1119895Sanholt/* 2152909Sanholt * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000 3152909Sanholt * The Regents of the University of California. All rights reserved. 4139749Simp * 5119895Sanholt * Redistribution and use in source and binary forms, with or without 6119895Sanholt * modification, are permitted provided that: (1) source code distributions 7119895Sanholt * retain the above copyright notice and this paragraph in its entirety, (2) 8119895Sanholt * distributions including binary code include the above copyright notice and 9119895Sanholt * this paragraph in its entirety in the documentation or other materials 10119895Sanholt * provided with the distribution, and (3) all advertising materials mentioning 11119895Sanholt * features or use of this software display the following acknowledgement: 12119895Sanholt * ``This product includes software developed by the University of California, 13119895Sanholt * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14145132Sanholt * the University nor the names of its contributors may be used to endorse 15119895Sanholt * or promote products derived from this software without specific prior 16119895Sanholt * written permission. 17119895Sanholt * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18145132Sanholt * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19119895Sanholt * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20119895Sanholt */ 21119895Sanholt#ifndef lint 22119895Sanholtstatic const char rcsid[] _U_ = 23119895Sanholt "@(#) $Header: /tcpdump/master/tcpdump/print-ap1394.c,v 1.5 2006-02-11 22:12:06 hannes Exp $ (LBL)"; 24119895Sanholt#endif 25119895Sanholt 26145132Sanholt#ifdef HAVE_CONFIG_H 27119895Sanholt#include "config.h" 28119895Sanholt#endif 29145132Sanholt 30119895Sanholt#include <tcpdump-stdinc.h> 31119895Sanholt 32152909Sanholt#include <stdio.h> 33152909Sanholt#include <pcap.h> 34152909Sanholt 35119895Sanholt#include "interface.h" 36119895Sanholt#include "extract.h" 37119895Sanholt#include "addrtoname.h" 38119895Sanholt#include "ethertype.h" 39119895Sanholt 40119895Sanholt/* 41119895Sanholt * Structure of a header for Apple's IP-over-IEEE 1384 BPF header. 42126533Sobrien */ 43119895Sanholt#define FIREWIRE_EUI64_LEN 8 44119895Sanholtstruct firewire_header { 45119895Sanholt u_char firewire_dhost[FIREWIRE_EUI64_LEN]; 46119895Sanholt u_char firewire_shost[FIREWIRE_EUI64_LEN]; 47119895Sanholt u_short firewire_type; 48119895Sanholt}; 49119895Sanholt 50119895Sanholt/* 51119895Sanholt * Length of that header; note that some compilers may pad 52119895Sanholt * "struct firewire_header" to a multiple of 4 bytes, for example, so 53119895Sanholt * "sizeof (struct firewire_header)" may not give the right answer. 54119895Sanholt */ 55119895Sanholt#define FIREWIRE_HDRLEN 18 56119895Sanholt 57145132Sanholtstatic inline void 58145132Sanholtap1394_hdr_print(register const u_char *bp, u_int length) 59145132Sanholt{ 60145132Sanholt register const struct firewire_header *fp; 61145132Sanholt u_int16_t firewire_type; 62119895Sanholt 63119895Sanholt fp = (const struct firewire_header *)bp; 64119895Sanholt 65145132Sanholt (void)printf("%s > %s", 66119895Sanholt linkaddr_string(fp->firewire_dhost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN), 67119895Sanholt linkaddr_string(fp->firewire_shost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN)); 68119895Sanholt 69119895Sanholt firewire_type = EXTRACT_16BITS(&fp->firewire_type); 70119895Sanholt if (!qflag) { 71119895Sanholt (void)printf(", ethertype %s (0x%04x)", 72119895Sanholt tok2str(ethertype_values,"Unknown", firewire_type), 73119895Sanholt firewire_type); 74119895Sanholt } else { 75119895Sanholt (void)printf(", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", firewire_type)); 76119895Sanholt } 77119895Sanholt 78119895Sanholt (void)printf(", length %u: ", length); 79119895Sanholt} 80157617Sanholt 81145132Sanholt/* 82145132Sanholt * This is the top level routine of the printer. 'p' points 83119895Sanholt * to the ether header of the packet, 'h->ts' is the timestamp, 84119895Sanholt * 'h->len' is the length of the packet off the wire, and 'h->caplen' 85119895Sanholt * is the number of bytes actually captured. 86119895Sanholt */ 87119895Sanholtu_int 88119895Sanholtap1394_if_print(const struct pcap_pkthdr *h, const u_char *p) 89119895Sanholt{ 90145132Sanholt u_int length = h->len; 91119895Sanholt u_int caplen = h->caplen; 92145132Sanholt struct firewire_header *fp; 93145132Sanholt u_short ether_type; 94119895Sanholt 95119895Sanholt if (caplen < FIREWIRE_HDRLEN) { 96119895Sanholt printf("[|ap1394]"); 97119895Sanholt return FIREWIRE_HDRLEN; 98119895Sanholt } 99119895Sanholt 100119895Sanholt if (eflag) 101119895Sanholt ap1394_hdr_print(p, length); 102119895Sanholt 103119895Sanholt length -= FIREWIRE_HDRLEN; 104119895Sanholt caplen -= FIREWIRE_HDRLEN; 105119895Sanholt fp = (struct firewire_header *)p; 106119895Sanholt p += FIREWIRE_HDRLEN; 107119895Sanholt 108119895Sanholt ether_type = EXTRACT_16BITS(&fp->firewire_type); 109119895Sanholt if (ethertype_print(gndo, ether_type, p, length, caplen) == 0) { 110119895Sanholt /* ether_type not known, print raw packet */ 111119895Sanholt if (!eflag) 112119895Sanholt ap1394_hdr_print((u_char *)fp, length + FIREWIRE_HDRLEN); 113119895Sanholt 114119895Sanholt if (!suppress_default_print) 115119895Sanholt default_print(p, caplen); 116145132Sanholt } 117119895Sanholt 118119895Sanholt return FIREWIRE_HDRLEN; 119119895Sanholt} 120145132Sanholt