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/*
* classifier-pgm.cc
* Copyright (C) 2001 by the University of Southern California
* $Id: classifier-pgm.cc,v 1.4 2006/02/21 15:20:19 mahrenho Exp $
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
*
* The copyright of this module includes the following
* linking-with-specific-other-licenses addition:
*
* In addition, as a special exception, the copyright holders of
* this module give you permission to combine (via static or
* dynamic linking) this module with free software programs or
* libraries that are released under the GNU LGPL and with code
* included in the standard release of ns-2 under the Apache 2.0
* license or under otherwise-compatible licenses with advertising
* requirements (or modified versions of such code, with unchanged
* license). You may copy and distribute such a system following the
* terms of the GNU GPL for this module and the licenses of the
* other code concerned, provided that you include the source code of
* that other code when and as the GNU GPL requires distribution of
* source code.
*
* Note that people who make modified versions of this module
* are not obligated to grant this special exception for their
* modified versions; it is their choice whether to do so. The GNU
* General Public License gives permission to release a modified
* version without this exception; this exception also makes it
* possible to release a modified version which carries forward this
* exception.
*
*/
/*
* Pragmatic General Multicast (PGM), Reliable Multicast
*
* classifier-pgm.cc
*
* This is the classifier used to pick out PGM packets entering a node.
*
* Ryan S. Barnett, 2001
* rbarnett@catarina.usc.edu
*/
#include "config.h"
#ifdef HAVE_STL
#include "config.h"
#include "packet.h"
#include "ip.h"
#include "classifier.h"
class PgmClassifier : public Classifier {
public:
PgmClassifier();
protected:
int classify(Packet *const p)
{
hdr_cmn* h = HDR_CMN(p);
if (h->ptype_ == PT_PGM) {
return 1;
}
else {
return 0;
}
}
};
static class PgmClassifierClass : public TclClass {
public:
PgmClassifierClass() : TclClass("Classifier/Pgm") {}
TclObject* create(int, const char*const*) {
return (new PgmClassifier());
}
} class_pgm_classifier;
PgmClassifier::PgmClassifier() {}
#endif //HAVE_STL
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