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/*
* $smu-mark$
* $name: getlhs.c$
* $author: Salvatore Sanfilippo <antirez@invece.org>$
* $copyright: Copyright (C) 1999 by Salvatore Sanfilippo$
* $license: This software is under GPL version 2 of license$
* $date: Fri Nov 5 11:55:47 MET 1999$
* $rev: 8$
*/
/* $Id: getlhs.c,v 1.5 2004/04/09 23:38:56 antirez Exp $ */
#include <string.h>
#include "hping2.h"
#include "globals.h"
int dltype_to_lhs(int dltype)
{
int lhs;
switch(dltype) {
case DLT_EN10MB:
#ifdef DLT_IEEE802
case DLT_IEEE802:
#endif
lhs = 14;
break;
case DLT_SLIP:
case DLT_SLIP_BSDOS:
lhs = 16;
break;
case DLT_PPP:
case DLT_NULL:
#ifdef DLT_PPP_SERIAL
case DLT_PPP_SERIAL:
#endif
#ifdef DLT_LOOP
case DLT_LOOP:
#endif
lhs = 4;
break;
case DLT_PPP_BSDOS:
lhs = 24;
break;
case DLT_FDDI:
lhs = 13;
break;
case DLT_RAW:
lhs = 0;
break;
#ifdef DLT_IEE802_11
case DLT_IEEE802_11:
lhs = 14;
break;
#endif
case DLT_ATM_RFC1483:
#ifdef DLT_CIP
case DLT_CIP:
#endif
#ifdef DLT_ATM_CLIP
case DLT_ATM_CLIP:
#endif
lhs = 8;
break;
#ifdef DLT_C_HDLC
case DLT_C_HDLC:
lhs = 4;
break;
#endif
#ifdef DLT_LINUX_SLL
case DLT_LINUX_SLL:
#endif
#ifdef DLT_LANE8023
case DLT_LANE8023:
#endif
lhs = 16;
break;
default:
return -1;
break;
}
return lhs;
}
int get_linkhdr_size(char *ifname)
{
int dltype = pcap_datalink(pcapfp);
if (opt_debug)
printf("DEBUG: dltype is %d\n", dltype);
linkhdr_size = dltype_to_lhs(dltype);
return linkhdr_size;
}
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