1/*	$NetBSD: moptrace.c,v 1.10 2009/10/20 00:51:14 snj Exp $	*/
2
3/*
4 * Copyright (c) 1993-95 Mats O Jansson.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28#ifndef lint
29__RCSID("$NetBSD: moptrace.c,v 1.10 2009/10/20 00:51:14 snj Exp $");
30#endif
31
32/*
33 * moptrace - MOP Trace Utility
34 *
35 * Usage:	moptrace -a [ -d ] [ -3 | -4 ]
36 *		moptrace [ -d ] [ -3 | -4 ] interface
37 */
38
39#include "os.h"
40#include "common.h"
41#include "device.h"
42#include "dl.h"
43#include "get.h"
44#include "mopdef.h"
45#include "pf.h"
46#include "print.h"
47#include "rc.h"
48#include "log.h"
49
50/*
51 * The list of all interfaces that are being listened to.
52 * "selects" on the descriptors in this list.
53 */
54struct if_info *iflist;
55
56__dead static void	Usage(void);
57void	mopProcess(struct if_info *, u_char *);
58
59int     AllFlag = 0;		/* listen on "all" interfaces  */
60int     DebugFlag = 0;		/* print debugging messages    */
61int	Not3Flag = 0;		/* Ignore MOP V3 messages      */
62int	Not4Flag = 0;		/* Ignore MOP V4 messages      */
63int	promisc = 1;		/* Need promisc mode           */
64
65int
66main(int argc, char  **argv)
67{
68	int     op;
69	char   *interface;
70
71	mopInteractive = 1;
72	opterr = 0;
73	while ((op = getopt(argc, argv, "34ad")) != -1) {
74		switch (op) {
75		case '3':
76			Not3Flag++;
77			break;
78		case '4':
79			Not4Flag++;
80			break;
81		case 'a':
82			AllFlag++;
83			break;
84		case 'd':
85			DebugFlag++;
86			break;
87		default:
88			Usage();
89			/* NOTREACHED */
90		}
91	}
92
93	interface = argv[optind++];
94
95	if ((AllFlag && interface) ||
96	    (!AllFlag && interface == 0) ||
97	    (Not3Flag && Not4Flag))
98		Usage();
99
100	if (AllFlag)
101 		deviceInitAll();
102	else
103		deviceInitOne(interface);
104
105	Loop();
106	/* NOTREACHED */
107	return (0);
108}
109
110static void
111Usage(void)
112{
113	(void) fprintf(stderr, "usage: %s -a [ -d ] [ -3 | -4 ]\n",
114		       getprogname());
115	(void) fprintf(stderr, "       %s [ -d ] [ -3 | -4 ] interface\n",
116		       getprogname());
117	exit(1);
118}
119
120/*
121 * Process incoming packages.
122 */
123void
124mopProcess(struct if_info *ii, u_char *pkt)
125{
126	int	 trans;
127
128	/* We don't known which transport, Guess! */
129
130	trans = mopGetTrans(pkt, 0);
131
132	/* Ok, return if we don't want this message */
133
134	if ((trans == TRANS_ETHER) && Not3Flag) return;
135	if ((trans == TRANS_8023) && Not4Flag)	return;
136
137	mopPrintHeader(stdout, pkt, trans);
138	mopPrintMopHeader(stdout, pkt, trans);
139
140	mopDumpDL(stdout, pkt, trans);
141	mopDumpRC(stdout, pkt, trans);
142
143	fprintf(stdout, "\n");
144	fflush(stdout);
145}
146