static tANI_U8 limIsBackgroundScanAllowed(tpAniSirGlobal pMac)
{
if (limIsSystemInScanState(pMac) ||
(pMac->lim.gLimBackgroundScanDisable) ||
(pMac->lim.gLimForceBackgroundScanDisable) ||
(pMac->lim.gLimBackgroundScanTerminate))
return false;
if (pMac->lim.gLimSystemRole == eLIM_STA_IN_IBSS_ROLE)
{
if (pMac->lim.gLimSmeState != eLIM_SME_NORMAL_STATE)
return false;
return true;
}
if ( (pMac->lim.gLimSystemRole == eLIM_STA_ROLE) && (pMac->lim.gLimSmeState != eLIM_SME_LINK_EST_STATE) )
return false;
if ((! (pMac->lim.gLimSmeState == eLIM_SME_IDLE_STATE) ) &&
(! (pMac->lim.gLimSmeState == eLIM_SME_JOIN_FAILURE_STATE) ) &&
(! (pMac->lim.gLimSmeState == eLIM_SME_LINK_EST_STATE) ) )
return false;
return true;
}
/** -----------------------------------------------------------
\fn limIsBackgroundScanAllowed
\brief This function determines if background scan should be
\ allowed. It is called by limTriggerBackgroundScan().
\param tpAniSirGlobal pMac
\return none
\ ------------------------------------------------------------- */
static tANI_U8 limIsBackgroundScanAllowed(tpAniSirGlobal pMac)
{
// if we are in the middle of a scan already, skip the background scan
if (limIsSystemInScanState(pMac) ||
(pMac->lim.gLimBackgroundScanDisable) ||
(pMac->lim.gLimForceBackgroundScanDisable) ||
(pMac->lim.gLimBackgroundScanTerminate))
return false;
//need to do background scan in IBSS mode.
if (pMac->lim.gLimSystemRole == eLIM_STA_IN_IBSS_ROLE)
{
if (pMac->lim.gLimSmeState != eLIM_SME_NORMAL_STATE)
return false;
return true;
}
// If station is not in link established state, then skip background scan
if ( (pMac->lim.gLimSystemRole == eLIM_STA_ROLE) && (pMac->lim.gLimSmeState != eLIM_SME_LINK_EST_STATE) )
return false;
/* now that we have checked for scan state, check for other transitional
* states which should not be interrupted by scans
*/
if ((! (pMac->lim.gLimSmeState == eLIM_SME_IDLE_STATE) ) &&
(! (pMac->lim.gLimSmeState == eLIM_SME_JOIN_FAILURE_STATE) ) &&
(! (pMac->lim.gLimSmeState == eLIM_SME_LINK_EST_STATE) ) )
return false;
return true;
}
/**
* sysBbtProcessMessageCore
*
* FUNCTION:
* Process BBT messages
*
* LOGIC:
*
* ASSUMPTIONS:
*
* NOTE:
*
* @param tpAniSirGlobal A pointer to MAC params instance
* @param pMsg message pointer
* @param tANI_U32 type
* @param tANI_U32 sub type
* @return None
*/
tSirRetStatus
sysBbtProcessMessageCore(tpAniSirGlobal pMac, tpSirMsgQ pMsg, tANI_U32 type,
tANI_U32 subType)
{
tANI_U32 framecount;
tSirRetStatus ret;
void* pBd;
tMgmtFrmDropReason dropReason;
vos_pkt_t *pVosPkt = (vos_pkt_t *)pMsg->bodyptr;
VOS_STATUS vosStatus =
WDA_DS_PeekRxPacketInfo( pVosPkt, (v_PVOID_t *)&pBd, VOS_FALSE );
pMac->sys.gSysBbtReceived++;
if ( !VOS_IS_STATUS_SUCCESS(vosStatus) )
{
goto fail;
}
sysLog(pMac, LOG3, FL("Rx Mgmt Frame Subtype: %d\n"), subType);
sirDumpBuf(pMac, SIR_SYS_MODULE_ID, LOG3, (tANI_U8 *)WDA_GET_RX_MAC_HEADER(pBd), WDA_GET_RX_MPDU_LEN(pBd));
sirDumpBuf(pMac, SIR_SYS_MODULE_ID, LOG3, WDA_GET_RX_MPDU_DATA(pBd), WDA_GET_RX_PAYLOAD_LEN(pBd));
pMac->sys.gSysFrameCount[type][subType]++;
framecount = pMac->sys.gSysFrameCount[type][subType];
if(type == SIR_MAC_MGMT_FRAME)
{
tpSirMacMgmtHdr mac_hdr;
/*
* Drop beacon frames in deferred state to avoid VOSS run out of
* message wrappers.
*/
if ((subType == SIR_MAC_MGMT_BEACON) &&
(!limIsSystemInScanState(pMac)) &&
(true != GET_LIM_PROCESS_DEFD_MESGS(pMac)) &&
!pMac->lim.gLimSystemInScanLearnMode) {
sysLog(pMac, LOG1,
FL("dropping received beacon in deffered state"));
goto fail;
}
dropReason = limIsPktCandidateForDrop(pMac, pBd, subType);
if (dropReason != eMGMT_DROP_NO_DROP) {
sysLog(pMac, LOG1,
FL("Mgmt Frame %d being dropped, reason: %d\n"),
subType, dropReason);
MTRACE(macTrace(pMac, TRACE_CODE_RX_MGMT_DROP, NO_SESSION, dropReason));
goto fail;
}
mac_hdr = WDA_GET_RX_MAC_HEADER(pBd);
if (subType == SIR_MAC_MGMT_ASSOC_REQ) {
sysLog(pMac, LOG1,
FL("ASSOC REQ frame allowed: da: " MAC_ADDRESS_STR ", sa: " MAC_ADDRESS_STR ", bssid: " MAC_ADDRESS_STR ", Assoc Req count so far: %d\n"),
MAC_ADDR_ARRAY(mac_hdr->da),
MAC_ADDR_ARRAY(mac_hdr->sa),
MAC_ADDR_ARRAY(mac_hdr->bssId),
pMac->sys.gSysFrameCount[type][subType]);
}
if (subType == SIR_MAC_MGMT_DEAUTH)
{
sysLog(pMac, LOG1,
FL("DEAUTH frame allowed: da: " MAC_ADDRESS_STR ", sa: " MAC_ADDRESS_STR ", bssid: " MAC_ADDRESS_STR ", DEAUTH count so far: %d\n"),
MAC_ADDR_ARRAY(mac_hdr->da),
MAC_ADDR_ARRAY(mac_hdr->sa),
MAC_ADDR_ARRAY(mac_hdr->bssId),
pMac->sys.gSysFrameCount[type][subType]);
}
if (subType == SIR_MAC_MGMT_DISASSOC)
{
sysLog(pMac, LOG1,
FL("DISASSOC frame allowed: da: " MAC_ADDRESS_STR ", sa: " MAC_ADDRESS_STR ", bssid: " MAC_ADDRESS_STR ", DISASSOC count so far: %d\n"),
MAC_ADDR_ARRAY(mac_hdr->da),
MAC_ADDR_ARRAY(mac_hdr->sa),
MAC_ADDR_ARRAY(mac_hdr->bssId),
pMac->sys.gSysFrameCount[type][subType]);
}
//Post the message to PE Queue
ret = (tSirRetStatus) limPostMsgApi(pMac, pMsg);
if (ret != eSIR_SUCCESS)
{
/* Print only one debug failure out of 512 failure messages */
if(pMac->sys.gSysBbtReceived & 0x0200)
sysLog(pMac, LOGE,
FL("posting to LIM2 failed, ret %d"), ret);
goto fail;
}
pMac->sys.gSysBbtPostedToLim++;
}
else if (type == SIR_MAC_DATA_FRAME)
{
#ifdef FEATURE_WLAN_ESE
sysLog(pMac, LOGW, FL("IAPP Frame...\n"));
//Post the message to PE Queue
ret = (tSirRetStatus) limPostMsgApi(pMac, pMsg);
if (ret != eSIR_SUCCESS)
{
sysLog(pMac, LOGE, FL("posting to LIM2 failed, ret %d\n"), ret);
goto fail;
}
pMac->sys.gSysBbtPostedToLim++;
#endif
}
else
{
sysLog(pMac, LOG3, "BBT received Invalid type %d subType %d "
"LIM state %X. BD dump is:\n",
type, subType, limGetSmeState(pMac));
sirDumpBuf(pMac, SIR_SYS_MODULE_ID, LOG3,
(tANI_U8 *) pBd, WLANHAL_RX_BD_HEADER_SIZE);
goto fail;
}
return eSIR_SUCCESS;
fail:
pMac->sys.gSysBbtDropped++;
return eSIR_FAILURE;
}