Add tcpdump and libpcap.

- Update the file builder generator to handle generator specific cflags and
  includes. The tcpdump and libpcap have localised headers and need specific
  headers paths to see them. There are also module specific flags and these
  need to be passed to the lex and yacc generators.

- Add the tcpdump support.

1 files changed, 137 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-ipfc.c b/freebsd/contrib/tcpdump/print-ipfc.c
new file mode 100644
index 00000000..4e431d32
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-ipfc.c
@@ -0,0 +1,137 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997
+ *	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-ipfc.c,v 1.9 2005-11-13 12:12:42 guy Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <pcap.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "ethertype.h"
+
+#include "ether.h"
+#include "ipfc.h"
+
+/*
+ * RFC 2625 IP-over-Fibre Channel.
+ */
+
+/* Extract src, dst addresses */
+static inline void
+extract_ipfc_addrs(const struct ipfc_header *ipfcp, char *ipfcsrc,
+    char *ipfcdst)
+{
+	/*
+	 * We assume that, as per RFC 2625, the lower 48 bits of the
+	 * source and destination addresses are MAC addresses.
+	 */
+	memcpy(ipfcdst, (const char *)&ipfcp->ipfc_dhost[2], 6);
+	memcpy(ipfcsrc, (const char *)&ipfcp->ipfc_shost[2], 6);
+}
+
+/*
+ * Print the Network_Header
+ */
+static inline void
+ipfc_hdr_print(register const struct ipfc_header *ipfcp _U_,
+	   register u_int length, register const u_char *ipfcsrc,
+	   register const u_char *ipfcdst)
+{
+	const char *srcname, *dstname;
+
+	srcname = etheraddr_string(ipfcsrc);
+	dstname = etheraddr_string(ipfcdst);
+
+	/*
+	 * XXX - show the upper 16 bits?  Do so only if "vflag" is set?
+	 */
+	(void) printf("%s %s %d: ", srcname, dstname, length);
+}
+
+static void
+ipfc_print(const u_char *p, u_int length, u_int caplen)
+{
+	const struct ipfc_header *ipfcp = (const struct ipfc_header *)p;
+	struct ether_header ehdr;
+	u_short extracted_ethertype;
+
+	if (caplen < IPFC_HDRLEN) {
+		printf("[|ipfc]");
+		return;
+	}
+	/*
+	 * Get the network addresses into a canonical form
+	 */
+	extract_ipfc_addrs(ipfcp, (char *)ESRC(&ehdr), (char *)EDST(&ehdr));
+
+	if (eflag)
+		ipfc_hdr_print(ipfcp, length, ESRC(&ehdr), EDST(&ehdr));
+
+	/* Skip over Network_Header */
+	length -= IPFC_HDRLEN;
+	p += IPFC_HDRLEN;
+	caplen -= IPFC_HDRLEN;
+
+	/* Try to print the LLC-layer header & higher layers */
+	if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr),
+	    &extracted_ethertype) == 0) {
+		/*
+		 * Some kinds of LLC packet we cannot
+		 * handle intelligently
+		 */
+		if (!eflag)
+			ipfc_hdr_print(ipfcp, length + IPFC_HDRLEN,
+			    ESRC(&ehdr), EDST(&ehdr));
+		if (extracted_ethertype) {
+			printf("(LLC %s) ",
+		etherproto_string(htons(extracted_ethertype)));
+		}
+		if (!suppress_default_print)
+			default_print(p, caplen);
+	}
+}
+
+/*
+ * This is the top level routine of the printer.  'p' points
+ * to the Network_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
+ipfc_if_print(const struct pcap_pkthdr *h, register const u_char *p)
+{
+	ipfc_print(p, h->len, h->caplen);
+
+	return (IPFC_HDRLEN);
+}