166458Sdfr/* 266458Sdfr * Copyright (c) 1997 Yen Yen Lim and North Dakota State University 366458Sdfr * All rights reserved. 466458Sdfr * 566458Sdfr * Redistribution and use in source and binary forms, with or without 666458Sdfr * modification, are permitted provided that the following conditions 766458Sdfr * are met: 866458Sdfr * 1. Redistributions of source code must retain the above copyright 966458Sdfr * notice, this list of conditions and the following disclaimer. 1066458Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1166458Sdfr * notice, this list of conditions and the following disclaimer in the 1266458Sdfr * documentation and/or other materials provided with the distribution. 1366458Sdfr * 3. All advertising materials mentioning features or use of this software 1466458Sdfr * must display the following acknowledgement: 1566458Sdfr * This product includes software developed by Yen Yen Lim and 1666458Sdfr North Dakota State University 1766458Sdfr * 4. The name of the author may not be used to endorse or promote products 1866458Sdfr * derived from this software without specific prior written permission. 1966458Sdfr * 2066458Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2166458Sdfr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2266458Sdfr * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2366458Sdfr * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 2466458Sdfr * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2566458Sdfr * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2666458Sdfr * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2766458Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2866458Sdfr * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 2966458Sdfr * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3066458Sdfr * POSSIBILITY OF SUCH DAMAGE. 3166458Sdfr */ 3266458Sdfr 3366458Sdfr#include <sys/cdefs.h> 3466458Sdfr#ifndef lint 3566458Sdfr__RCSID("$NetBSD: print-sunatm.c,v 1.7 2023/08/17 20:19:40 christos Exp $"); 3666458Sdfr#endif 3766458Sdfr 3866458Sdfr/* \summary: SunATM DLPI capture printer */ 3966458Sdfr 4066458Sdfr#ifdef HAVE_CONFIG_H 4166458Sdfr#include <config.h> 4266458Sdfr#endif 4366458Sdfr 4466458Sdfr#include "netdissect-stdinc.h" 4566458Sdfr 4666458Sdfr#define ND_LONGJMP_FROM_TCHECK 4766458Sdfr#include "netdissect.h" 4866458Sdfr#include "extract.h" 4966458Sdfr 5066458Sdfr#include "atm.h" 5166458Sdfr 52115084Smarcel/* SunATM header for ATM packet */ 53115084Smarcel#define DIR_POS 0 /* Direction (0x80 = transmit, 0x00 = receive) */ 5466458Sdfr#define VPI_POS 1 /* VPI */ 5566458Sdfr#define VCI_POS 2 /* VCI */ 56115084Smarcel#define PKT_BEGIN_POS 4 /* Start of the ATM packet */ 5766458Sdfr 58115084Smarcel/* Protocol type values in the bottom for bits of the byte at SUNATM_DIR_POS. */ 59115084Smarcel#define PT_LANE 0x01 /* LANE */ 60115084Smarcel#define PT_LLC 0x02 /* LLC encapsulation */ 61115084Smarcel 62115084Smarcel/* 63115084Smarcel * This is the top level routine of the printer. 'p' points 64115084Smarcel * to the SunATM pseudo-header for the packet, 'h->ts' is the timestamp, 65115913Smarcel * 'h->len' is the length of the packet off the wire, and 'h->caplen' 66115913Smarcel * is the number of bytes actually captured. 67115913Smarcel */ 68115913Smarcelvoid 69115913Smarcelsunatm_if_print(netdissect_options *ndo, 70115913Smarcel const struct pcap_pkthdr *h, const u_char *p) 71115913Smarcel{ 72115913Smarcel u_int caplen = h->caplen; 7372892Sjhb u_int length = h->len; 7466458Sdfr u_short vci; 7566458Sdfr u_char vpi; 7666458Sdfr u_int traftype; 7766458Sdfr 78118414Smarcel ndo->ndo_protocol = "sunatm"; 79118414Smarcel 80118414Smarcel if (ndo->ndo_eflag) { 81118414Smarcel ND_PRINT(GET_U_1(p + DIR_POS) & 0x80 ? "Tx: " : "Rx: "); 8266458Sdfr } 8366458Sdfr 8466458Sdfr switch (GET_U_1(p + DIR_POS) & 0x0f) { 8566458Sdfr 8666458Sdfr case PT_LANE: 8766458Sdfr traftype = ATM_LANE; 8866458Sdfr break; 8966458Sdfr 9066458Sdfr case PT_LLC: 9166458Sdfr traftype = ATM_LLC; 9266458Sdfr break; 9369003Smarkm 9469003Smarkm default: 9569003Smarkm traftype = ATM_UNKNOWN; 9669003Smarkm break; 97118990Smarcel } 9869003Smarkm 99118990Smarcel vpi = GET_U_1(p + VPI_POS); 100118990Smarcel vci = GET_BE_U_2(p + VCI_POS); 101118990Smarcel 102118990Smarcel p += PKT_BEGIN_POS; 103118990Smarcel caplen -= PKT_BEGIN_POS; 10466458Sdfr length -= PKT_BEGIN_POS; 10566458Sdfr ndo->ndo_ll_hdr_len += PKT_BEGIN_POS; 10666458Sdfr atm_print(ndo, vpi, vci, traftype, p, length, caplen); 107} 108