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, 207 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-token.c b/freebsd/contrib/tcpdump/print-token.c
new file mode 100644
index 00000000..5d1a44c3
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-token.c
@@ -0,0 +1,207 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996
+ *	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.
+ *
+ * Hacked version of print-ether.c  Larry Lile <lile@stdio.com>
+ *
+ * Further tweaked to more closely resemble print-fddi.c
+ *	Guy Harris <guy@alum.mit.edu>
+ *
+ * $FreeBSD$
+ */
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-token.c,v 1.27 2005-11-13 12:12:43 guy Exp $";
+#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 "extract.h"
+#include "addrtoname.h"
+#include "ethertype.h"
+
+#include "ether.h"
+#include "token.h"
+
+/* Extract src, dst addresses */
+static inline void
+extract_token_addrs(const struct token_header *trp, char *fsrc, char *fdst)
+{
+	memcpy(fdst, (const char *)trp->token_dhost, 6);
+	memcpy(fsrc, (const char *)trp->token_shost, 6);
+}
+
+/*
+ * Print the TR MAC header
+ */
+static inline void
+token_hdr_print(register const struct token_header *trp, register u_int length,
+	   register const u_char *fsrc, register const u_char *fdst)
+{
+	const char *srcname, *dstname;
+
+	srcname = etheraddr_string(fsrc);
+	dstname = etheraddr_string(fdst);
+
+	if (vflag)
+		(void) printf("%02x %02x %s %s %d: ",
+		       trp->token_ac,
+		       trp->token_fc,
+		       srcname, dstname,
+		       length);
+	else
+		printf("%s %s %d: ", srcname, dstname, length);
+}
+
+static const char *broadcast_indicator[] = {
+	"Non-Broadcast", "Non-Broadcast",
+	"Non-Broadcast", "Non-Broadcast",
+	"All-routes",    "All-routes",
+	"Single-route",  "Single-route"
+};
+
+static const char *direction[] = {
+	"Forward", "Backward"
+};
+
+static const char *largest_frame[] = {
+	"516",
+	"1500",
+	"2052",
+	"4472",
+	"8144",
+	"11407",
+	"17800",
+	"??"
+};
+
+u_int
+token_print(const u_char *p, u_int length, u_int caplen)
+{
+	const struct token_header *trp;
+	u_short extracted_ethertype;
+	struct ether_header ehdr;
+	u_int route_len = 0, hdr_len = TOKEN_HDRLEN;
+	int seg;
+
+	trp = (const struct token_header *)p;
+
+	if (caplen < TOKEN_HDRLEN) {
+		printf("[|token-ring]");
+		return hdr_len;
+	}
+
+	/*
+	 * Get the TR addresses into a canonical form
+	 */
+	extract_token_addrs(trp, (char*)ESRC(&ehdr), (char*)EDST(&ehdr));
+
+	/* Adjust for source routing information in the MAC header */
+	if (IS_SOURCE_ROUTED(trp)) {
+		/* Clear source-routed bit */
+		*ESRC(&ehdr) &= 0x7f;
+
+		if (eflag)
+			token_hdr_print(trp, length, ESRC(&ehdr), EDST(&ehdr));
+
+		if (caplen < TOKEN_HDRLEN + 2) {
+			printf("[|token-ring]");
+			return hdr_len;
+		}
+		route_len = RIF_LENGTH(trp);
+		hdr_len += route_len;
+		if (caplen < hdr_len) {
+			printf("[|token-ring]");
+			return hdr_len;
+		}
+		if (vflag) {
+			printf("%s ", broadcast_indicator[BROADCAST(trp)]);
+			printf("%s", direction[DIRECTION(trp)]);
+
+			for (seg = 0; seg < SEGMENT_COUNT(trp); seg++)
+				printf(" [%d:%d]", RING_NUMBER(trp, seg),
+				    BRIDGE_NUMBER(trp, seg));
+		} else {
+			printf("rt = %x", EXTRACT_16BITS(&trp->token_rcf));
+
+			for (seg = 0; seg < SEGMENT_COUNT(trp); seg++)
+				printf(":%x", EXTRACT_16BITS(&trp->token_rseg[seg]));
+		}
+		printf(" (%s) ", largest_frame[LARGEST_FRAME(trp)]);
+	} else {
+		if (eflag)
+			token_hdr_print(trp, length, ESRC(&ehdr), EDST(&ehdr));
+	}
+
+	/* Skip over token ring MAC header and routing information */
+	length -= hdr_len;
+	p += hdr_len;
+	caplen -= hdr_len;
+
+	/* Frame Control field determines interpretation of packet */
+	if (FRAME_TYPE(trp) == TOKEN_FC_LLC) {
+		/* Try to print the LLC-layer header & higher layers */
+		if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr),
+		    &extracted_ethertype) == 0) {
+			/* ether_type not known, print raw packet */
+			if (!eflag)
+				token_hdr_print(trp,
+				    length + TOKEN_HDRLEN + route_len,
+				    ESRC(&ehdr), EDST(&ehdr));
+			if (extracted_ethertype) {
+				printf("(LLC %s) ",
+			etherproto_string(htons(extracted_ethertype)));
+			}
+			if (!suppress_default_print)
+				default_print(p, caplen);
+		}
+	} else {
+		/* Some kinds of TR packet we cannot handle intelligently */
+		/* XXX - dissect MAC packets if frame type is 0 */
+		if (!eflag)
+			token_hdr_print(trp, length + TOKEN_HDRLEN + route_len,
+			    ESRC(&ehdr), EDST(&ehdr));
+		if (!suppress_default_print)
+			default_print(p, caplen);
+	}
+	return (hdr_len);
+}
+
+/*
+ * This is the top level routine of the printer.  'p' points
+ * to the TR 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
+token_if_print(const struct pcap_pkthdr *h, const u_char *p)
+{
+	return (token_print(p, h->len, h->caplen));
+}