mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 1997 Yen Yen Lim and North Dakota State University
|
|
* 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 Yen Yen Lim and
|
|
North Dakota State University
|
|
* 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.
|
|
*/
|
|
#ifndef lint
|
|
static const char rcsid[] _U_ =
|
|
"@(#) $Header: /tcpdump/master/tcpdump/print-sunatm.c,v 1.8 2004-03-17 23:24:38 guy Exp $ (LBL)";
|
|
#endif
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <tcpdump-stdinc.h>
|
|
|
|
struct mbuf;
|
|
struct rtentry;
|
|
|
|
#include <stdio.h>
|
|
#include <pcap.h>
|
|
|
|
#include "interface.h"
|
|
#include "extract.h"
|
|
#include "addrtoname.h"
|
|
|
|
#include "atm.h"
|
|
#include "atmuni31.h"
|
|
|
|
/* SunATM header for ATM packet */
|
|
#define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */
|
|
#define VPI_POS 1 /* VPI */
|
|
#define VCI_POS 2 /* VCI */
|
|
#define PKT_BEGIN_POS 4 /* Start of the ATM packet */
|
|
|
|
/* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */
|
|
#define PT_LANE 0x01 /* LANE */
|
|
#define PT_LLC 0x02 /* LLC encapsulation */
|
|
|
|
/*
|
|
* This is the top level routine of the printer. 'p' points
|
|
* to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp,
|
|
* 'h->len' is the length of the packet off the wire, and 'h->caplen'
|
|
* is the number of bytes actually captured.
|
|
*/
|
|
u_int
|
|
sunatm_if_print(const struct pcap_pkthdr *h, const u_char *p)
|
|
{
|
|
u_int caplen = h->caplen;
|
|
u_int length = h->len;
|
|
u_short vci;
|
|
u_char vpi;
|
|
u_int traftype;
|
|
|
|
if (caplen < PKT_BEGIN_POS) {
|
|
printf("[|atm]");
|
|
return (caplen);
|
|
}
|
|
|
|
if (eflag) {
|
|
if (p[DIR_POS] & 0x80)
|
|
printf("Tx: ");
|
|
else
|
|
printf("Rx: ");
|
|
}
|
|
|
|
switch (p[DIR_POS] & 0x0f) {
|
|
|
|
case PT_LANE:
|
|
traftype = ATM_LANE;
|
|
break;
|
|
|
|
case PT_LLC:
|
|
traftype = ATM_LLC;
|
|
break;
|
|
|
|
default:
|
|
traftype = ATM_UNKNOWN;
|
|
break;
|
|
}
|
|
|
|
vci = EXTRACT_16BITS(&p[VCI_POS]);
|
|
vpi = p[VPI_POS];
|
|
|
|
p += PKT_BEGIN_POS;
|
|
caplen -= PKT_BEGIN_POS;
|
|
length -= PKT_BEGIN_POS;
|
|
atm_print(vpi, vci, traftype, p, length, caplen);
|
|
|
|
return (PKT_BEGIN_POS);
|
|
}
|