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/* $OpenBSD: moptrace.c,v 1.12 2013/07/05 21:02:07 miod Exp $ */
/*
* Copyright (c) 1993-95 Mats O Jansson. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* moptrace - MOP Trace Utility
*
* Usage: moptrace [-3 | -4] [-ad] interface
*/
#include "os.h"
#include "common/common.h"
#include "common/mopdef.h"
#include "common/device.h"
#include "common/print.h"
#include "common/pf.h"
#include "common/dl.h"
#include "common/rc.h"
#include "common/get.h"
/*
* The list of all interfaces that are being listened to.
* "selects" on the descriptors in this list.
*/
struct if_info *iflist;
void Usage(void);
void mopProcess(struct if_info *, u_char *);
int AllFlag = 0; /* listen on "all" interfaces */
int DebugFlag = 0; /* print debugging messages */
int Not3Flag = 0; /* Ignore MOP V3 messages */
int Not4Flag = 0; /* Ignore MOP V4 messages */
int promisc = 1; /* Need promisc mode */
extern char *__progname;
int
main(int argc, char *argv[])
{
int op;
char *interface;
/* All error reporting is done through syslogs. */
openlog(__progname, LOG_PID | LOG_CONS, LOG_DAEMON);
opterr = 0;
while ((op = getopt(argc, argv, "34ad")) != -1) {
switch (op) {
case '3':
Not3Flag++;
break;
case '4':
Not4Flag++;
break;
case 'a':
AllFlag++;
break;
case 'd':
DebugFlag++;
break;
default:
Usage();
/* NOTREACHED */
}
}
interface = argv[optind++];
if ((AllFlag && interface) ||
(!AllFlag && interface == 0) ||
(Not3Flag && Not4Flag))
Usage();
if (AllFlag)
deviceInitAll();
else
deviceInitOne(interface);
Loop();
/* NOTREACHED */
}
void
Usage()
{
fprintf(stderr, "usage: %s [-3 | -4] [-ad] interface\n", __progname);
exit(1);
}
/*
* Process incoming packages.
*/
/* ARGSUSED */
void
mopProcess(struct if_info *ii, u_char *pkt)
{
int trans;
/* We don't known which transport, Guess! */
trans = mopGetTrans(pkt, 0);
/* Ok, return if we don't want this message */
if ((trans == TRANS_ETHER) && Not3Flag) return;
if ((trans == TRANS_8023) && Not4Flag) return;
fprintf(stdout, "Interface : %s", ii->if_name);
mopPrintHeader(stdout, pkt, trans);
mopPrintMopHeader(stdout, pkt, trans);
mopDumpDL(stdout, pkt, trans);
mopDumpRC(stdout, pkt, trans);
fprintf(stdout, "\n");
fflush(stdout);
}
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