| /* |
| * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that: (1) source code distributions |
| * retain the above copyright notice and this paragraph in its entirety, (2) |
| * distributions including binary code include the above copyright notice and |
| * this paragraph in its entirety in the documentation or other materials |
| * provided with the distribution, and (3) all advertising materials mentioning |
| * features or use of this software display the following acknowledgement: |
| * ``This product includes software developed by the University of California, |
| * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| * the University nor the names of its contributors may be used to endorse |
| * or promote products derived from this software without specific prior |
| * written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| */ |
| #ifndef lint |
| static const char rcsid[] _U_ = |
| "@(#) $Header: /tcpdump/master/tcpdump/print-ap1394.c,v 1.5 2006-02-11 22:12:06 hannes Exp $ (LBL)"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| #include <pcap.h> |
| |
| #include "interface.h" |
| #include "extract.h" |
| #include "addrtoname.h" |
| #include "ethertype.h" |
| |
| /* |
| * Structure of a header for Apple's IP-over-IEEE 1384 BPF header. |
| */ |
| #define FIREWIRE_EUI64_LEN 8 |
| struct firewire_header { |
| u_char firewire_dhost[FIREWIRE_EUI64_LEN]; |
| u_char firewire_shost[FIREWIRE_EUI64_LEN]; |
| u_short firewire_type; |
| }; |
| |
| /* |
| * Length of that header; note that some compilers may pad |
| * "struct firewire_header" to a multiple of 4 bytes, for example, so |
| * "sizeof (struct firewire_header)" may not give the right answer. |
| */ |
| #define FIREWIRE_HDRLEN 18 |
| |
| static inline void |
| ap1394_hdr_print(register const u_char *bp, u_int length) |
| { |
| register const struct firewire_header *fp; |
| u_int16_t firewire_type; |
| |
| fp = (const struct firewire_header *)bp; |
| |
| (void)printf("%s > %s", |
| linkaddr_string(fp->firewire_dhost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN), |
| linkaddr_string(fp->firewire_shost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN)); |
| |
| firewire_type = EXTRACT_16BITS(&fp->firewire_type); |
| if (!qflag) { |
| (void)printf(", ethertype %s (0x%04x)", |
| tok2str(ethertype_values,"Unknown", firewire_type), |
| firewire_type); |
| } else { |
| (void)printf(", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", firewire_type)); |
| } |
| |
| (void)printf(", length %u: ", length); |
| } |
| |
| /* |
| * This is the top level routine of the printer. 'p' points |
| * to the ether header of 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 |
| ap1394_if_print(const struct pcap_pkthdr *h, const u_char *p) |
| { |
| u_int length = h->len; |
| u_int caplen = h->caplen; |
| struct firewire_header *fp; |
| u_short ether_type; |
| |
| if (caplen < FIREWIRE_HDRLEN) { |
| printf("[|ap1394]"); |
| return FIREWIRE_HDRLEN; |
| } |
| |
| if (eflag) |
| ap1394_hdr_print(p, length); |
| |
| length -= FIREWIRE_HDRLEN; |
| caplen -= FIREWIRE_HDRLEN; |
| fp = (struct firewire_header *)p; |
| p += FIREWIRE_HDRLEN; |
| |
| ether_type = EXTRACT_16BITS(&fp->firewire_type); |
| if (ethertype_print(gndo, ether_type, p, length, caplen) == 0) { |
| /* ether_type not known, print raw packet */ |
| if (!eflag) |
| ap1394_hdr_print((u_char *)fp, length + FIREWIRE_HDRLEN); |
| |
| if (!suppress_default_print) |
| default_print(p, caplen); |
| } |
| |
| return FIREWIRE_HDRLEN; |
| } |