classifier-core.cc

obs网络试验平台

/* Copyright (c) University of Maryland, Baltimore County, 2003.
 * Original Authors: Ramakrishna Shenai, Sunil Gowda and Krishna Sivalingam.
 *
 * This software is developed at the University of Maryland, Baltimore County under
 * grants from Cisco Systems Inc and the University of Maryland, Baltimore County.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation in source and binary forms for non-commercial purposes
 * and without fee is hereby granted, provided that the above copyright
 * notice appear in all copies and that both the copyright notice and
 * this permission notice appear in supporting documentation. and that
 * any documentation, advertising materials, and other materials related
 * to such distribution and use acknowledge that the software was
 * developed by the University of Maryland, Baltimore County.  The name of
 * the University may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * Copyright (C) 2000-2003 Washington State University. All rights reserved.
 * This software was originally developed at Alcatel USA and subsequently modified
 * at Washington State University, Pullman, WA  through research work which was
 * supported by Alcatel USA, Inc and Cisco Systems Inc.

 * The  following notice is in adherence to the Washington State University
 * copyright policy follows.
 *
 * License is granted to copy, to use, and to make and to use derivative
 * works for research and evaluation purposes, provided that Washington
 * State University is acknowledged in all documentation pertaining to any such
 * copy or derivative work. Washington State University grants no other
 * licenses expressed or implied. The Washington State University name
 * should not be used in any advertising without its written permission.
 *
 * WASHINGTON STATE UNIVERSITY MAKES NO REPRESENTATIONS CONCERNING EITHER
 * THE MERCHANTABILITY OF THIS SOFTWARE OR THE SUITABILITY OF THIS SOFTWARE
 * FOR ANY PARTICULAR PURPOSE.  The software is provided "as is"
 *  without express or implied warranty of any kind. These notices must
 * be retained in any copies of any part of this software.
 */
#include "classifier-core.h"

//Constructor -- added by GMG
CoreClassifier:: CoreClassifier() : BaseClassifier()
{
     bind ("bhpProcTime", &proc_time_);
}

// recv method
void CoreClassifier::recv( Packet *pkt, Handler *h = 0 )
{
    assert( address >= 0 );
    assert( pkt != NULL );

    hdr_cmn *ch = hdr_cmn::access( pkt );
    hdr_ip *iph = hdr_ip::access( pkt );

    int src_addr = mshift( iph->saddr() ),
        des_addr = mshift( iph->daddr() );

    // only ipkts (i.e BHP or data-bursts are allowed)
    assert( ch->ptype() == PT_IPKT );
    // the destination cannot be a core node
    assert( des_addr != address_ );

    hdr_IPKT *ipkt = hdr_IPKT::access( pkt );

    char s[100];
    sprintf( s, "Processing ipkt of id: %ld ", ipkt->C_burst_id_ );
    // Debug::debug( s );

    if( iph->prio_ == 1 ) {
        handleControlPacket( pkt );
    } else if( iph->prio_ == 2) {
        handleDataBurst( pkt );
    } else {
        // Debug::debug( "invalid IPKT at Core classsifier:recv() " );
        exit( 1 );
    }
}


// core classifier class defn
static class CoreClassifierClass : public TclClass
{
    public:
        CoreClassifierClass() : TclClass( "Classifier/BaseClassifier/CoreClassifier" ) {;}
        TclObject* create( int, const char*const* ) {
            return( new CoreClassifier() );
        }
}class_CoreClassifier;