headertracer.cc

/*
 * Copyright (c) 2006 Regents of the SIGNET lab, University of Padova.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University of Padova (SIGNET lab) nor the 
 *    names of its contributors may be used to endorse or promote products 
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "headertracer.h"
#include "sap.h"
#include "ip.h"
#include "address.h"
#include "packet.h"
#include "mac.h"
#include "smac.h"

/*-------------------------------------------------------------------------------------------------------
        methods for CommonHeaderTracer class
---------------------------------------------------------------------------------------------------------*/ 

CommonHeaderTracer::CommonHeaderTracer() : Tracer(1) {}

void CommonHeaderTracer::format(Packet *p, SAP *sap)
{

        hdr_cmn *ch = hdr_cmn::access(p);
        struct hdr_mac802_11 *mh = HDR_MAC802_11(p);
        struct hdr_smac *sh = HDR_SMAC(p);

        char dir;
        switch (ch->direction())
        {
                case 1:
                        dir = 'u';
                        break;
                case -1:
                        dir = 'd';
                        break;
                case 0:
                        dir = 'n';
                        break;
        }
        
        writeTrace(sap, " %d %s %d %c",
                                ch->uid(),                                                                                                      // unique packet id
                                ((ch->ptype() == PT_MAC) ? (
                                        (mh->dh_fc.fc_subtype == MAC_Subtype_RTS) ? "RTS"  :
                                        (mh->dh_fc.fc_subtype == MAC_Subtype_CTS) ? "CTS"  :
                                        (mh->dh_fc.fc_subtype == MAC_Subtype_ACK) ? "ACK"  :
                                        "UNKN") :
                                        (ch->ptype() == PT_SMAC) ? (
                                        (sh->type == RTS_PKT) ? "RTS" :
                                        (sh->type == CTS_PKT) ? "CTS" :
                                        (sh->type == ACK_PKT) ? "ACK" :
                                        (sh->type == SYNC_PKT) ? "SYNC" :
                                        "UNKN") : 
                                        packet_info.name(ch->ptype())),
                                ch->size(),                                                                                                     // size
                                dir
                                );
        
}

/*-------------------------------------------------------------------------------------------------------
        methods for IpHeaderTracer class
---------------------------------------------------------------------------------------------------------*/ 

IpHeaderTracer::IpHeaderTracer() : Tracer(3) {}

void IpHeaderTracer::format(Packet *p, SAP *sap)
{
        hdr_ip *ih = hdr_ip::access(p);
        hdr_cmn *ch = hdr_cmn::access(p);
        
        int src = Address::instance().get_nodeaddr(ih->saddr());
        int dst = Address::instance().get_nodeaddr(ih->daddr());
        
        writeTrace(sap, " --IP-- [%d:%d %d:%d %d %d]",
                        src, ih->sport(),
                        dst, ih->dport(),
                        ih->ttl_, (ch->next_hop_ < 0) ? 0 : ch->next_hop_
                        );
}

extern "C" int Trace_Init()
{
        /*
        Put here all the commands which must be execute when the library is loaded (i.e. TCL script execution)
        Remember to ruturn 0 if all is OK, otherwise return 1
        */
        SAP::addTracer(new CommonHeaderTracer);
        SAP::addTracer(new IpHeaderTracer);
        return 0;
}
extern "C" int  Cygtrace_Init()
{
  Trace_Init();
}

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