| /* |
| * Copyright (c) 2012-2016 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 limIbssPeerMgmt.cc contains the utility functions |
| * LIM uses to maintain peers in IBSS. |
| * Author: Chandra Modumudi |
| * Date: 03/12/04 |
| * History:- |
| * Date Modified by Modification Information |
| * -------------------------------------------------------------------- |
| */ |
| #include "palTypes.h" |
| #include "aniGlobal.h" |
| #include "sirCommon.h" |
| #include "wniCfg.h" |
| #include "limUtils.h" |
| #include "limAssocUtils.h" |
| #include "limStaHashApi.h" |
| #include "schApi.h" // schSetFixedBeaconFields for IBSS coalesce |
| #include "limSecurityUtils.h" |
| #include "limSendMessages.h" |
| #include "limSession.h" |
| #include "limIbssPeerMgmt.h" |
| #ifdef WLAN_FEATURE_RMC |
| #include "limRMC.h" |
| #endif |
| |
| |
| /** |
| * ibss_peer_find |
| * |
| *FUNCTION: |
| * This function is called while adding a context at |
| * DPH & Polaris for a peer in IBSS. |
| * If peer is found in the list, capabilities from the |
| * returned BSS description are used at DPH node & Polaris. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param macAddr - MAC address of the peer |
| * |
| * @return Pointer to peer node if found, else NULL |
| */ |
| |
| static tLimIbssPeerNode * |
| ibss_peer_find( |
| tpAniSirGlobal pMac, |
| tSirMacAddr macAddr) |
| { |
| tLimIbssPeerNode *pTempNode = pMac->lim.gLimIbssPeerList; |
| |
| while (pTempNode != NULL) |
| { |
| if (vos_mem_compare((tANI_U8 *) macAddr, |
| (tANI_U8 *) &pTempNode->peerMacAddr, |
| sizeof(tSirMacAddr))) |
| break; |
| pTempNode = pTempNode->next; |
| } |
| return pTempNode; |
| } /*** end ibss_peer_find() ***/ |
| |
| /** |
| * ibss_peer_add |
| * |
| *FUNCTION: |
| * This is called on a STA in IBSS upon receiving Beacon/ |
| * Probe Response from a peer. |
| * |
| *LOGIC: |
| * Node is always added to the front of the list |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @param pPeerNode - Pointer to peer node to be added to the list. |
| * |
| * @return None |
| */ |
| |
| static tSirRetStatus |
| ibss_peer_add(tpAniSirGlobal pMac, tLimIbssPeerNode *pPeerNode) |
| { |
| #ifdef ANI_SIR_IBSS_PEER_CACHING |
| tANI_U32 numIbssPeers = (2 * pMac->lim.maxStation); |
| |
| if (pMac->lim.gLimNumIbssPeers >= numIbssPeers) |
| { |
| /** |
| * Reached max number of peers to be maintained. |
| * Delete last entry & add new entry at the beginning. |
| */ |
| tLimIbssPeerNode *pTemp, *pPrev; |
| pTemp = pPrev = pMac->lim.gLimIbssPeerList; |
| while (pTemp->next != NULL) |
| { |
| pPrev = pTemp; |
| pTemp = pTemp->next; |
| } |
| if(pTemp->beacon) |
| { |
| vos_mem_free(pTemp->beacon); |
| } |
| |
| vos_mem_free(pTemp); |
| pPrev->next = NULL; |
| } |
| else |
| #endif |
| pMac->lim.gLimNumIbssPeers++; |
| |
| pPeerNode->next = pMac->lim.gLimIbssPeerList; |
| pMac->lim.gLimIbssPeerList = pPeerNode; |
| |
| return eSIR_SUCCESS; |
| |
| } /*** end limAddIbssPeerToList() ***/ |
| |
| /** |
| * ibss_peer_collect |
| * |
| *FUNCTION: |
| * This is called to collect IBSS peer information |
| * from received Beacon/Probe Response frame from it. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @param pBeacon - Parsed Beacon Frame structure |
| * @param pBD - Pointer to received BD |
| * @param pPeer - Pointer to IBSS peer node |
| * |
| * @return None |
| */ |
| |
| static void |
| ibss_peer_collect( |
| tpAniSirGlobal pMac, |
| tpSchBeaconStruct pBeacon, |
| tpSirMacMgmtHdr pHdr, |
| tLimIbssPeerNode *pPeer, |
| tpPESession psessionEntry) |
| { |
| vos_mem_copy(pPeer->peerMacAddr, pHdr->sa, sizeof(tSirMacAddr)); |
| |
| pPeer->capabilityInfo = pBeacon->capabilityInfo; |
| pPeer->extendedRatesPresent = pBeacon->extendedRatesPresent; |
| pPeer->edcaPresent = pBeacon->edcaPresent; |
| pPeer->wmeEdcaPresent = pBeacon->wmeEdcaPresent; |
| pPeer->wmeInfoPresent = pBeacon->wmeInfoPresent; |
| |
| if(IS_DOT11_MODE_HT(psessionEntry->dot11mode) && |
| (pBeacon->HTCaps.present)) |
| { |
| pPeer->htCapable = pBeacon->HTCaps.present; |
| vos_mem_copy((tANI_U8 *)pPeer->supportedMCSSet, |
| (tANI_U8 *)pBeacon->HTCaps.supportedMCSSet, |
| sizeof(pPeer->supportedMCSSet)); |
| pPeer->htGreenfield = (tANI_U8)pBeacon->HTCaps.greenField; |
| pPeer->htSupportedChannelWidthSet = ( tANI_U8 ) pBeacon->HTCaps.supportedChannelWidthSet; |
| pPeer->htMIMOPSState = (tSirMacHTMIMOPowerSaveState)pBeacon->HTCaps.mimoPowerSave; |
| pPeer->htMaxAmsduLength = ( tANI_U8 ) pBeacon->HTCaps.maximalAMSDUsize; |
| pPeer->htAMpduDensity = pBeacon->HTCaps.mpduDensity; |
| pPeer->htDsssCckRate40MHzSupport = (tANI_U8)pBeacon->HTCaps.dsssCckMode40MHz; |
| pPeer->htShortGI20Mhz = (tANI_U8)pBeacon->HTCaps.shortGI20MHz; |
| pPeer->htShortGI40Mhz = (tANI_U8)pBeacon->HTCaps.shortGI40MHz; |
| pPeer->htMaxRxAMpduFactor = pBeacon->HTCaps.maxRxAMPDUFactor; |
| pPeer->htSecondaryChannelOffset = pBeacon->HTInfo.secondaryChannelOffset; |
| } |
| |
| /* Collect peer VHT capabilities based on the received beacon from the peer */ |
| #ifdef WLAN_FEATURE_11AC |
| if (IS_BSS_VHT_CAPABLE(pBeacon->VHTCaps)) |
| { |
| pPeer->vhtSupportedChannelWidthSet = pBeacon->VHTOperation.chanWidth; |
| pPeer->vhtCapable = pBeacon->VHTCaps.present; |
| |
| // Collect VHT capabilities from beacon |
| vos_mem_copy((tANI_U8 *) &pPeer->VHTCaps, |
| (tANI_U8 *) &pBeacon->VHTCaps, |
| sizeof(tDot11fIEVHTCaps)); |
| } |
| #endif |
| pPeer->erpIePresent = pBeacon->erpPresent; |
| |
| vos_mem_copy((tANI_U8 *) &pPeer->supportedRates, |
| (tANI_U8 *) &pBeacon->supportedRates, |
| pBeacon->supportedRates.numRates + 1); |
| if (pPeer->extendedRatesPresent) |
| vos_mem_copy((tANI_U8 *) &pPeer->extendedRates, |
| (tANI_U8 *) &pBeacon->extendedRates, |
| pBeacon->extendedRates.numRates + 1); |
| else |
| pPeer->extendedRates.numRates = 0; |
| |
| // TBD copy EDCA parameters |
| // pPeer->edcaParams; |
| |
| pPeer->next = NULL; |
| } /*** end ibss_peer_collect() ***/ |
| |
| // handle change in peer qos/wme capabilities |
| static void |
| ibss_sta_caps_update( |
| tpAniSirGlobal pMac, |
| tLimIbssPeerNode *pPeerNode, |
| tpPESession psessionEntry) |
| { |
| tANI_U16 peerIdx; |
| tpDphHashNode pStaDs; |
| |
| pPeerNode->beaconHBCount++; //Update beacon count. |
| |
| // if the peer node exists, update its qos capabilities |
| if ((pStaDs = dphLookupHashEntry(pMac, pPeerNode->peerMacAddr, &peerIdx, &psessionEntry->dph.dphHashTable)) == NULL) |
| return; |
| |
| |
| //Update HT Capabilities |
| if(IS_DOT11_MODE_HT(psessionEntry->dot11mode)) |
| { |
| pStaDs->mlmStaContext.htCapability = pPeerNode->htCapable; |
| if (pPeerNode->htCapable) |
| { |
| pStaDs->htGreenfield = pPeerNode->htGreenfield; |
| pStaDs->htSupportedChannelWidthSet = pPeerNode->htSupportedChannelWidthSet; |
| pStaDs->htSecondaryChannelOffset = pPeerNode->htSecondaryChannelOffset; |
| pStaDs->htMIMOPSState = pPeerNode->htMIMOPSState; |
| pStaDs->htMaxAmsduLength = pPeerNode->htMaxAmsduLength; |
| pStaDs->htAMpduDensity = pPeerNode->htAMpduDensity; |
| pStaDs->htDsssCckRate40MHzSupport = pPeerNode->htDsssCckRate40MHzSupport; |
| pStaDs->htShortGI20Mhz = pPeerNode->htShortGI20Mhz; |
| pStaDs->htShortGI40Mhz = pPeerNode->htShortGI40Mhz; |
| pStaDs->htMaxRxAMpduFactor = pPeerNode->htMaxRxAMpduFactor; |
| // In the future, may need to check for "delayedBA" |
| // For now, it is IMMEDIATE BA only on ALL TID's |
| pStaDs->baPolicyFlag = 0xFF; |
| } |
| } |
| #ifdef WLAN_FEATURE_11AC |
| if ( IS_DOT11_MODE_VHT(psessionEntry->dot11mode) ) |
| { |
| pStaDs->mlmStaContext.vhtCapability = pPeerNode->vhtCapable; |
| if ( pPeerNode->vhtCapable ) |
| { |
| pStaDs->vhtSupportedChannelWidthSet = pPeerNode->vhtSupportedChannelWidthSet; |
| } |
| } |
| #endif |
| |
| if(IS_DOT11_MODE_PROPRIETARY(psessionEntry->dot11mode) && |
| pPeerNode->aniIndicator) |
| { |
| pStaDs->aniPeer = pPeerNode->aniIndicator; |
| pStaDs->propCapability = pPeerNode->propCapability; |
| } |
| |
| |
| // peer is 11e capable but is not 11e enabled yet |
| // some STA's when joining Airgo IBSS, assert qos capability even when |
| // they don't suport qos. however, they do not include the edca parameter |
| // set. so let's check for edcaParam in addition to the qos capability |
| if (pPeerNode->capabilityInfo.qos && (psessionEntry->limQosEnabled) && pPeerNode->edcaPresent) |
| { |
| pStaDs->qosMode = 1; |
| pStaDs->wmeEnabled = 0; |
| if (! pStaDs->lleEnabled) |
| { |
| pStaDs->lleEnabled = 1; |
| //dphSetACM(pMac, pStaDs); |
| } |
| return; |
| } |
| // peer is not 11e capable now but was 11e enabled earlier |
| else if (pStaDs->lleEnabled) |
| { |
| pStaDs->qosMode = 0; |
| pStaDs->lleEnabled = 0; |
| } |
| |
| // peer is wme capable but is not wme enabled yet |
| if (pPeerNode->wmeInfoPresent && psessionEntry->limWmeEnabled) |
| { |
| pStaDs->qosMode = 1; |
| pStaDs->lleEnabled = 0; |
| if (! pStaDs->wmeEnabled) |
| { |
| pStaDs->wmeEnabled = 1; |
| //dphSetACM(pMac, pStaDs); |
| } |
| return; |
| } |
| /* When the peer device supports EDCA parameters, then we were not |
| considering. Added this code when we saw that one of the Peer Device |
| was advertising WMM param where we were not honouring that. CR# 210756 |
| */ |
| if (pPeerNode->wmeEdcaPresent && psessionEntry->limWmeEnabled) { |
| pStaDs->qosMode = 1; |
| pStaDs->lleEnabled = 0; |
| if (! pStaDs->wmeEnabled) { |
| pStaDs->wmeEnabled = 1; |
| } |
| return; |
| } |
| |
| // peer is not wme capable now but was wme enabled earlier |
| else if (pStaDs->wmeEnabled) |
| { |
| pStaDs->qosMode = 0; |
| pStaDs->wmeEnabled = 0; |
| } |
| |
| } |
| |
| static void |
| ibss_sta_rates_update( |
| tpAniSirGlobal pMac, |
| tpDphHashNode pStaDs, |
| tLimIbssPeerNode *pPeer, |
| tpPESession psessionEntry) |
| { |
| #ifdef WLAN_FEATURE_11AC |
| limPopulateMatchingRateSet(pMac, pStaDs, &pPeer->supportedRates, |
| &pPeer->extendedRates, pPeer->supportedMCSSet, |
| &pStaDs->mlmStaContext.propRateSet,psessionEntry, &pPeer->VHTCaps); |
| #else |
| // Populate supported rateset |
| limPopulateMatchingRateSet(pMac, pStaDs, &pPeer->supportedRates, |
| &pPeer->extendedRates, pPeer->supportedMCSSet, |
| &pStaDs->mlmStaContext.propRateSet,psessionEntry); |
| #endif |
| |
| pStaDs->mlmStaContext.capabilityInfo = pPeer->capabilityInfo; |
| } /*** end ibss_sta_info_update() ***/ |
| |
| /** |
| * ibss_sta_info_update |
| * |
| *FUNCTION: |
| * This is called to program both SW & Polaris context |
| * for peer in IBSS. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @param pStaDs - Pointer to DPH node |
| * @param pPeer - Pointer to IBSS peer node |
| * |
| * @return None |
| */ |
| |
| static void |
| ibss_sta_info_update( |
| tpAniSirGlobal pMac, |
| tpDphHashNode pStaDs, |
| tLimIbssPeerNode *pPeer, |
| tpPESession psessionEntry) |
| { |
| pStaDs->staType = STA_ENTRY_PEER; |
| ibss_sta_caps_update(pMac, pPeer,psessionEntry); |
| ibss_sta_rates_update(pMac, pStaDs, pPeer,psessionEntry); |
| } /*** end ibss_sta_info_update() ***/ |
| |
| static void |
| ibss_coalesce_free( |
| tpAniSirGlobal pMac) |
| { |
| if (pMac->lim.ibssInfo.pHdr != NULL) |
| vos_mem_free(pMac->lim.ibssInfo.pHdr); |
| if (pMac->lim.ibssInfo.pBeacon != NULL) |
| vos_mem_free(pMac->lim.ibssInfo.pBeacon); |
| |
| pMac->lim.ibssInfo.pHdr = NULL; |
| pMac->lim.ibssInfo.pBeacon = NULL; |
| } |
| |
| /* |
| * save the beacon params for use when adding the bss |
| */ |
| static void |
| ibss_coalesce_save( |
| tpAniSirGlobal pMac, |
| tpSirMacMgmtHdr pHdr, |
| tpSchBeaconStruct pBeacon) |
| { |
| // get rid of any saved info |
| ibss_coalesce_free(pMac); |
| |
| pMac->lim.ibssInfo.pHdr = vos_mem_malloc(sizeof(*pHdr)); |
| if (NULL == pMac->lim.ibssInfo.pHdr) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("ibbs-save: Failed malloc pHdr"));) |
| return; |
| } |
| pMac->lim.ibssInfo.pBeacon = vos_mem_malloc(sizeof(*pBeacon)); |
| if (NULL == pMac->lim.ibssInfo.pBeacon) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("ibbs-save: Failed malloc pBeacon"));) |
| ibss_coalesce_free(pMac); |
| return; |
| } |
| |
| vos_mem_copy(pMac->lim.ibssInfo.pHdr, pHdr, sizeof(*pHdr)); |
| vos_mem_copy(pMac->lim.ibssInfo.pBeacon, pBeacon, sizeof(*pBeacon)); |
| } |
| |
| /* |
| * tries to add a new entry to dph hash node |
| * if necessary, an existing entry is eliminated |
| */ |
| static tSirRetStatus |
| ibss_dph_entry_add( |
| tpAniSirGlobal pMac, |
| tSirMacAddr peerAddr, |
| tpDphHashNode *ppSta, |
| tpPESession psessionEntry) |
| { |
| tANI_U16 peerIdx; |
| tpDphHashNode pStaDs; |
| |
| *ppSta = NULL; |
| |
| pStaDs = dphLookupHashEntry(pMac, peerAddr, &peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs != NULL) |
| { |
| /* Trying to add context for already existing STA in IBSS */ |
| PELOGE(limLog(pMac, LOGE, FL("STA exists already "));) |
| limPrintMacAddr(pMac, peerAddr, LOGE); |
| return eSIR_FAILURE; |
| } |
| |
| /** |
| * Assign an AID, delete context existing with that |
| * AID and then add an entry to hash table maintained |
| * by DPH module. |
| */ |
| peerIdx = limAssignPeerIdx(pMac, psessionEntry); |
| |
| pStaDs = dphGetHashEntry(pMac, peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs) |
| { |
| (void) limDelSta(pMac, pStaDs, false /*asynchronous*/,psessionEntry); |
| limDeleteDphHashEntry(pMac, pStaDs->staAddr, peerIdx,psessionEntry); |
| } |
| |
| pStaDs = dphAddHashEntry(pMac, peerAddr, peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs == NULL) |
| { |
| // Could not add hash table entry |
| PELOGE(limLog(pMac, LOGE, FL("could not add hash entry at DPH for peerIdx/aid=%d MACaddr:"), peerIdx);) |
| limPrintMacAddr(pMac, peerAddr, LOGE); |
| return eSIR_FAILURE; |
| } |
| |
| *ppSta = pStaDs; |
| return eSIR_SUCCESS; |
| } |
| |
| // send a status change notification |
| static void |
| ibss_status_chg_notify( |
| tpAniSirGlobal pMac, |
| tSirMacAddr peerAddr, |
| tANI_U16 staIndex, |
| tANI_U8 ucastSig, |
| tANI_U8 bcastSig, |
| tANI_U16 status, |
| tANI_U8 sessionId) |
| { |
| |
| tLimIbssPeerNode *peerNode; |
| tANI_U8 *beacon = NULL; |
| tANI_U16 bcnLen = 0; |
| |
| |
| peerNode = ibss_peer_find(pMac,peerAddr); |
| if(peerNode != NULL) |
| { |
| if(peerNode->beacon == NULL) peerNode->beaconLen = 0; |
| beacon = peerNode->beacon; |
| bcnLen = peerNode->beaconLen; |
| peerNode->beacon = NULL; |
| peerNode->beaconLen = 0; |
| } |
| |
| limSendSmeIBSSPeerInd(pMac,peerAddr, staIndex, ucastSig, bcastSig, |
| beacon, bcnLen, status, sessionId); |
| |
| if(beacon != NULL) |
| { |
| vos_mem_free(beacon); |
| } |
| } |
| |
| |
| static void |
| ibss_bss_add( |
| tpAniSirGlobal pMac, |
| tpPESession psessionEntry) |
| { |
| tLimMlmStartReq mlmStartReq; |
| tANI_U32 cfg; |
| tpSirMacMgmtHdr pHdr = (tpSirMacMgmtHdr) pMac->lim.ibssInfo.pHdr; |
| tpSchBeaconStruct pBeacon = (tpSchBeaconStruct) pMac->lim.ibssInfo.pBeacon; |
| tANI_U8 numExtRates = 0; |
| |
| if ((pHdr == NULL) || (pBeacon == NULL)) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("Unable to add BSS (no cached BSS info)"));) |
| return; |
| } |
| |
| vos_mem_copy(psessionEntry->bssId, pHdr->bssId, |
| sizeof(tSirMacAddr)); |
| |
| #if 0 |
| if (cfgSetStr(pMac, WNI_CFG_BSSID, (tANI_U8 *) pHdr->bssId, sizeof(tSirMacAddr)) |
| != eSIR_SUCCESS) |
| limLog(pMac, LOGP, FL("could not update BSSID at CFG")); |
| #endif //TO SUPPORT BT-AMP |
| |
| sirCopyMacAddr(pHdr->bssId,psessionEntry->bssId); |
| /* We need not use global Mac address since per seesion BSSID is available */ |
| //limSetBssid(pMac, pHdr->bssId); |
| |
| #if 0 |
| if (wlan_cfgGetInt(pMac, WNI_CFG_BEACON_INTERVAL, &cfg) != eSIR_SUCCESS) |
| limLog(pMac, LOGP, FL("Can't read beacon interval")); |
| #endif //TO SUPPORT BT-AMP |
| /* Copy beacon interval from sessionTable */ |
| cfg = psessionEntry->beaconParams.beaconInterval; |
| if (cfg != pBeacon->beaconInterval) |
| #if 0 |
| if (cfgSetInt(pMac, WNI_CFG_BEACON_INTERVAL, pBeacon->beaconInterval) |
| != eSIR_SUCCESS) |
| limLog(pMac, LOGP, FL("Can't update beacon interval")); |
| #endif//TO SUPPORT BT-AMP |
| psessionEntry->beaconParams.beaconInterval = pBeacon->beaconInterval; |
| |
| /* This function ibss_bss_add (and hence the below code) is only called during ibss coalescing. We need to |
| * adapt to peer's capability with respect to short slot time. Changes have been made to limApplyConfiguration() |
| * so that the IBSS doesnt blindly start with short slot = 1. If IBSS start is part of coalescing then it will adapt |
| * to peer's short slot using code below. |
| */ |
| /* If cfg is already set to current peer's capability then no need to set it again */ |
| if (psessionEntry->shortSlotTimeSupported != pBeacon->capabilityInfo.shortSlotTime) |
| { |
| psessionEntry->shortSlotTimeSupported = pBeacon->capabilityInfo.shortSlotTime; |
| } |
| vos_mem_copy((tANI_U8 *) &psessionEntry->pLimStartBssReq->operationalRateSet, |
| (tANI_U8 *) &pBeacon->supportedRates, |
| pBeacon->supportedRates.numRates); |
| |
| #if 0 |
| if (cfgSetStr(pMac, WNI_CFG_OPERATIONAL_RATE_SET, |
| (tANI_U8 *) &pMac->lim.gpLimStartBssReq->operationalRateSet.rate, |
| pMac->lim.gpLimStartBssReq->operationalRateSet.numRates) |
| != eSIR_SUCCESS) |
| limLog(pMac, LOGP, FL("could not update OperRateset at CFG")); |
| #endif //TO SUPPORT BT-AMP |
| |
| /** |
| * WNI_CFG_EXTENDED_OPERATIONAL_RATE_SET CFG needs to be reset, when |
| * there is no extended rate IE present in beacon. This is especially important when |
| * supportedRateSet IE contains all the extended rates as well and STA decides to coalesce. |
| * In this IBSS coalescing scenario LIM will tear down the BSS and Add a new one. So LIM needs to |
| * reset this CFG, just in case CSR originally had set this CFG when IBSS was started from the local profile. |
| * If IBSS was started by CSR from the BssDescription, then it would reset this CFG before StartBss is issued. |
| * The idea is that the count of OpRateSet and ExtendedOpRateSet rates should not be more than 12. |
| */ |
| |
| if(pBeacon->extendedRatesPresent) |
| numExtRates = pBeacon->extendedRates.numRates; |
| if (cfgSetStr(pMac, WNI_CFG_EXTENDED_OPERATIONAL_RATE_SET, |
| (tANI_U8 *) &pBeacon->extendedRates.rate, numExtRates) != eSIR_SUCCESS) |
| { |
| limLog(pMac, LOGP, FL("could not update ExtendedOperRateset at CFG")); |
| return; |
| } |
| |
| |
| /* |
| * Each IBSS node will advertise its own HT Capabilities instead of adapting to the Peer's capabilities |
| * If we don't do this then IBSS may not go back to full capabilities when the STA with lower capabilities |
| * leaves the IBSS. e.g. when non-CB STA joins an IBSS and then leaves, the IBSS will be stuck at non-CB mode |
| * even though all the nodes are capable of doing CB. |
| * so it is decided to leave the self HT capabilties intact. This may change if some issues are found in interop. |
| */ |
| vos_mem_set((void *) &mlmStartReq, sizeof(mlmStartReq), 0); |
| |
| vos_mem_copy(mlmStartReq.bssId, pHdr->bssId, sizeof(tSirMacAddr)); |
| mlmStartReq.rateSet.numRates = psessionEntry->pLimStartBssReq->operationalRateSet.numRates; |
| vos_mem_copy(&mlmStartReq.rateSet.rate[0], |
| &psessionEntry->pLimStartBssReq->operationalRateSet.rate[0], |
| mlmStartReq.rateSet.numRates); |
| mlmStartReq.bssType = eSIR_IBSS_MODE; |
| mlmStartReq.beaconPeriod = pBeacon->beaconInterval; |
| mlmStartReq.nwType = psessionEntry->pLimStartBssReq->nwType; //psessionEntry->nwType is also OK???? |
| mlmStartReq.htCapable = psessionEntry->htCapability; |
| mlmStartReq.htOperMode = pMac->lim.gHTOperMode; |
| mlmStartReq.dualCTSProtection = pMac->lim.gHTDualCTSProtection; |
| mlmStartReq.txChannelWidthSet = psessionEntry->htRecommendedTxWidthSet; |
| |
| #if 0 |
| if (wlan_cfgGetInt(pMac, WNI_CFG_CURRENT_CHANNEL, &cfg) != eSIR_SUCCESS) |
| limLog(pMac, LOGP, FL("CurrentChannel CFG get fialed!")); |
| #endif |
| |
| //mlmStartReq.channelNumber = (tSirMacChanNum) cfg; |
| |
| /* reading the channel num from session Table */ |
| mlmStartReq.channelNumber = psessionEntry->currentOperChannel; |
| |
| mlmStartReq.cbMode = psessionEntry->pLimStartBssReq->cbMode; |
| |
| // Copy the SSID for RxP filtering based on SSID. |
| vos_mem_copy((tANI_U8 *) &mlmStartReq.ssId, |
| (tANI_U8 *) &psessionEntry->pLimStartBssReq->ssId, |
| psessionEntry->pLimStartBssReq->ssId.length + 1); |
| |
| limLog(pMac, LOG1, FL("invoking ADD_BSS as part of coalescing!")); |
| if (limMlmAddBss(pMac, &mlmStartReq,psessionEntry) != eSIR_SME_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("AddBss failure"));) |
| return; |
| } |
| |
| // Update fields in Beacon |
| if (schSetFixedBeaconFields(pMac,psessionEntry) != eSIR_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("*** Unable to set fixed Beacon fields ***"));) |
| return; |
| } |
| |
| } |
| |
| |
| |
| /* delete the current BSS */ |
| static void |
| ibss_bss_delete( |
| tpAniSirGlobal pMac, |
| tpPESession psessionEntry) |
| { |
| tSirRetStatus status; |
| PELOGW(limLog(pMac, LOGW, FL("Initiating IBSS Delete BSS"));) |
| if (psessionEntry->limMlmState != eLIM_MLM_BSS_STARTED_STATE) |
| { |
| limLog(pMac, LOGW, FL("Incorrect LIM MLM state for delBss (%d)"), |
| psessionEntry->limMlmState); |
| return; |
| } |
| status = limDelBss(pMac, NULL, psessionEntry->bssIdx, psessionEntry); |
| if (status != eSIR_SUCCESS) |
| PELOGE(limLog(pMac, LOGE, FL("delBss failed for bss %d"), psessionEntry->bssIdx);) |
| } |
| |
| /** |
| * limIbssInit |
| * |
| *FUNCTION: |
| * This function is called while starting an IBSS |
| * to initialize list used to maintain IBSS peers. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @return None |
| */ |
| |
| void |
| limIbssInit( |
| tpAniSirGlobal pMac) |
| { |
| //pMac->lim.gLimIbssActive = 0; |
| pMac->lim.gLimIbssCoalescingHappened = 0; |
| pMac->lim.gLimIbssPeerList = NULL; |
| pMac->lim.gLimNumIbssPeers = 0; |
| |
| // ibss info - params for which ibss to join while coalescing |
| vos_mem_set(&pMac->lim.ibssInfo, sizeof(tAniSirLimIbss), 0); |
| } /*** end limIbssInit() ***/ |
| |
| /** |
| * limIbssDeleteAllPeers |
| * |
| *FUNCTION: |
| * This function is called to delete all peers. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @return None |
| */ |
| |
| void limIbssDeleteAllPeers( tpAniSirGlobal pMac ,tpPESession psessionEntry) |
| { |
| tLimIbssPeerNode *pCurrNode, *pTempNode; |
| tpDphHashNode pStaDs; |
| tANI_U16 peerIdx; |
| |
| pCurrNode = pTempNode = pMac->lim.gLimIbssPeerList; |
| |
| while (pCurrNode != NULL) |
| { |
| if (!pMac->lim.gLimNumIbssPeers) |
| { |
| limLog(pMac, LOGP, |
| FL("Number of peers in the list is zero and node present")); |
| return; |
| } |
| /* Delete the dph entry for the station |
| * Since it is called to remove all peers, just delete from dph, |
| * no need to do any beacon related params i.e., dont call limDeleteDphHashEntry |
| */ |
| pStaDs = dphLookupHashEntry(pMac, pCurrNode->peerMacAddr, &peerIdx, &psessionEntry->dph.dphHashTable); |
| if( pStaDs ) |
| { |
| |
| ibss_status_chg_notify( pMac, pCurrNode->peerMacAddr, pStaDs->staIndex, |
| pStaDs->ucUcastSig, pStaDs->ucBcastSig, |
| eWNI_SME_IBSS_PEER_DEPARTED_IND, psessionEntry->smeSessionId ); |
| limReleasePeerIdx(pMac, peerIdx, psessionEntry); |
| dphDeleteHashEntry(pMac, pStaDs->staAddr, peerIdx, &psessionEntry->dph.dphHashTable); |
| } |
| |
| pTempNode = pCurrNode->next; |
| |
| /* TODO :Sessionize this code */ |
| /* Fix CR 227642: PeerList should point to the next node since the current node is being |
| * freed in the next line. In ibss_peerfind in ibss_status_chg_notify above, we use this |
| * peer list to find the next peer. So this list needs to be updated with the no of peers left |
| * after each iteration in this while loop since one by one peers are deleted (freed) in this |
| * loop causing the lim.gLimIbssPeerList to point to some freed memory. |
| */ |
| pMac->lim.gLimIbssPeerList = pTempNode; |
| |
| if(pCurrNode->beacon) |
| { |
| vos_mem_free(pCurrNode->beacon); |
| } |
| vos_mem_free(pCurrNode); |
| if (pMac->lim.gLimNumIbssPeers > 0) // be paranoid |
| pMac->lim.gLimNumIbssPeers--; |
| pCurrNode = pTempNode; |
| } |
| |
| if (pMac->lim.gLimNumIbssPeers) |
| limLog(pMac, LOGP, FL("Number of peers[%d] in the list is non-zero"), |
| pMac->lim.gLimNumIbssPeers); |
| |
| pMac->lim.gLimNumIbssPeers = 0; |
| pMac->lim.gLimIbssPeerList = NULL; |
| |
| } |
| /** |
| * limIbssDelete |
| * |
| *FUNCTION: |
| * This function is called while tearing down an IBSS. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @return None |
| */ |
| |
| void |
| limIbssDelete( |
| tpAniSirGlobal pMac,tpPESession psessionEntry) |
| { |
| #ifdef WLAN_FEATURE_RMC |
| limRmcIbssDelete(pMac); |
| #endif /* WLAN_FEATURE_RMC */ |
| |
| limIbssDeleteAllPeers(pMac,psessionEntry); |
| |
| ibss_coalesce_free(pMac); |
| } /*** end limIbssDelete() ***/ |
| |
| /** Commenting this Code as from no where it is being invoked */ |
| #if 0 |
| /** |
| * limIbssPeerDelete |
| * |
| *FUNCTION: |
| * This may be called on a STA in IBSS to delete a peer |
| * from the list. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @param peerMacAddr - MAC address of the peer STA that |
| * need to be deleted from peer list. |
| * |
| * @return None |
| */ |
| |
| void |
| limIbssPeerDelete(tpAniSirGlobal pMac, tSirMacAddr macAddr) |
| { |
| tLimIbssPeerNode *pPrevNode, *pTempNode; |
| |
| pTempNode = pPrevNode = pMac->lim.gLimIbssPeerList; |
| |
| if (pTempNode == NULL) |
| return; |
| |
| while (pTempNode != NULL) |
| { |
| if (vos_mem_compare((tANI_U8 *) macAddr, |
| (tANI_U8 *) &pTempNode->peerMacAddr, |
| sizeof(tSirMacAddr)) ) |
| { |
| // Found node to be deleted |
| if (pMac->lim.gLimIbssPeerList == pTempNode) /** First Node to be deleted*/ |
| pMac->lim.gLimIbssPeerList = pTempNode->next; |
| else |
| pPrevNode->next = pTempNode->next; |
| |
| if(pTempNode->beacon) |
| { |
| vos_mem_free(pTempNode->beacon); |
| pTempNode->beacon = NULL; |
| } |
| vos_mem_free(pTempNode); |
| pMac->lim.gLimNumIbssPeers--; |
| return; |
| } |
| |
| pPrevNode = pTempNode; |
| pTempNode = pTempNode->next; |
| } |
| |
| // Should not be here |
| PELOGE(limLog(pMac, LOGE, FL("peer not found in the list, addr= "));) |
| limPrintMacAddr(pMac, macAddr, LOGE); |
| } /*** end limIbssPeerDelete() ***/ |
| |
| #endif |
| |
| |
| /** ------------------------------------------------------------- |
| \fn limIbssSetProtection |
| \brief Decides all the protection related information. |
| \ |
| \param tpAniSirGlobal pMac |
| \param tSirMacAddr peerMacAddr |
| \param tpUpdateBeaconParams pBeaconParams |
| \return None |
| -------------------------------------------------------------*/ |
| static void |
| limIbssSetProtection(tpAniSirGlobal pMac, tANI_U8 enable, tpUpdateBeaconParams pBeaconParams, tpPESession psessionEntry) |
| { |
| |
| if(!pMac->lim.cfgProtection.fromllb) |
| { |
| limLog(pMac, LOG1, FL("protection from 11b is disabled")); |
| return; |
| } |
| |
| if (enable) |
| { |
| psessionEntry->gLim11bParams.protectionEnabled = true; |
| if(false == psessionEntry->beaconParams.llbCoexist/*pMac->lim.llbCoexist*/) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("=> IBSS: Enable Protection "));) |
| pBeaconParams->llbCoexist = psessionEntry->beaconParams.llbCoexist = true; |
| pBeaconParams->paramChangeBitmap |= PARAM_llBCOEXIST_CHANGED; |
| } |
| } |
| else if (true == psessionEntry->beaconParams.llbCoexist/*pMac->lim.llbCoexist*/) |
| { |
| psessionEntry->gLim11bParams.protectionEnabled = false; |
| PELOGE(limLog(pMac, LOGE, FL("===> IBSS: Disable protection "));) |
| pBeaconParams->llbCoexist = psessionEntry->beaconParams.llbCoexist = false; |
| pBeaconParams->paramChangeBitmap |= PARAM_llBCOEXIST_CHANGED; |
| } |
| return; |
| } |
| |
| |
| /** ------------------------------------------------------------- |
| \fn limIbssUpdateProtectionParams |
| \brief Decides all the protection related information. |
| \ |
| \param tpAniSirGlobal pMac |
| \param tSirMacAddr peerMacAddr |
| \param tpUpdateBeaconParams pBeaconParams |
| \return None |
| -------------------------------------------------------------*/ |
| static void |
| limIbssUpdateProtectionParams(tpAniSirGlobal pMac, |
| tSirMacAddr peerMacAddr, tLimProtStaCacheType protStaCacheType, |
| tpPESession psessionEntry) |
| { |
| tANI_U32 i; |
| |
| limLog(pMac,LOG1, FL("A STA is associated:")); |
| limLog(pMac,LOG1, FL("Addr : ")); |
| limPrintMacAddr(pMac, peerMacAddr, LOG1); |
| |
| for (i=0; i<LIM_PROT_STA_CACHE_SIZE; i++) |
| { |
| if (pMac->lim.protStaCache[i].active) |
| { |
| limLog(pMac, LOG1, FL("Addr: ")); |
| limPrintMacAddr(pMac, pMac->lim.protStaCache[i].addr, LOG1); |
| |
| if (vos_mem_compare(pMac->lim.protStaCache[i].addr, |
| peerMacAddr, sizeof(tSirMacAddr))) |
| { |
| limLog(pMac, LOG1, FL("matching cache entry at %d already active."), i); |
| return; |
| } |
| } |
| } |
| |
| for (i=0; i<LIM_PROT_STA_CACHE_SIZE; i++) |
| { |
| if (!pMac->lim.protStaCache[i].active) |
| break; |
| } |
| |
| if (i >= LIM_PROT_STA_CACHE_SIZE) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("No space in ProtStaCache"));) |
| return; |
| } |
| |
| vos_mem_copy(pMac->lim.protStaCache[i].addr, |
| peerMacAddr, |
| sizeof(tSirMacAddr)); |
| |
| pMac->lim.protStaCache[i].protStaCacheType = protStaCacheType; |
| pMac->lim.protStaCache[i].active = true; |
| if(eLIM_PROT_STA_CACHE_TYPE_llB == protStaCacheType) |
| { |
| psessionEntry->gLim11bParams.numSta++; |
| } |
| else if(eLIM_PROT_STA_CACHE_TYPE_llG == protStaCacheType) |
| { |
| psessionEntry->gLim11gParams.numSta++; |
| } |
| } |
| |
| |
| /** ------------------------------------------------------------- |
| \fn limIbssDecideProtection |
| \brief Decides all the protection related information. |
| \ |
| \param tpAniSirGlobal pMac |
| \param tSirMacAddr peerMacAddr |
| \param tpUpdateBeaconParams pBeaconParams |
| \return None |
| -------------------------------------------------------------*/ |
| static void |
| limIbssDecideProtection(tpAniSirGlobal pMac, tpDphHashNode pStaDs, tpUpdateBeaconParams pBeaconParams, tpPESession psessionEntry) |
| { |
| tSirRFBand rfBand = SIR_BAND_UNKNOWN; |
| tANI_U32 phyMode; |
| tLimProtStaCacheType protStaCacheType = eLIM_PROT_STA_CACHE_TYPE_INVALID; |
| |
| pBeaconParams->paramChangeBitmap = 0; |
| |
| if(NULL == pStaDs) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("pStaDs is NULL"));) |
| return; |
| } |
| |
| limGetRfBand(pMac, &rfBand, psessionEntry); |
| if(SIR_BAND_2_4_GHZ== rfBand) |
| { |
| limGetPhyMode(pMac, &phyMode, psessionEntry); |
| |
| //We are 11G or 11n. Check if we need protection from 11b Stations. |
| if ((phyMode == WNI_CFG_PHY_MODE_11G) || (psessionEntry->htCapability)) |
| { |
| /* As we found in the past, it is possible that a 11n STA sends |
| * Beacon with HT IE but not ERP IE. So the absense of ERP IE |
| * in the Beacon is not enough to conclude that STA is 11b. |
| */ |
| if ((pStaDs->erpEnabled == eHAL_CLEAR) && |
| (!pStaDs->mlmStaContext.htCapability)) |
| { |
| protStaCacheType = eLIM_PROT_STA_CACHE_TYPE_llB; |
| PELOGE(limLog(pMac, LOGE, FL("Enable protection from 11B"));) |
| limIbssSetProtection(pMac, true, pBeaconParams,psessionEntry); |
| } |
| } |
| } |
| limIbssUpdateProtectionParams(pMac, pStaDs->staAddr, protStaCacheType, psessionEntry); |
| return; |
| } |
| |
| |
| /** |
| * limIbssStaAdd() |
| * |
| *FUNCTION: |
| * This function is called to add an STA context in IBSS role |
| * whenever a data frame is received from/for a STA that failed |
| * hash lookup at DPH. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * NA |
| * |
| *NOTE: |
| * NA |
| * |
| * @param pMac Pointer to Global MAC structure |
| * @param peerAdddr MAC address of the peer being added |
| * @return retCode Indicates success or failure return code |
| * @return |
| */ |
| |
| tSirRetStatus |
| limIbssStaAdd( |
| tpAniSirGlobal pMac, |
| void *pBody, |
| tpPESession psessionEntry) |
| { |
| tSirRetStatus retCode = eSIR_SUCCESS; |
| tpDphHashNode pStaDs; |
| tLimIbssPeerNode *pPeerNode; |
| tLimMlmStates prevState; |
| tSirMacAddr *pPeerAddr = (tSirMacAddr *) pBody; |
| tUpdateBeaconParams beaconParams; |
| |
| vos_mem_set((tANI_U8 *) &beaconParams, sizeof(tUpdateBeaconParams), 0); |
| |
| if (pBody == 0) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("Invalid IBSS AddSta"));) |
| return eSIR_FAILURE; |
| } |
| |
| PELOGE(limLog(pMac, LOGE, FL("Rx Add-Ibss-Sta for MAC:"));) |
| limPrintMacAddr(pMac, *pPeerAddr, LOGE); |
| |
| pPeerNode = ibss_peer_find(pMac, *pPeerAddr); |
| if (NULL != pPeerNode) |
| { |
| retCode = ibss_dph_entry_add(pMac, *pPeerAddr, &pStaDs, psessionEntry); |
| if (eSIR_SUCCESS == retCode) |
| { |
| prevState = pStaDs->mlmStaContext.mlmState; |
| pStaDs->erpEnabled = pPeerNode->erpIePresent; |
| |
| ibss_sta_info_update(pMac, pStaDs, pPeerNode, psessionEntry); |
| PELOGW(limLog(pMac, LOGW, FL("initiating ADD STA for the IBSS peer."));) |
| retCode = limAddSta(pMac, pStaDs, false, psessionEntry); |
| if (retCode != eSIR_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("ibss-sta-add failed (reason %x)"), |
| retCode);) |
| limPrintMacAddr(pMac, *pPeerAddr, LOGE); |
| pStaDs->mlmStaContext.mlmState = prevState; |
| dphDeleteHashEntry(pMac, pStaDs->staAddr, pStaDs->assocId, |
| &psessionEntry->dph.dphHashTable); |
| } |
| else |
| { |
| if(pMac->lim.gLimProtectionControl != WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| limIbssDecideProtection(pMac, pStaDs, &beaconParams , psessionEntry); |
| |
| if(beaconParams.paramChangeBitmap) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("---> Update Beacon Params "));) |
| schSetFixedBeaconFields(pMac, psessionEntry); |
| beaconParams.bssIdx = psessionEntry->bssIdx; |
| limSendBeaconParams(pMac, &beaconParams, psessionEntry ); |
| } |
| } |
| } |
| else |
| { |
| PELOGE(limLog(pMac, LOGE, FL("hashTblAdd failed (reason %x)"), retCode);) |
| limPrintMacAddr(pMac, *pPeerAddr, LOGE); |
| } |
| } |
| else |
| { |
| retCode = eSIR_FAILURE; |
| } |
| |
| return retCode; |
| } |
| |
| static void |
| __limIbssSearchAndDeletePeer(tpAniSirGlobal pMac, |
| tpPESession psessionEntry, |
| tSirMacAddr macAddr) |
| { |
| tLimIbssPeerNode *pTempNode, *pPrevNode; |
| tLimIbssPeerNode *pTempNextNode = NULL; |
| tpDphHashNode pStaDs=NULL; |
| tANI_U16 peerIdx=0; |
| tANI_U16 staIndex=0; |
| tANI_U8 ucUcastSig; |
| tANI_U8 ucBcastSig; |
| |
| pPrevNode = pTempNode = pMac->lim.gLimIbssPeerList; |
| |
| limLog(pMac, LOG1, |
| FL(" PEER ADDR :" MAC_ADDRESS_STR ),MAC_ADDR_ARRAY(macAddr)); |
| |
| /** Compare Peer */ |
| while (NULL != pTempNode) |
| { |
| pTempNextNode = pTempNode->next; |
| |
| /* Delete the STA with MAC address */ |
| if (vos_mem_compare( (tANI_U8 *) macAddr, |
| (tANI_U8 *) &pTempNode->peerMacAddr, |
| sizeof(tSirMacAddr)) ) |
| { |
| pStaDs = dphLookupHashEntry(pMac, macAddr, |
| &peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs) |
| { |
| staIndex = pStaDs->staIndex; |
| ucUcastSig = pStaDs->ucUcastSig; |
| ucBcastSig = pStaDs->ucBcastSig; |
| |
| #ifdef WLAN_FEATURE_RMC |
| limRmcTransmitterDelete(pMac, pStaDs->staAddr); |
| #endif /* WLAN_FEATURE_RMC */ |
| |
| /* Send DEL STA only if STA id is valid, mean ADD STA was |
| * success. |
| */ |
| if(HAL_STA_INVALID_IDX != staIndex) |
| limDelSta(pMac, pStaDs, false /*asynchronous*/, psessionEntry); |
| limDeleteDphHashEntry(pMac, |
| pStaDs->staAddr, peerIdx, psessionEntry); |
| limReleasePeerIdx(pMac, peerIdx, psessionEntry); |
| |
| /* Send indication to upper layers only if ADD STA was success |
| * i.e staid is Valid. |
| */ |
| if(HAL_STA_INVALID_IDX != staIndex) |
| ibss_status_chg_notify(pMac, macAddr, staIndex, |
| ucUcastSig, ucBcastSig, |
| eWNI_SME_IBSS_PEER_DEPARTED_IND, |
| psessionEntry->smeSessionId ); |
| if (pTempNode == pMac->lim.gLimIbssPeerList) |
| { |
| pMac->lim.gLimIbssPeerList = pTempNode->next; |
| pPrevNode = pMac->lim.gLimIbssPeerList; |
| } |
| else |
| pPrevNode->next = pTempNode->next; |
| |
| vos_mem_free(pTempNode); |
| pMac->lim.gLimNumIbssPeers--; |
| |
| pTempNode = pTempNextNode; |
| break; |
| } |
| } |
| pPrevNode = pTempNode; |
| pTempNode = pTempNextNode; |
| } |
| /* |
| * if it is the last peer walking out, we better |
| * we set IBSS state to inactive. |
| */ |
| if (0 == pMac->lim.gLimNumIbssPeers) |
| { |
| VOS_TRACE(VOS_MODULE_ID_PE, VOS_TRACE_LEVEL_INFO, |
| "Last STA from IBSS walked out"); |
| psessionEntry->limIbssActive = false; |
| } |
| } |
| |
| /* handle the response from HAL for an ADD STA request */ |
| tSirRetStatus |
| limIbssAddStaRsp( |
| tpAniSirGlobal pMac, |
| void *msg,tpPESession psessionEntry) |
| { |
| tpDphHashNode pStaDs; |
| tANI_U16 peerIdx; |
| tpAddStaParams pAddStaParams = (tpAddStaParams) msg; |
| |
| SET_LIM_PROCESS_DEFD_MESGS(pMac, true); |
| if (pAddStaParams == NULL) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("IBSS: ADD_STA_RSP with no body!"));) |
| return eSIR_FAILURE; |
| } |
| |
| pStaDs = dphLookupHashEntry(pMac, |
| pAddStaParams->staMac, &peerIdx, |
| &psessionEntry->dph.dphHashTable); |
| if (pStaDs == NULL) |
| { |
| limLog(pMac, LOGE, |
| FL("IBSS: ADD_STA_RSP for unknown MAC addr: "MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(pAddStaParams->staMac)); |
| vos_mem_free(pAddStaParams); |
| return eSIR_FAILURE; |
| } |
| |
| if (pAddStaParams->status != eHAL_STATUS_SUCCESS) |
| { |
| limLog(pMac, LOGE, |
| FL("IBSS: ADD_STA_RSP error (%x) from MAC: " MAC_ADDRESS_STR), |
| pAddStaParams->status, MAC_ADDR_ARRAY(pAddStaParams->staMac)); |
| __limIbssSearchAndDeletePeer(pMac, |
| psessionEntry, pAddStaParams->staMac); |
| vos_mem_free(pAddStaParams); |
| return eSIR_FAILURE; |
| } |
| |
| pStaDs->bssId = pAddStaParams->bssIdx; |
| pStaDs->staIndex = pAddStaParams->staIdx; |
| pStaDs->ucUcastSig = pAddStaParams->ucUcastSig; |
| pStaDs->ucBcastSig = pAddStaParams->ucBcastSig; |
| pStaDs->valid = 1; |
| pStaDs->mlmStaContext.mlmState = eLIM_MLM_LINK_ESTABLISHED_STATE; |
| |
| PELOGW(limLog(pMac, LOGW, FL("IBSS: sending IBSS_NEW_PEER msg to SME!"));) |
| |
| ibss_status_chg_notify(pMac, pAddStaParams->staMac, pStaDs->staIndex, |
| pStaDs->ucUcastSig, pStaDs->ucBcastSig, |
| eWNI_SME_IBSS_NEW_PEER_IND, |
| psessionEntry->smeSessionId); |
| |
| #ifdef WLAN_FEATURE_RMC |
| limRmcTriggerRulerSelection(pMac, psessionEntry->selfMacAddr); |
| #endif |
| |
| vos_mem_free(pAddStaParams); |
| |
| return eSIR_SUCCESS; |
| } |
| |
| |
| |
| void limIbssDelBssRspWhenCoalescing(tpAniSirGlobal pMac, void *msg,tpPESession psessionEntry) |
| { |
| tpDeleteBssParams pDelBss = (tpDeleteBssParams) msg; |
| |
| PELOGW(limLog(pMac, LOGW, FL("IBSS: DEL_BSS_RSP Rcvd during coalescing!"));) |
| |
| if (pDelBss == NULL) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("IBSS: DEL_BSS_RSP(coalesce) with no body!"));) |
| goto end; |
| } |
| |
| if (pDelBss->status != eHAL_STATUS_SUCCESS) |
| { |
| limLog(pMac, LOGE, FL("IBSS: DEL_BSS_RSP(coalesce) error (%x) Bss %d "), |
| pDelBss->status, pDelBss->bssIdx); |
| goto end; |
| } |
| //Delete peer entries. |
| limIbssDeleteAllPeers(pMac,psessionEntry); |
| |
| /* add the new bss */ |
| ibss_bss_add(pMac,psessionEntry); |
| |
| end: |
| if(pDelBss != NULL) |
| vos_mem_free(pDelBss); |
| } |
| |
| |
| |
| void limIbssAddBssRspWhenCoalescing(tpAniSirGlobal pMac, void *msg, tpPESession pSessionEntry) |
| { |
| tANI_U8 infoLen; |
| tSirSmeNewBssInfo newBssInfo; |
| |
| tpAddBssParams pAddBss = (tpAddBssParams) msg; |
| |
| tpSirMacMgmtHdr pHdr = (tpSirMacMgmtHdr) pMac->lim.ibssInfo.pHdr; |
| tpSchBeaconStruct pBeacon = (tpSchBeaconStruct) pMac->lim.ibssInfo.pBeacon; |
| |
| if ((pHdr == NULL) || (pBeacon == NULL)) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("Unable to handle AddBssRspWhenCoalescing (no cached BSS info)"));) |
| goto end; |
| } |
| |
| // Inform Host of IBSS coalescing |
| infoLen = sizeof(tSirMacAddr) + sizeof(tSirMacChanNum) + |
| sizeof(tANI_U8) + pBeacon->ssId.length + 1; |
| |
| vos_mem_set((void *) &newBssInfo, sizeof(newBssInfo), 0); |
| vos_mem_copy(newBssInfo.bssId, pHdr->bssId, sizeof(tSirMacAddr)); |
| newBssInfo.channelNumber = (tSirMacChanNum) pAddBss->currentOperChannel; |
| vos_mem_copy((tANI_U8 *) &newBssInfo.ssId, |
| (tANI_U8 *) &pBeacon->ssId, pBeacon->ssId.length + 1); |
| |
| PELOGW(limLog(pMac, LOGW, FL("Sending JOINED_NEW_BSS notification to SME."));) |
| |
| limSendSmeWmStatusChangeNtf(pMac, eSIR_SME_JOINED_NEW_BSS, |
| (tANI_U32 *) &newBssInfo, |
| infoLen,pSessionEntry->smeSessionId); |
| { |
| //Configure beacon and send beacons to HAL |
| limSendBeaconInd(pMac, pSessionEntry); |
| } |
| |
| end: |
| ibss_coalesce_free(pMac); |
| } |
| |
| void |
| limIbssDelBssRsp( |
| tpAniSirGlobal pMac, |
| void *msg,tpPESession psessionEntry) |
| { |
| tSirResultCodes rc = eSIR_SME_SUCCESS; |
| tpDeleteBssParams pDelBss = (tpDeleteBssParams) msg; |
| tSirMacAddr nullBssid = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| |
| |
| SET_LIM_PROCESS_DEFD_MESGS(pMac, true); |
| if (pDelBss == NULL) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("IBSS: DEL_BSS_RSP with no body!"));) |
| rc = eSIR_SME_REFUSED; |
| goto end; |
| } |
| |
| if((psessionEntry = peFindSessionBySessionId(pMac,pDelBss->sessionId))==NULL) |
| { |
| limLog(pMac, LOGP,FL("Session Does not exist for given sessionID")); |
| goto end; |
| } |
| |
| |
| /* |
| * If delBss was issued as part of IBSS Coalescing, gLimIbssCoalescingHappened flag will be true. |
| * BSS has to be added again in this scenario, so this case needs to be handled separately. |
| * If delBss was issued as a result of trigger from SME_STOP_BSS Request, then limSme state changes to |
| * 'IDLE' and gLimIbssCoalescingHappened flag will be false. In this case STOP BSS RSP has to be sent to SME. |
| */ |
| if(true == pMac->lim.gLimIbssCoalescingHappened) |
| { |
| |
| limIbssDelBssRspWhenCoalescing(pMac,msg,psessionEntry); |
| return; |
| } |
| |
| |
| |
| if (pDelBss->status != eHAL_STATUS_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("IBSS: DEL_BSS_RSP error (%x) Bss %d "), |
| pDelBss->status, pDelBss->bssIdx);) |
| rc = eSIR_SME_STOP_BSS_FAILURE; |
| goto end; |
| } |
| |
| |
| |
| if(limSetLinkState(pMac, eSIR_LINK_IDLE_STATE, nullBssid, |
| psessionEntry->selfMacAddr, NULL, NULL) != eSIR_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("IBSS: DEL_BSS_RSP setLinkState failed"));) |
| rc = eSIR_SME_REFUSED; |
| goto end; |
| } |
| |
| limIbssDelete(pMac,psessionEntry); |
| |
| dphHashTableClassInit(pMac, &psessionEntry->dph.dphHashTable); |
| limDeletePreAuthList(pMac); |
| |
| psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE; |
| |
| MTRACE(macTrace(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, psessionEntry->limMlmState)); |
| |
| psessionEntry->limSystemRole = eLIM_STA_ROLE; |
| |
| /* Change the short slot operating mode to Default (which is 1 for now) so that when IBSS starts next time with Libra |
| * as originator, it picks up the default. This enables us to remove hard coding of short slot = 1 from limApplyConfiguration |
| */ |
| psessionEntry->shortSlotTimeSupported = WNI_CFG_SHORT_SLOT_TIME_STADEF; |
| |
| end: |
| if(pDelBss != NULL) |
| vos_mem_free(pDelBss); |
| /* Delete PE session once BSS is deleted */ |
| if (NULL != psessionEntry) { |
| limSendSmeRsp(pMac, eWNI_SME_STOP_BSS_RSP, rc,psessionEntry->smeSessionId,psessionEntry->transactionId); |
| peDeleteSession(pMac, psessionEntry); |
| psessionEntry = NULL; |
| } |
| } |
| |
| /** |
| * limIbssCoalesce() |
| * |
| *FUNCTION: |
| * This function is called upon receiving Beacon/Probe Response |
| * while operating in IBSS mode. |
| * |
| *LOGIC: |
| * |
| *ASSUMPTIONS: |
| * |
| *NOTE: |
| * |
| * @param pMac - Pointer to Global MAC structure |
| * @param pBeacon - Parsed Beacon Frame structure |
| * @param pBD - Pointer to received BD |
| * |
| * @return Status whether to process or ignore received Beacon Frame |
| */ |
| |
| tSirRetStatus |
| limIbssCoalesce( |
| tpAniSirGlobal pMac, |
| tpSirMacMgmtHdr pHdr, |
| tpSchBeaconStruct pBeacon, |
| tANI_U8 *pIEs, |
| tANI_U32 ieLen, |
| tANI_U16 fTsfLater, |
| tpPESession psessionEntry) |
| { |
| tANI_U16 peerIdx; |
| tSirMacAddr currentBssId; |
| tLimIbssPeerNode *pPeerNode; |
| tpDphHashNode pStaDs; |
| tUpdateBeaconParams beaconParams; |
| |
| vos_mem_set((tANI_U8 *)&beaconParams, sizeof(tUpdateBeaconParams), 0); |
| |
| sirCopyMacAddr(currentBssId,psessionEntry->bssId); |
| |
| limLog(pMac, LOG1, FL("Current BSSID :" MAC_ADDRESS_STR " Received BSSID :" MAC_ADDRESS_STR ), |
| MAC_ADDR_ARRAY(currentBssId), MAC_ADDR_ARRAY(pHdr->bssId)); |
| |
| /* Check for IBSS Coalescing only if Beacon is from different BSS */ |
| if ( !vos_mem_compare(currentBssId, pHdr->bssId, sizeof( tSirMacAddr )) |
| && psessionEntry->isCoalesingInIBSSAllowed) |
| { |
| /* |
| * If STA entry is already available in the LIM hash table, then it is |
| * possible that the peer may have left and rejoined within the heartbeat |
| * timeout. In the offloaded case with 32 peers, the HB timeout is whopping |
| * 128 seconds. In that case, the FW will not let any frames come in until |
| * atleast the last sequence number is received before the peer is left |
| * Hence, if the coalescing peer is already there in the peer list and if |
| * the BSSID matches then, invoke delSta() to cleanup the entries. We will |
| * let the peer coalesce when we receive next beacon from the peer |
| */ |
| pPeerNode = ibss_peer_find(pMac, pHdr->sa); |
| if (NULL != pPeerNode) |
| { |
| __limIbssSearchAndDeletePeer (pMac, psessionEntry, pHdr->sa); |
| PELOGW(limLog(pMac, LOGW, |
| FL("** Peer attempting to reconnect before HB timeout, deleted **"));) |
| return eSIR_LIM_IGNORE_BEACON; |
| } |
| |
| if (! fTsfLater) // No Coalescing happened. |
| { |
| PELOGW(limLog(pMac, LOGW, FL("No Coalescing happened"));) |
| return eSIR_LIM_IGNORE_BEACON; |
| } |
| /* |
| * IBSS Coalescing happened. |
| * save the received beacon, and delete the current BSS. The rest of the |
| * processing will be done in the delBss response processing |
| */ |
| pMac->lim.gLimIbssCoalescingHappened = true; |
| PELOGW(limLog(pMac, LOGW, FL("IBSS Coalescing happened"));) |
| ibss_coalesce_save(pMac, pHdr, pBeacon); |
| limLog(pMac, LOGW, FL("Delete BSSID :" MAC_ADDRESS_STR ), |
| MAC_ADDR_ARRAY(currentBssId)); |
| ibss_bss_delete(pMac,psessionEntry); |
| return eSIR_SUCCESS; |
| } |
| else |
| { |
| if (!vos_mem_compare(currentBssId, pHdr->bssId, sizeof( tSirMacAddr ))) |
| return eSIR_LIM_IGNORE_BEACON; |
| } |
| |
| |
| // STA in IBSS mode and SSID matches with ours |
| pPeerNode = ibss_peer_find(pMac, pHdr->sa); |
| if (pPeerNode == NULL) |
| { |
| /* Peer not in the list - Collect BSS description & add to the list */ |
| tANI_U32 frameLen; |
| tSirRetStatus retCode; |
| |
| /* |
| * Limit the Max number of IBSS Peers allowed as the max |
| * number of STA's allowed |
| * pMac->lim.gLimNumIbssPeers will be increamented after exiting |
| * this function. so we will add additional 1 to compare against |
| * pMac->lim.gLimIbssStaLimit |
| */ |
| if ((pMac->lim.gLimNumIbssPeers+1) >= pMac->lim.gLimIbssStaLimit) |
| { /*Print every 100th time */ |
| if (pMac->lim.gLimIbssRetryCnt % 100 == 0) |
| { |
| limLog(pMac, LOG1, FL("**** MAX STA LIMIT HAS REACHED ****")); |
| } |
| pMac->lim.gLimIbssRetryCnt++; |
| return eSIR_LIM_MAX_STA_REACHED_ERROR; |
| } |
| PELOGW(limLog(pMac, LOGW, FL("IBSS Peer node does not exist, adding it***"));) |
| frameLen = sizeof(tLimIbssPeerNode) + ieLen - sizeof(tANI_U32); |
| |
| pPeerNode = vos_mem_malloc((tANI_U16)frameLen); |
| if (NULL == pPeerNode) |
| { |
| limLog(pMac, LOGP, FL("alloc fail (%d bytes) storing IBSS peer info"), |
| frameLen); |
| return eSIR_MEM_ALLOC_FAILED; |
| } |
| |
| pPeerNode->beacon = NULL; |
| pPeerNode->beaconLen = 0; |
| |
| ibss_peer_collect(pMac, pBeacon, pHdr, pPeerNode,psessionEntry); |
| pPeerNode->beacon = vos_mem_malloc(ieLen); |
| if (NULL == pPeerNode->beacon) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("Unable to allocate memory to store beacon"));) |
| } |
| else |
| { |
| vos_mem_copy(pPeerNode->beacon, pIEs, ieLen); |
| pPeerNode->beaconLen = (tANI_U16)ieLen; |
| } |
| ibss_peer_add(pMac, pPeerNode); |
| |
| pStaDs = dphLookupHashEntry(pMac, pPeerNode->peerMacAddr, &peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs != NULL) |
| { |
| /// DPH node already exists for the peer |
| limLog(pMac, LOG1, FL("DPH Node present for just learned peer")); |
| limPrintMacAddr(pMac, pPeerNode->peerMacAddr, LOG1); |
| ibss_sta_info_update(pMac, pStaDs, pPeerNode,psessionEntry); |
| return eSIR_SUCCESS; |
| } |
| retCode = limIbssStaAdd(pMac, pPeerNode->peerMacAddr,psessionEntry); |
| if (retCode != eSIR_SUCCESS) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("lim-ibss-sta-add failed (reason %x)"), retCode);) |
| limPrintMacAddr(pMac, pPeerNode->peerMacAddr, LOGE); |
| return retCode; |
| } |
| |
| // Decide protection mode |
| pStaDs = dphLookupHashEntry(pMac, pPeerNode->peerMacAddr, &peerIdx, &psessionEntry->dph.dphHashTable); |
| if(pMac->lim.gLimProtectionControl != WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| limIbssDecideProtection(pMac, pStaDs, &beaconParams, psessionEntry); |
| |
| if(beaconParams.paramChangeBitmap) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("beaconParams.paramChangeBitmap=1 ---> Update Beacon Params "));) |
| schSetFixedBeaconFields(pMac, psessionEntry); |
| beaconParams.bssIdx = psessionEntry->bssIdx; |
| limSendBeaconParams(pMac, &beaconParams, psessionEntry ); |
| } |
| } |
| else |
| ibss_sta_caps_update(pMac, pPeerNode,psessionEntry); |
| |
| if (psessionEntry->limSmeState != eLIM_SME_NORMAL_STATE) |
| return eSIR_SUCCESS; |
| |
| // Received Beacon from same IBSS we're |
| // currently part of. Inform Roaming algorithm |
| // if not already that IBSS is active. |
| if (psessionEntry->limIbssActive == false) |
| { |
| limResetHBPktCount(psessionEntry); |
| PELOGW(limLog(pMac, LOGW, FL("Partner joined our IBSS, Sending IBSS_ACTIVE Notification to SME"));) |
| psessionEntry->limIbssActive = true; |
| limSendSmeWmStatusChangeNtf(pMac, eSIR_SME_IBSS_ACTIVE, NULL, 0, psessionEntry->smeSessionId); |
| limHeartBeatDeactivateAndChangeTimer(pMac, psessionEntry); |
| MTRACE(macTrace(pMac, TRACE_CODE_TIMER_ACTIVATE, psessionEntry->peSessionId, eLIM_HEART_BEAT_TIMER)); |
| if (limActivateHearBeatTimer(pMac, psessionEntry) != TX_SUCCESS) |
| limLog(pMac, LOGP, FL("could not activate Heartbeat timer")); |
| } |
| |
| return eSIR_SUCCESS; |
| } /*** end limHandleIBSScoalescing() ***/ |
| |
| |
| void limIbssHeartBeatHandle(tpAniSirGlobal pMac,tpPESession psessionEntry) |
| { |
| tLimIbssPeerNode *pTempNode, *pPrevNode; |
| tLimIbssPeerNode *pTempNextNode = NULL; |
| tANI_U16 peerIdx=0; |
| tpDphHashNode pStaDs=0; |
| tANI_U32 threshold=0; |
| tANI_U16 staIndex=0; |
| tANI_U8 ucUcastSig=0; |
| tANI_U8 ucBcastSig=0; |
| |
| /** MLM BSS is started and if PE in scanmode then MLM state will be waiting for probe resp. |
| * If Heart beat timeout triggers during this corner case then we need to reactivate HeartBeat timer |
| */ |
| if(psessionEntry->limMlmState != eLIM_MLM_BSS_STARTED_STATE) { |
| /****** |
| * Note: Use this code once you have converted all |
| * limReactivateHeartBeatTimer() calls to |
| * limReactivateTimer() calls. |
| * |
| ******/ |
| //limReactivateTimer(pMac, eLIM_HEART_BEAT_TIMER, psessionEntry); |
| limReactivateHeartBeatTimer(pMac, psessionEntry); |
| return; |
| } |
| /** If LinkMonitor is Disabled */ |
| if(!pMac->sys.gSysEnableLinkMonitorMode) |
| return; |
| |
| pPrevNode = pTempNode = pMac->lim.gLimIbssPeerList; |
| threshold = (pMac->lim.gLimNumIbssPeers / 4 ) + 1; |
| |
| /** Monitor the HeartBeat with the Individual PEERS in the IBSS */ |
| while (pTempNode != NULL) |
| { |
| pTempNextNode = pTempNode->next; |
| if(pTempNode->beaconHBCount) //There was a beacon for this peer during heart beat. |
| { |
| pTempNode->beaconHBCount = 0; |
| pTempNode->heartbeatFailure = 0; |
| } |
| else //There wasnt any beacon received during heartbeat timer. |
| { |
| pTempNode->heartbeatFailure++; |
| PELOGE(limLog(pMac, LOGE, FL("Heartbeat fail = %d thres = %d"), pTempNode->heartbeatFailure, pMac->lim.gLimNumIbssPeers);) |
| if(pTempNode->heartbeatFailure >= threshold ) |
| { |
| //Remove this entry from the list. |
| pStaDs = dphLookupHashEntry(pMac, pTempNode->peerMacAddr, &peerIdx, &psessionEntry->dph.dphHashTable); |
| if (pStaDs) |
| { |
| staIndex = pStaDs->staIndex; |
| ucUcastSig = pStaDs->ucUcastSig; |
| ucBcastSig = pStaDs->ucBcastSig; |
| |
| #ifdef WLAN_FEATURE_RMC |
| limRmcTransmitterDelete(pMac, pStaDs->staAddr); |
| #endif /* WLAN_FEATURE_RMC */ |
| |
| (void) limDelSta(pMac, pStaDs, false /*asynchronous*/,psessionEntry); |
| limDeleteDphHashEntry(pMac, pStaDs->staAddr, peerIdx,psessionEntry); |
| limReleasePeerIdx(pMac, peerIdx, psessionEntry); |
| //Send indication. |
| ibss_status_chg_notify( pMac, pTempNode->peerMacAddr, staIndex, |
| ucUcastSig, ucBcastSig, |
| eWNI_SME_IBSS_PEER_DEPARTED_IND, |
| psessionEntry->smeSessionId ); |
| } |
| if(pTempNode == pMac->lim.gLimIbssPeerList) |
| { |
| pMac->lim.gLimIbssPeerList = pTempNode->next; |
| pPrevNode = pMac->lim.gLimIbssPeerList; |
| } |
| else |
| pPrevNode->next = pTempNode->next; |
| |
| vos_mem_free(pTempNode); |
| pMac->lim.gLimNumIbssPeers--; |
| |
| pTempNode = pTempNextNode; //Since we deleted current node, prevNode remains same. |
| continue; |
| } |
| } |
| |
| pPrevNode = pTempNode; |
| pTempNode = pTempNextNode; |
| } |
| |
| /** General IBSS Activity Monitor, check if in IBSS Mode we are received any Beacons */ |
| if(pMac->lim.gLimNumIbssPeers) |
| { |
| if(psessionEntry->LimRxedBeaconCntDuringHB < MAX_NO_BEACONS_PER_HEART_BEAT_INTERVAL) |
| pMac->lim.gLimHeartBeatBeaconStats[psessionEntry->LimRxedBeaconCntDuringHB]++; |
| else |
| pMac->lim.gLimHeartBeatBeaconStats[0]++; |
| |
| limReactivateHeartBeatTimer(pMac, psessionEntry); |
| |
| // Reset number of beacons received |
| limResetHBPktCount(psessionEntry); |
| return; |
| } |
| else |
| { |
| |
| PELOGW(limLog(pMac, LOGW, FL("Heartbeat Failure"));) |
| pMac->lim.gLimHBfailureCntInLinkEstState++; |
| |
| if (psessionEntry->limIbssActive == true) |
| { |
| // We don't receive Beacon frames from any |
| // other STA in IBSS. Announce IBSS inactive |
| // to Roaming algorithm |
| PELOGW(limLog(pMac, LOGW, FL("Alone in IBSS"));) |
| psessionEntry->limIbssActive = false; |
| |
| limSendSmeWmStatusChangeNtf(pMac, eSIR_SME_IBSS_INACTIVE, |
| NULL, 0, psessionEntry->smeSessionId); |
| } |
| } |
| } |
| |
| |
| /** ------------------------------------------------------------- |
| \fn limIbssDecideProtectionOnDelete |
| \brief Decides all the protection related information. |
| \ |
| \param tpAniSirGlobal pMac |
| \param tSirMacAddr peerMacAddr |
| \param tpUpdateBeaconParams pBeaconParams |
| \return None |
| -------------------------------------------------------------*/ |
| void |
| limIbssDecideProtectionOnDelete(tpAniSirGlobal pMac, |
| tpDphHashNode pStaDs, tpUpdateBeaconParams pBeaconParams, tpPESession psessionEntry) |
| { |
| tANI_U32 phyMode; |
| tHalBitVal erpEnabled = eHAL_CLEAR; |
| tSirRFBand rfBand = SIR_BAND_UNKNOWN; |
| tANI_U32 i; |
| |
| if(NULL == pStaDs) |
| return; |
| |
| limGetRfBand(pMac, &rfBand, psessionEntry); |
| if(SIR_BAND_2_4_GHZ == rfBand) |
| { |
| limGetPhyMode(pMac, &phyMode, psessionEntry); |
| erpEnabled = pStaDs->erpEnabled; |
| //we are HT or 11G and 11B station is getting deleted. |
| if ( ((phyMode == WNI_CFG_PHY_MODE_11G) || psessionEntry->htCapability) |
| && (erpEnabled == eHAL_CLEAR)) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("(%d) A legacy STA is disassociated. Addr is "), |
| psessionEntry->gLim11bParams.numSta); |
| limPrintMacAddr(pMac, pStaDs->staAddr, LOGE);) |
| if (psessionEntry->gLim11bParams.numSta > 0) |
| { |
| for (i=0; i<LIM_PROT_STA_CACHE_SIZE; i++) |
| { |
| if (pMac->lim.protStaCache[i].active) |
| { |
| if (vos_mem_compare(pMac->lim.protStaCache[i].addr, |
| pStaDs->staAddr, sizeof(tSirMacAddr))) |
| { |
| psessionEntry->gLim11bParams.numSta--; |
| pMac->lim.protStaCache[i].active = false; |
| break; |
| } |
| } |
| } |
| } |
| |
| if (psessionEntry->gLim11bParams.numSta == 0) |
| { |
| PELOGE(limLog(pMac, LOGE, FL("No more 11B STA exists. Disable protection. "));) |
| limIbssSetProtection(pMac, false, pBeaconParams,psessionEntry); |
| } |
| } |
| } |
| } |
| |
| /** ----------------------------------------------------------------- |
| \fn __limIbssPeerInactivityHandler |
| \brief Internal function. Deletes FW indicated peer which is inactive |
| \ |
| \param tpAniSirGlobal pMac |
| \param tpPESession psessionEntry |
| \param tpSirIbssPeerInactivityInd peerInactivityInd |
| \return None |
| -----------------------------------------------------------------*/ |
| static void |
| __limIbssPeerInactivityHandler(tpAniSirGlobal pMac, |
| tpPESession psessionEntry, |
| tpSirIbssPeerInactivityInd peerInactivityInd) |
| { |
| if(psessionEntry->limMlmState != eLIM_MLM_BSS_STARTED_STATE) |
| { |
| limReactivateHeartBeatTimer(pMac, psessionEntry); |
| return; |
| } |
| |
| /* delete the peer for which heartbeat is observed */ |
| __limIbssSearchAndDeletePeer (pMac, psessionEntry, peerInactivityInd->peerAddr); |
| |
| } |
| |
| /** ------------------------------------------------------------- |
| \fn limProcessIbssPeerInactivity |
| \brief Peer inactivity message handler |
| \ |
| \param tpAniSirGlobal pMac |
| \param void* buf |
| \return None |
| -------------------------------------------------------------*/ |
| void |
| limProcessIbssPeerInactivity(tpAniSirGlobal pMac, void *buf) |
| { |
| /* |
| * --------------- HEARTBEAT OFFLOAD CASE ------------------ |
| * This message handler is executed when the firmware identifies |
| * inactivity from one or more peer devices. We will come here |
| * for every inactive peer device |
| */ |
| tANI_U8 i; |
| |
| tSirIbssPeerInactivityInd *peerInactivityInd = |
| (tSirIbssPeerInactivityInd *) buf; |
| |
| /* |
| * If IBSS is not started or heartbeat offload is not enabled |
| * we should not handle this request |
| */ |
| if (eLIM_STA_IN_IBSS_ROLE != pMac->lim.gLimSystemRole && |
| !IS_IBSS_HEARTBEAT_OFFLOAD_FEATURE_ENABLE) |
| { |
| return; |
| } |
| |
| /** If LinkMonitor is Disabled */ |
| if (!pMac->sys.gSysEnableLinkMonitorMode) |
| { |
| return; |
| } |
| |
| for (i = 0; i < pMac->lim.maxBssId; i++) |
| { |
| if (VOS_TRUE == pMac->lim.gpSession[i].valid && |
| eSIR_IBSS_MODE == pMac->lim.gpSession[i].bssType) |
| { |
| __limIbssPeerInactivityHandler(pMac, |
| &pMac->lim.gpSession[i], |
| peerInactivityInd); |
| break; |
| } |
| } |
| } |
| |