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, 110 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-msdp.c b/freebsd/contrib/tcpdump/print-msdp.c
new file mode 100644
index 00000000..6269c2c2
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-msdp.c
@@ -0,0 +1,110 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (c) 2001 William C. Fenner.
+ *                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, and (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.
+ * The name of William C. Fenner may not 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-msdp.c,v 1.7 2005-04-06 21:32:41 mcr Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#define MSDP_TYPE_MAX	7
+
+void
+msdp_print(const unsigned char *sp, u_int length)
+{
+	unsigned int type, len;
+
+	TCHECK2(*sp, 3);
+	/* See if we think we're at the beginning of a compound packet */
+	type = *sp;
+	len = EXTRACT_16BITS(sp + 1);
+	if (len > 1500 || len < 3 || type == 0 || type > MSDP_TYPE_MAX)
+		goto trunc;	/* not really truncated, but still not decodable */
+	(void)printf(" msdp:");
+	while (length > 0) {
+		TCHECK2(*sp, 3);
+		type = *sp;
+		len = EXTRACT_16BITS(sp + 1);
+		if (len > 1400 || vflag)
+			printf(" [len %u]", len);
+		if (len < 3)
+			goto trunc;
+		sp += 3;
+		length -= 3;
+		switch (type) {
+		case 1:	/* IPv4 Source-Active */
+		case 3: /* IPv4 Source-Active Response */
+			if (type == 1)
+				(void)printf(" SA");
+			else
+				(void)printf(" SA-Response");
+			TCHECK(*sp);
+			(void)printf(" %u entries", *sp);
+			if ((u_int)((*sp * 12) + 8) < len) {
+				(void)printf(" [w/data]");
+				if (vflag > 1) {
+					(void)printf(" ");
+					ip_print(gndo, sp + *sp * 12 + 8 - 3,
+					         len - (*sp * 12 + 8));
+				}
+			}
+			break;
+		case 2:
+			(void)printf(" SA-Request");
+			TCHECK2(*sp, 5);
+			(void)printf(" for %s", ipaddr_string(sp + 1));
+			break;
+		case 4:
+			(void)printf(" Keepalive");
+			if (len != 3)
+				(void)printf("[len=%d] ", len);
+			break;
+		case 5:
+			(void)printf(" Notification");
+			break;
+		default:
+			(void)printf(" [type=%d len=%d]", type, len);
+			break;
+		}
+		sp += (len - 3);
+		length -= (len - 3);
+	}
+	return;
+trunc:
+	(void)printf(" [|msdp]");
+}
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */