/* $NetBSD: print-ap1394.c,v 1.2 2007/07/24 11:53:42 drochner Exp $ */ /* * 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. */ #include #ifndef lint #if 0 static const char rcsid[] _U_ = "@(#) Header: /tcpdump/master/tcpdump/print-ap1394.c,v 1.3.2.1 2005/07/07 01:24:33 guy Exp (LBL)"; #else __RCSID("$NetBSD: print-ap1394.c,v 1.2 2007/07/24 11:53:42 drochner Exp $"); #endif #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include "interface.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; fp = (const struct firewire_header *)bp; (void)printf("%s > %s", linkaddr_string(fp->firewire_dhost, FIREWIRE_EUI64_LEN), linkaddr_string(fp->firewire_shost, FIREWIRE_EUI64_LEN)); if (!qflag) { (void)printf(", ethertype %s (0x%04x)", tok2str(ethertype_values,"Unknown", ntohs(fp->firewire_type)), ntohs(fp->firewire_type)); } else { (void)printf(", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", ntohs(fp->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; u_short extracted_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 = ntohs(fp->firewire_type); extracted_ether_type = 0; if (ether_encap_print(ether_type, p, length, caplen, &extracted_ether_type) == 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; }