Пример #1
0
/**************************************************************************************************
 * @fn          afRecv
 *
 * @brief       This function de-muxes an incoming AF data message.
 *
 * input parameters
 *
 * @param       pBuf - Pointer to the RPC message buffer.
 *
 * output parameters
 *
 * None.
 *
 * @return      None.
 **************************************************************************************************
 */
static void afRecv(uint8 *pBuf)
{
  #define ZAP_AF_INC_MSG_HDR  27
  #define ZAP_AF_INC_DAT_MAX (MT_RPC_DATA_MAX - ZAP_AF_INC_MSG_HDR)

  afIncomingMSGPacket_t *pMsg;
  epList_t *pEP;
  uint16 tmp;
  uint8 cmd1 = pBuf[MT_RPC_POS_CMD1];

  pBuf += MT_RPC_FRAME_HDR_SZ;
  if (cmd1 == MT_AF_INCOMING_MSG)
  {
    pEP = afFindEndPointDescList(pBuf[7]);
    tmp = pBuf[16];
  }
  else
  {
    pEP = afFindEndPointDescList(pBuf[16]);
    tmp = BUILD_UINT16(pBuf[25], pBuf[26]);
  }

  if ((pEP == NULL) || (NULL ==
      (pMsg = (afIncomingMSGPacket_t *)osal_msg_allocate(sizeof(afIncomingMSGPacket_t) + tmp))))
  {
    return;
  }

  pMsg->hdr.event = AF_INCOMING_MSG_CMD;
  pBuf = afIncMsgPktParse(cmd1, pBuf, pMsg);

#if ZAP_AF_DATA_REQ_FRAG
  if (pMsg->cmd.DataLength > ZAP_AF_INC_DAT_MAX)
  {
    afRetrieve(*(pEP->epDesc->task_id), pMsg);
  }
  else
#endif
  {
    if (pMsg->cmd.DataLength)
    {
      (void)osal_memcpy(pMsg->cmd.Data, pBuf, pMsg->cmd.DataLength);
    }
    else
    {
      pMsg->cmd.Data = NULL;
    }

    (void)osal_msg_send(*(pEP->epDesc->task_id), (uint8 *)pMsg);
  }
}
Пример #2
0
/*********************************************************************
 * @fn      afRegister
 *
 * @brief   Register an Application's EndPoint description.
 *
 * @param   epDesc - pointer to the Application's endpoint descriptor.
 *
 * NOTE:  The memory that epDesc is pointing to must exist after this call.
 *
 * @return  afStatus_SUCCESS - Registered
 *          afStatus_MEM_FAIL - not enough memory to add descriptor
 *          afStatus_INVALID_PARAMETER - duplicate endpoint
 */
afStatus_t afRegister( endPointDesc_t *epDesc )
{
  if (afFindEndPointDescList(epDesc->endPoint))  // Look for duplicate endpoint.
  {
    return afStatus_INVALID_PARAMETER;
  }

  return ((NULL == afRegisterExtended(epDesc, NULL)) ? afStatus_MEM_FAIL : afStatus_SUCCESS);
}
Пример #3
0
/*********************************************************************
 * @fn      afFindEndPointDesc
 *
 * @brief   Find the endpoint description entry from the endpoint
 *          number.
 *
 * @param   EndPoint - Application Endpoint to look for
 *
 * @return  the address to the endpoint/interface description entry
 */
endPointDesc_t *afFindEndPointDesc( byte EndPoint )
{
  epList_t *epSearch;

  // Look for the endpoint
  epSearch = afFindEndPointDescList( EndPoint );

  if ( epSearch )
    return ( epSearch->epDesc );
  else
    return ( (endPointDesc_t *)NULL );
}
Пример #4
0
/*********************************************************************
 * @fn      afRegister
 *
 * @brief   Register an Application's EndPoint description.
 *
 * @param   epDesc - pointer to the Application's endpoint descriptor.
 *
 * NOTE:  The memory that epDesc is pointing to must exist after this call.
 *
 * @return  afStatus_SUCCESS - Registered
 *          afStatus_MEM_FAIL - not enough memory to add descriptor
 *          afStatus_INVALID_PARAMETER - duplicate endpoint
 */
afStatus_t afRegister( endPointDesc_t *epDesc )
{
  epList_t *ep;
  
  // Look for duplicate endpoint
  if ( afFindEndPointDescList( epDesc->endPoint ) )
    return ( afStatus_INVALID_PARAMETER );
  
  ep = afRegisterExtended( epDesc, NULL );

  return ((ep == NULL) ? afStatus_MEM_FAIL : afStatus_SUCCESS);
}
Пример #5
0
/**************************************************************************************************
 * @fn          afAPSF_ConfigSet
 *
 * @brief       This function attempts to set the fragmentation configuration that corresponds to
 *              the specified EndPoint.
 *
 * input parameters
 *
 * @param       endPoint - The specific EndPoint for which to set the fragmentation configuration.
 * @param       pCfg - A pointer to an APSF configuration structure to fill with values.
 *
 * output parameters
 *
 * None.
 *
 * @return      afStatus_SUCCESS for success.
 *              afStatus_INVALID_PARAMETER if the specified EndPoint is not registered.
 */
afStatus_t afAPSF_ConfigSet(uint8 endPoint, afAPSF_Config_t *pCfg)
{
  epList_t *pList = afFindEndPointDescList(endPoint);

  if (pList == NULL)
  {
    return afStatus_INVALID_PARAMETER;
  }

  (void)osal_memcpy(&pList->apsfCfg, pCfg, sizeof(afAPSF_Config_t));
  return afStatus_SUCCESS;
}
Пример #6
0
/**************************************************************************************************
 * @fn          afAPSF_ConfigGet
 *
 * @brief       This function ascertains the fragmentation configuration that corresponds to
 *              the specified EndPoint.
 *
 * input parameters
 *
 * @param       endPoint - The source EP of a Tx or destination EP of a Rx fragmented message.
 *
 * output parameters
 *
 * @param       pCfg - A pointer to an APSF configuration structure to fill with values.
 *
 * @return      None.
 */
void afAPSF_ConfigGet(uint8 endPoint, afAPSF_Config_t *pCfg)
{
  epList_t *pList = afFindEndPointDescList(endPoint);

  if (pList == NULL)
  {
    pCfg->frameDelay = APSF_DEFAULT_INTERFRAME_DELAY;
    pCfg->windowSize = APSF_DEFAULT_WINDOW_SIZE;
  }
  else
  {
    (void)osal_memcpy(pCfg, &pList->apsfCfg, sizeof(afAPSF_Config_t));
  }
}
Пример #7
0
/*********************************************************************
 * @fn      afGetMatch
 *
 * @brief   Set the allow response flag.
 *
 * @param   ep - Application Endpoint to look for
 * @param   action - true - allow response, false - no response
 *
 * @return  TRUE allow responses, FALSE no response
 */
uint8 afGetMatch( uint8 ep )
{
  epList_t *epSearch;

  // Look for the endpoint
  epSearch = afFindEndPointDescList( ep );

  if ( epSearch )
  {
    if ( epSearch->flags & eEP_AllowMatch )
      return ( TRUE );
    else
      return ( FALSE );
  }
  else
    return ( FALSE );
}
Пример #8
0
/**************************************************************************************************
 * @fn          afSetApplCB
 *
 * @brief       Sets the pointer to the Application Callback function for a
 *              specific EndPoint.
 *
 * input parameters
 *
 * @param       endPoint - The specific EndPoint for which to set Application Callback.
 * @param       pApplFn - A pointer to the Application Callback function.
 *
 * output parameters
 *
 * None.
 *
 * @return      TRUE if success, FALSE if endpoint not found
 */
uint8 afSetApplCB( uint8 endPoint, pApplCB pApplFn )
{
  if ( pApplFn != NULL )
  {
    epList_t *epSearch;

    // Look for the endpoint
    epSearch = afFindEndPointDescList( endPoint );

    if ( epSearch )
    {
      epSearch->pfnApplCB = pApplFn;

      return ( TRUE );
    }
  }

  return ( FALSE );
}
Пример #9
0
/**************************************************************************************************
 * @fn          afCnf
 *
 * @brief       This function de-muxes an incoming AF data confirm message.
 *
 * input parameters
 *
 * @param       pBuf - Pointer to the RPC message buffer.
 *
 * output parameters
 *
 * None.
 *
 * @return      None.
 **************************************************************************************************
 */
static void afCnf(uint8 *pBuf)
{
  pBuf += MT_RPC_FRAME_HDR_SZ;
  epList_t *pEP = afFindEndPointDescList(pBuf[1]);

  if (NULL != pEP)
  {
    afDataConfirm_t *pMsg = (afDataConfirm_t *)osal_msg_allocate(sizeof(afDataConfirm_t));

    if (NULL != pMsg)
    {
      pMsg->hdr.event = AF_DATA_CONFIRM_CMD;
      pMsg->hdr.status = *pBuf++;
      pMsg->endpoint = *pBuf++;
      pMsg->transID = *pBuf;
      osal_msg_send(*(pEP->epDesc->task_id), (uint8 *)pMsg);
    }
  }
}
Пример #10
0
/*********************************************************************
 * @fn      afSetMatch
 *
 * @brief   Set the allow response flag.
 *
 * @param   ep - Application Endpoint to look for
 * @param   action - true - allow response, false - no response
 *
 * @return  TRUE if success, FALSE if endpoint not found
 */
uint8 afSetMatch( uint8 ep, uint8 action )
{
  epList_t *epSearch;

  // Look for the endpoint
  epSearch = afFindEndPointDescList( ep );

  if ( epSearch )
  {
    if ( action )
    {
      epSearch->flags |= eEP_AllowMatch;
    }
    else
    {
      epSearch->flags &= (eEP_AllowMatch ^ 0xFFFF);
    }
    return ( TRUE );
  }
  else
    return ( FALSE );
}
Пример #11
0
/*********************************************************************
 * @fn      afFindSimpleDesc
 *
 * @brief   Find the Simple Descriptor from the endpoint number.
 *
 * @param   EP - Application Endpoint to look for.
 *
 * @return  Non-zero to indicate that the descriptor memory must be freed.
 */
byte afFindSimpleDesc( SimpleDescriptionFormat_t **ppDesc, byte EP )
{
  epList_t *epItem = afFindEndPointDescList( EP );
  byte rtrn = FALSE;

  if ( epItem )
  {
    if ( epItem->pfnDescCB )
    {
      *ppDesc = epItem->pfnDescCB( AF_DESCRIPTOR_SIMPLE, EP );
      rtrn = TRUE;
    }
    else
    {
      *ppDesc = epItem->epDesc->simpleDesc;
    }
  }
  else
  {
    *ppDesc = NULL;
  }

  return rtrn;
}
Пример #12
0
/*********************************************************************
 * @fn          afIncomingData
 *
 * @brief       Transfer a data PDU (ASDU) from the APS sub-layer to the AF.
 *
 * @param       aff  - pointer to APS frame format
 * @param       SrcAddress  - Source address
 * @param       sig - incoming message's link quality
 * @param       SecurityUse - Security enable/disable
 *
 * @return      none
 */
void afIncomingData( aps_FrameFormat_t *aff, zAddrType_t *SrcAddress, uint16 SrcPanId,
                     NLDE_Signal_t *sig, byte SecurityUse, uint32 timestamp )
{
  endPointDesc_t *epDesc = NULL;
  uint16 epProfileID = 0xFFFF;  // Invalid Profile ID
  epList_t *pList = epList;
#if !defined ( APS_NO_GROUPS )    
  uint8 grpEp = APS_GROUPS_EP_NOT_FOUND;
#endif  

  if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
  {
#if !defined ( APS_NO_GROUPS )    
    // Find the first endpoint for this group
    grpEp = aps_FindGroupForEndpoint( aff->GroupID, APS_GROUPS_FIND_FIRST );
    if ( grpEp == APS_GROUPS_EP_NOT_FOUND )
      return;   // No endpoint found

    epDesc = afFindEndPointDesc( grpEp );
    if ( epDesc == NULL )
      return;   // Endpoint descriptor not found

    pList = afFindEndPointDescList( epDesc->endPoint );
#else
    return; // Not supported
#endif    
  }
  else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
  {
    // Set the list
    if ( pList != NULL )
    {
      epDesc = pList->epDesc;
    }
  }
  else if ( (epDesc = afFindEndPointDesc( aff->DstEndPoint )) )
  {
    pList = afFindEndPointDescList( epDesc->endPoint );
  }

  while ( epDesc )
  {
    if ( pList->pfnDescCB )
    {
      uint16 *pID = (uint16 *)(pList->pfnDescCB(
                                 AF_DESCRIPTOR_PROFILE_ID, epDesc->endPoint ));
      if ( pID )
      {
        epProfileID = *pID;
        osal_mem_free( pID );
      }
    }
    else if ( epDesc->simpleDesc )
    {
      epProfileID = epDesc->simpleDesc->AppProfId;
    }

    if ( (aff->ProfileID == epProfileID) ||
         ((epDesc->endPoint == ZDO_EP) && (aff->ProfileID == ZDO_PROFILE_ID)) )
    {
      {
        afBuildMSGIncoming( aff, epDesc, SrcAddress, SrcPanId, sig, SecurityUse, timestamp );
      }
    }

    if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
    {
#if !defined ( APS_NO_GROUPS )      
      // Find the next endpoint for this group
      grpEp = aps_FindGroupForEndpoint( aff->GroupID, grpEp );
      if ( grpEp == APS_GROUPS_EP_NOT_FOUND )
        return;   // No endpoint found

      epDesc = afFindEndPointDesc( grpEp );
      if ( epDesc == NULL )
        return;   // Endpoint descriptor not found

      pList = afFindEndPointDescList( epDesc->endPoint );
#else
      return;
#endif      
    }
    else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
    {
      pList = pList->nextDesc;
      if ( pList )
        epDesc = pList->epDesc;
      else
        epDesc = NULL;
    }
    else
      epDesc = NULL;
  }
}
Пример #13
0
afStatus_t AF_DataRequest( afAddrType_t *dstAddr, endPointDesc_t *srcEP,
                           uint16 cID, uint16 len, uint8 *buf, uint8 *transID,
                           uint8 options, uint8 radius )
{
  pDescCB pfnDescCB;
  ZStatus_t stat;
  APSDE_DataReq_t req;
  afDataReqMTU_t mtu;
  epList_t *pList;

  // Verify source end point
  if ( srcEP == NULL )
  {
    return afStatus_INVALID_PARAMETER;
  }

#if !defined( REFLECTOR )
  if ( dstAddr->addrMode == afAddrNotPresent )
  {
    return afStatus_INVALID_PARAMETER;
  }
#endif

  // Check if route is available before sending data
  if ( options & AF_LIMIT_CONCENTRATOR  )
  {
    if ( dstAddr->addrMode != afAddr16Bit )
    {
      return ( afStatus_INVALID_PARAMETER );
    }

    // First, make sure the destination is not its self, then check for an existing route.
    if ( (dstAddr->addr.shortAddr != NLME_GetShortAddr())
        && (RTG_CheckRtStatus( dstAddr->addr.shortAddr, RT_ACTIVE, (MTO_ROUTE | NO_ROUTE_CACHE) ) != RTG_SUCCESS) )
    {
      // A valid route to a concentrator wasn't found
      return ( afStatus_NO_ROUTE );
    }
  }

  // Validate broadcasting
  if ( ( dstAddr->addrMode == afAddr16Bit     ) ||
       ( dstAddr->addrMode == afAddrBroadcast )    )
  {
    // Check for valid broadcast values
    if( ADDR_NOT_BCAST != NLME_IsAddressBroadcast( dstAddr->addr.shortAddr )  )
    {
      // Force mode to broadcast
      dstAddr->addrMode = afAddrBroadcast;
    }
    else
    {
      // Address is not a valid broadcast type
      if ( dstAddr->addrMode == afAddrBroadcast )
      {
        return afStatus_INVALID_PARAMETER;
      }
    }
  }
  else if ( dstAddr->addrMode != afAddr64Bit &&
            dstAddr->addrMode != afAddrGroup &&
            dstAddr->addrMode != afAddrNotPresent )
  {
    return afStatus_INVALID_PARAMETER;
  }

  // Set destination address
  req.dstAddr.addrMode = dstAddr->addrMode;
  if ( dstAddr->addrMode == afAddr64Bit )
  {
    osal_cpyExtAddr( req.dstAddr.addr.extAddr, dstAddr->addr.extAddr );
  }
  else
  {
    req.dstAddr.addr.shortAddr = dstAddr->addr.shortAddr;
  }

  // This option is to use Wildcard ProfileID in outgoing packets
  if ( options & AF_WILDCARD_PROFILEID )
  {
    req.profileID = ZDO_WILDCARD_PROFILE_ID;
  }
  else
  {
    req.profileID = ZDO_PROFILE_ID;

    if ( (pfnDescCB = afGetDescCB( srcEP )) )
    {
      uint16 *pID = (uint16 *)(pfnDescCB(
                                   AF_DESCRIPTOR_PROFILE_ID, srcEP->endPoint ));
      if ( pID )
      {
        req.profileID = *pID;
        osal_mem_free( pID );
      }
    }
    else if ( srcEP->simpleDesc )
    {
      req.profileID = srcEP->simpleDesc->AppProfId;
    }
  }

  req.txOptions = 0;

  if ( ( options & AF_ACK_REQUEST              ) &&
       ( req.dstAddr.addrMode != AddrBroadcast ) &&
       ( req.dstAddr.addrMode != AddrGroup     )    )
  {
    req.txOptions |=  APS_TX_OPTIONS_ACK;
  }

  if ( options & AF_SKIP_ROUTING )
  {
    req.txOptions |=  APS_TX_OPTIONS_SKIP_ROUTING;
  }

  if ( options & AF_EN_SECURITY )
  {
    req.txOptions |= APS_TX_OPTIONS_SECURITY_ENABLE;
    mtu.aps.secure = TRUE;
  }
  else
  {
    mtu.aps.secure = FALSE;
  }

  if ( options & AF_PREPROCESS )
  {
    req.txOptions |=  APS_TX_OPTIONS_PREPROCESS;
  }

  mtu.kvp = FALSE;

  if ( options & AF_SUPRESS_ROUTE_DISC_NETWORK )
  {
    req.discoverRoute = DISC_ROUTE_INITIATE;
  }
  else
  {
    req.discoverRoute = AF_DataRequestDiscoverRoute;
  }

  req.transID       = *transID;
  req.srcEP         = srcEP->endPoint;
  req.dstEP         = dstAddr->endPoint;
  req.clusterID     = cID;
  req.asduLen       = len;
  req.asdu          = buf;
  req.radiusCounter = radius;
#if defined ( INTER_PAN )
  req.dstPanId      = dstAddr->panId;
#endif // INTER_PAN

  // Look if there is a Callback function registered for this endpoint
  // The callback is used to control the AF Transaction ID used when sending messages
  pList = afFindEndPointDescList( srcEP->endPoint );

  if ( ( pList != NULL ) && ( pList->pfnApplCB != NULL ) )
  {
    pList->pfnApplCB( &req );
  }

#if defined ( INTER_PAN )
  if ( StubAPS_InterPan( dstAddr->panId, dstAddr->endPoint ) )
  {
    if ( len > INTERP_DataReqMTU() )
    {
      stat = afStatus_INVALID_PARAMETER;
    }
    else
    {
      stat = INTERP_DataReq( &req );
    }
  }
  else
#endif // INTER_PAN
  {
    if (len > afDataReqMTU( &mtu ) )
    {
      if (apsfSendFragmented)
      {
        stat = (*apsfSendFragmented)( &req );
      }
      else
      {
        stat = afStatus_INVALID_PARAMETER;
      }
    }
    else
    {
      stat = APSDE_DataReq( &req );
    }
  }

  /*
   * If this is an EndPoint-to-EndPoint message on the same device, it will not
   * get added to the NWK databufs. So it will not go OTA and it will not get
   * a MACCB_DATA_CONFIRM_CMD callback. Thus it is necessary to generate the
   * AF_DATA_CONFIRM_CMD here. Note that APSDE_DataConfirm() only generates one
   * message with the first in line TransSeqNumber, even on a multi message.
   * Also note that a reflected msg will not have its confirmation generated
   * here.
   */
  if ( (req.dstAddr.addrMode == Addr16Bit) &&
       (req.dstAddr.addr.shortAddr == NLME_GetShortAddr()) )
  {
    afDataConfirm( srcEP->endPoint, *transID, stat );
  }

  if ( stat == afStatus_SUCCESS )
  {
    (*transID)++;
  }

  return (afStatus_t)stat;
}
Пример #14
0
/*********************************************************************
 * @fn          afIncomingData
 *
 * @brief       Transfer a data PDU (ASDU) from the APS sub-layer to the AF.
 *
 * @param       aff  - pointer to APS frame format
 * @param       SrcAddress  - Source address
 * @param       SrcPanId  - Source PAN ID
 * @param       sig - incoming message's link quality
 * @param       nwkSeqNum - incoming network sequence number (from nwk header frame)
 * @param       SecurityUse - Security enable/disable
 * @param       timestamp - the MAC Timer2 timestamp at Rx.
 * @param       radius - incoming messages received radius
 *
 * @return      none
 */
void afIncomingData( aps_FrameFormat_t *aff, zAddrType_t *SrcAddress, uint16 SrcPanId,
                     NLDE_Signal_t *sig, uint8 nwkSeqNum, uint8 SecurityUse,
                     uint32 timestamp, uint8 radius )
{
  endPointDesc_t *epDesc = NULL;
  epList_t *pList = epList;
#if !defined ( APS_NO_GROUPS )
  uint8 grpEp = APS_GROUPS_EP_NOT_FOUND;
#endif

  if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
  {
#if !defined ( APS_NO_GROUPS )
    // Find the first endpoint for this group
    grpEp = aps_FindGroupForEndpoint( aff->GroupID, APS_GROUPS_FIND_FIRST );
    if ( grpEp == APS_GROUPS_EP_NOT_FOUND )
      return;   // No endpoint found

    epDesc = afFindEndPointDesc( grpEp );
    if ( epDesc == NULL )
      return;   // Endpoint descriptor not found

    pList = afFindEndPointDescList( epDesc->endPoint );
#else
    return; // Not supported
#endif
  }
  else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
  {
    // Set the list
    if ( pList != NULL )
    {
      epDesc = pList->epDesc;
    }
  }
  else if ( (epDesc = afFindEndPointDesc( aff->DstEndPoint )) )
  {
    pList = afFindEndPointDescList( epDesc->endPoint );
  }

  while ( epDesc )
  {
    uint16 epProfileID = 0xFFFE;  // Invalid Profile ID

    if ( pList->pfnDescCB )
    {
      uint16 *pID = (uint16 *)(pList->pfnDescCB(
                                 AF_DESCRIPTOR_PROFILE_ID, epDesc->endPoint ));
      if ( pID )
      {
        epProfileID = *pID;
        osal_mem_free( pID );
      }
    }
    else if ( epDesc->simpleDesc )
    {
      epProfileID = epDesc->simpleDesc->AppProfId;
    }

    // First part of verification is to make sure that:
    // the local Endpoint ProfileID matches the received ProfileID OR
    // the message is specifically send to ZDO (this excludes the broadcast endpoint) OR
    // if the Wildcard ProfileID is received the message should not be sent to ZDO endpoint
    if ( (aff->ProfileID == epProfileID) ||
         ((epDesc->endPoint == ZDO_EP) && (aff->ProfileID == ZDO_PROFILE_ID)) ||
         ((epDesc->endPoint != ZDO_EP) && ( aff->ProfileID == ZDO_WILDCARD_PROFILE_ID )) )
    {
      // Save original endpoint
      uint8 endpoint = aff->DstEndPoint;

      // overwrite with descriptor's endpoint
      aff->DstEndPoint = epDesc->endPoint;

      afBuildMSGIncoming( aff, epDesc, SrcAddress, SrcPanId, sig,
                         nwkSeqNum, SecurityUse, timestamp, radius );

      // Restore with original endpoint
      aff->DstEndPoint = endpoint;
    }

    if ( ((aff->FrmCtrl & APS_DELIVERYMODE_MASK) == APS_FC_DM_GROUP) )
    {
#if !defined ( APS_NO_GROUPS )
      // Find the next endpoint for this group
      grpEp = aps_FindGroupForEndpoint( aff->GroupID, grpEp );
      if ( grpEp == APS_GROUPS_EP_NOT_FOUND )
        return;   // No endpoint found

      epDesc = afFindEndPointDesc( grpEp );
      if ( epDesc == NULL )
        return;   // Endpoint descriptor not found

      pList = afFindEndPointDescList( epDesc->endPoint );
#else
      return;
#endif
    }
    else if ( aff->DstEndPoint == AF_BROADCAST_ENDPOINT )
    {
      pList = pList->nextDesc;
      if ( pList )
        epDesc = pList->epDesc;
      else
        epDesc = NULL;
    }
    else
      epDesc = NULL;
  }
}