LEN(pRxPacketInfo));
limPrintMacAddr(pMac, pHdr->sa, LOG2);
if (!pMac->fScanOffload)
{
if (limDeactivateMinChannelTimerDuringScan(pMac) != eSIR_SUCCESS)
return;
}
/**
* Expect Beacon only when
* 1. STA is in Scan mode waiting for Beacon/Probe response or
* 2. STA is waiting for Beacon/Probe Respose Frame
* to announce join success.
* 3. STA/AP is in Learn mode
*/
if ((pMac->lim.gLimMlmState == eLIM_MLM_WT_PROBE_RESP_STATE) ||
(pMac->lim.gLimMlmState == eLIM_MLM_PASSIVE_SCAN_STATE) ||
(pMac->lim.gLimMlmState == eLIM_MLM_LEARN_STATE) ||
(psessionEntry->limMlmState == eLIM_MLM_WT_JOIN_BEACON_STATE)
|| pMac->fScanOffload
)
{
pBeacon = vos_mem_malloc(sizeof(tSchBeaconStruct));
if ( NULL == pBeacon )
{
limLog(pMac, LOGE, FL("Unable to allocate memory in limProcessBeaconFrame") );
return;
}
// Parse received Beacon
if (sirConvertBeaconFrame2Struct(pMac, (tANI_U8 *) pRxPacketInfo,
pBeacon) != eSIR_SUCCESS)
{
// Received wrongly formatted/invalid Beacon.
// Ignore it and move on.
limLog(pMac, LOGW,
FL("Received invalid Beacon in state %d"),
psessionEntry->limMlmState);
limPrintMlmState(pMac, LOGW, psessionEntry->limMlmState);
if ((!psessionEntry->currentBssBeaconCnt) &&
(sirCompareMacAddr( psessionEntry->bssId, pHdr->sa)))
limParseBeaconForTim(pMac, (tANI_U8 *) pRxPacketInfo, psessionEntry);
vos_mem_free(pBeacon);
return;
}
/*during scanning, when any session is active, and beacon/Pr belongs to
one of the session, fill up the following, TBD - HB couter */
if ((!psessionEntry->lastBeaconDtimPeriod) &&
(sirCompareMacAddr( psessionEntry->bssId, pBeacon->bssid)))
{
vos_mem_copy(( tANI_U8* )&psessionEntry->lastBeaconTimeStamp,
( tANI_U8* )pBeacon->timeStamp, sizeof(tANI_U64) );
psessionEntry->lastBeaconDtimCount = pBeacon->tim.dtimCount;
psessionEntry->lastBeaconDtimPeriod= pBeacon->tim.dtimPeriod;
psessionEntry->currentBssBeaconCnt++;
}
MTRACE(macTrace(pMac, TRACE_CODE_RX_MGMT_TSF, 0, pBeacon->timeStamp[0]);)