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/* $NetBSD: mopd.c,v 1.5 1997/10/16 23:25:17 lukem Exp $ */
/*
* Copyright (c) 1993-96 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mats O Jansson.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
#include <sys/cdefs.h>
#ifndef lint
/*__RCSID("$NetBSD: mopd.c,v 1.5 1997/10/16 23:25:17 lukem Exp $");*/
#endif
/*
* mopd - MOP Dump/Load Daemon
*
* Usage: mopd -a [ -d -f -v ] [ -3 | -4 ]
* mopd [ -d -f -v ] [ -3 | -4 ] interface
*/
#include "common/os.h"
#include "common/cmp.h"
#include "common/common.h"
#include "common/device.h"
#include "common/dl.h"
#include "common/get.h"
#include "common/mopdef.h"
#include "common/pf.h"
#include "common/print.h"
#include "process.h"
#include "common/rc.h"
#ifndef __linux__
#include <util.h>
#else
#define pidfile(x) x;
#endif
/*
* The list of all interfaces that are being listened to.
* "selects" on the descriptors in this list.
*/
struct if_info *iflist;
void Usage __P((void));
int main __P((int, char **));
void mopProcess __P((struct if_info *, u_char *));
int AllFlag = 0; /* listen on "all" interfaces */
int DebugFlag = 0; /* print debugging messages */
int ForegroundFlag = 0; /* run in foreground */
int VersionFlag = 0; /* print version */
int Not3Flag = 0; /* Not MOP V3 messages. */
int Not4Flag = 0; /* Not MOP V4 messages. */
int promisc = 1; /* Need promisc mode */
extern char *__progname; /* from crt0.o */
int
main(argc, argv)
int argc;
char **argv;
{
int c, pid;
char *interface;
extern char version[];
while ((c = getopt(argc, argv, "34adfv")) != -1)
switch (c) {
case '3':
Not3Flag++;
break;
case '4':
Not4Flag++;
break;
case 'a':
AllFlag++;
break;
case 'd':
DebugFlag++;
break;
case 'f':
ForegroundFlag++;
break;
case 'v':
VersionFlag++;
break;
default:
Usage();
/* NOTREACHED */
}
if (VersionFlag) {
fprintf(stdout,"%s: version %s\n", __progname, version);
exit(0);
}
interface = argv[optind++];
if ((AllFlag && interface) ||
(!AllFlag && interface == 0) ||
(argc > optind) ||
(Not3Flag && Not4Flag))
Usage();
/* All error reporting is done through syslogs. */
openlog(__progname, LOG_PID | LOG_CONS, LOG_DAEMON);
if ((!ForegroundFlag) && DebugFlag)
fprintf(stdout,
"%s: not running as daemon, -d given.\n", __progname);
if ((!ForegroundFlag) && (!DebugFlag)) {
pid = fork();
if (pid > 0)
/* Parent exits, leaving child in background. */
exit(0);
else
if (pid == -1) {
syslog(LOG_ERR, "cannot fork");
exit(0);
}
/* Fade into the background */
daemon(0, 0);
pidfile(NULL);
}
syslog(LOG_INFO, "%s %s started.", __progname, version);
if (AllFlag)
deviceInitAll();
else
deviceInitOne(interface);
Loop();
/* NOTREACHED */
return (0);
}
void
Usage()
{
(void) fprintf(stderr, "usage: %s -a [ -d -f -v ] [ -3 | -4 ]\n",
__progname);
(void) fprintf(stderr, " %s [ -d -f -v ] [ -3 | -4 ] interface\n",
__progname);
exit(1);
}
/*
* Process incomming packages.
*/
void
mopProcess(ii, pkt)
struct if_info *ii;
u_char *pkt;
{
u_char *dst, *src;
u_short ptype;
int index, trans, len;
/* We don't known with transport, Guess! */
trans = mopGetTrans(pkt, 0);
/* Ok, return if we don't wan't this message */
if ((trans == TRANS_ETHER) && Not3Flag) return;
if ((trans == TRANS_8023) && Not4Flag) return;
index = 0;
mopGetHeader(pkt, &index, &dst, &src, &ptype, &len, trans);
/*
* Ignore our own transmissions
*
*/
if (mopCmpEAddr(ii->eaddr,src) == 0)
return;
switch(ptype) {
case MOP_K_PROTO_DL:
mopProcessDL(stdout, ii, pkt, &index, dst, src, trans, len);
break;
case MOP_K_PROTO_RC:
mopProcessRC(stdout, ii, pkt, &index, dst, src, trans, len);
break;
default:
break;
}
}
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