/* pppFramingLayer.c - PPP Framing Layer Source File *//* Copyright 1999 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01g,29sep00,sj  merging with TOR2_0-WINDNET_PPP-CUM_PATCH_201f,01aug00,adb  Merging with openstack view01e,29nov99,sj  adding DESCRIPTION for refgen01d,28oct99,sj  upgrading to latest version of framework01c,23aug99,sj  modified for generic framework01b,12jul99,koz  included new framework header files and updated interfaces                 accordingly01a,07jul99,koz  created.*//* includes */#include "stdio.h"#include "stdlib.h"#include "string.h"#include "vxWorks.h"#include "netBufLib.h"#include "net/mbuf.h"#include "pfw/pfw.h"#include "pfw/pfwLayer.h"#include "ppp/pppFramingLayer.h"/*DESCRIPTIONThis module implements the FRAMING_LAYER plug-in object and it resides inthe FRAMING plane.This is a NON_OPERATIONAL layer and in any profile only onecomponent may be configured within this layer.*//* defines *//* typedefs *//* locals *//* forwards */LOCAL STATUS componentAdd (PFW_COMPONENT_OBJ *);LOCAL PFW_PACKET_TYPE packetType (void *);/********************************************************************************* pppFramingLayerCreate - initialize and create the PPP Framing Layer** This routine adds the FRAMING_LAYER plug-in object to the framework** RETURNS: OK or ERROR**/STATUS pppFramingLayerCreate     (    PFW_OBJ * pfw	/* framework we are adding this to */    )    {    PFW_LAYER_OBJ *pFramingLayer;    pFramingLayer = (PFW_LAYER_OBJ *) calloc (1, sizeof (PFW_LAYER_OBJ));       if (pFramingLayer == NULL)	{	pfwPrintError (__FILE__, "pppFramingLayerInit", __LINE__, pfw,0,		    "Unable to allocate memory");	return (ERROR);	}    strcpy(pFramingLayer->pluginObj.name, "FRAMING_LAYER");    pFramingLayer->pluginObj.profileDataSize = 0;    pFramingLayer->pluginObj.stackDataSize = 0;    pFramingLayer->pluginObj.profileDataConstruct = NULL;    pFramingLayer->pluginObj.profileDataCopy = NULL;    pFramingLayer->pluginObj.profileDataDestruct = NULL;    pFramingLayer->pluginObj.stackDataConstruct = NULL;    pFramingLayer->pluginObj.stackDataDestruct = NULL;    pFramingLayer->pluginObj.pfwObj = pfw;    pFramingLayer->planeId = FRAMING_PLANE;    pFramingLayer->position = 2;    pFramingLayer->type = NON_OPERATIONAL_LAYER;    pFramingLayer->componentAdd = componentAdd;    pFramingLayer->packetType = packetType;        if (pfwLayerAdd (pFramingLayer) == ERROR)	{	pfwPrintError (__FILE__, "pppFramingLayerInit", __LINE__,pfw, 0,		    "Framing layer could not be added to the stack");	return (ERROR);	}    return (OK);    }/******************************************************************************** pppFramingLayerDelete - delete the FRAMING_LAYER object from the framework** The FRAMING_LAYER plug-in component object allocated by * pppFramingLayerCreate() is freed if there are no references to this* object from a Stack or Profile object in the framework.** RETURNS: OK or ERROR*/STATUS pppFramingLayerDelete    (    PFW_OBJ *pfw    )    {    PFW_LAYER_OBJ *pFramingLayer;    pFramingLayer = (PFW_LAYER_OBJ *)pfwLayerObjGet (pfw, "FRAMING_LAYER");    if (pFramingLayer == NULL)        return ERROR;    if (pfwLayerDelete (pFramingLayer) == OK)        {        free (pFramingLayer);        return OK;        }    return (ERROR);    }LOCAL STATUS componentAdd        (    PFW_COMPONENT_OBJ *co     )    {    return (OK);    }	LOCAL PFW_PACKET_TYPE packetType     (    void *packet    )    {    struct mbuf *m = (struct mbuf *)packet;    if ((m->m_data[0]&0xff) > 0)	return (CONTROL_PACKET);    return (DATA_PACKET);    }