1 files changed, 112 insertions, 0 deletions
diff --git a/src/print-ap1394.c b/src/print-ap1394.c
new file mode 100644
index 0000000..a7096fb
--- /dev/null
+++ b/src/print-ap1394.c
@@ -0,0 +1,112 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <netdissect-stdinc.h>
+
+#include "netdissect.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(netdissect_options *ndo, register const u_char *bp, u_int length)
+{
+	register const struct firewire_header *fp;
+	uint16_t firewire_type;
+
+	fp = (const struct firewire_header *)bp;
+
+	ND_PRINT((ndo, "%s > %s",
+		     linkaddr_string(ndo, fp->firewire_shost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN),
+		     linkaddr_string(ndo, fp->firewire_dhost, LINKADDR_IEEE1394, FIREWIRE_EUI64_LEN)));
+
+	firewire_type = EXTRACT_16BITS(&fp->firewire_type);
+	if (!ndo->ndo_qflag) {
+		ND_PRINT((ndo, ", ethertype %s (0x%04x)",
+			       tok2str(ethertype_values,"Unknown", firewire_type),
+                               firewire_type));
+        } else {
+                ND_PRINT((ndo, ", %s", tok2str(ethertype_values,"Unknown Ethertype (0x%04x)", firewire_type)));
+        }
+
+	ND_PRINT((ndo, ", 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(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
+{
+	u_int length = h->len;
+	u_int caplen = h->caplen;
+	const struct firewire_header *fp;
+	u_short ether_type;
+
+	if (caplen < FIREWIRE_HDRLEN) {
+		ND_PRINT((ndo, "[|ap1394]"));
+		return FIREWIRE_HDRLEN;
+	}
+
+	if (ndo->ndo_eflag)
+		ap1394_hdr_print(ndo, p, length);
+
+	length -= FIREWIRE_HDRLEN;
+	caplen -= FIREWIRE_HDRLEN;
+	fp = (const struct firewire_header *)p;
+	p += FIREWIRE_HDRLEN;
+
+	ether_type = EXTRACT_16BITS(&fp->firewire_type);
+	if (ethertype_print(ndo, ether_type, p, length, caplen) == 0) {
+		/* ether_type not known, print raw packet */
+		if (!ndo->ndo_eflag)
+			ap1394_hdr_print(ndo, (const u_char *)fp, length + FIREWIRE_HDRLEN);
+
+		if (!ndo->ndo_suppress_default_print)
+			ND_DEFAULTPRINT(p, caplen);
+	}
+
+	return FIREWIRE_HDRLEN;
+}