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, 142 insertions, 0 deletions

diff --git a/freebsd/contrib/tcpdump/print-hsrp.c b/freebsd/contrib/tcpdump/print-hsrp.c
new file mode 100644
index 00000000..51d4b107
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-hsrp.c
@@ -0,0 +1,142 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright (C) 2001 Julian Cowley
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project 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 BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Cisco Hot Standby Router Protocol (HSRP). */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-hsrp.c,v 1.10 2005-05-06 07:56:52 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+
+/* HSRP op code types. */
+static const char *op_code_str[] = {
+	"hello",
+	"coup",
+	"resign"
+};
+
+/* HSRP states and associated names. */
+static struct tok states[] = {
+	{  0, "initial" },
+	{  1, "learn" },
+	{  2, "listen" },
+	{  4, "speak" },
+	{  8, "standby" },
+	{ 16, "active" },
+	{  0, NULL }
+};
+
+/*
+ * RFC 2281:
+ *
+ *  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |   Version     |   Op Code     |     State     |   Hellotime   |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |   Holdtime    |   Priority    |     Group     |   Reserved    |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                      Authentication  Data                     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                      Authentication  Data                     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                      Virtual IP Address                       |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ */
+
+#define HSRP_AUTH_SIZE	8
+
+/* HSRP protocol header. */
+struct hsrp {
+	u_int8_t	hsrp_version;
+	u_int8_t	hsrp_op_code;
+	u_int8_t	hsrp_state;
+	u_int8_t	hsrp_hellotime;
+	u_int8_t	hsrp_holdtime;
+	u_int8_t	hsrp_priority;
+	u_int8_t	hsrp_group;
+	u_int8_t	hsrp_reserved;
+	u_int8_t	hsrp_authdata[HSRP_AUTH_SIZE];
+	struct in_addr	hsrp_virtaddr;
+};
+
+void
+hsrp_print(register const u_int8_t *bp, register u_int len)
+{
+	struct hsrp *hp = (struct hsrp *) bp;
+
+	TCHECK(hp->hsrp_version);
+	printf("HSRPv%d", hp->hsrp_version);
+	if (hp->hsrp_version != 0)
+		return;
+	TCHECK(hp->hsrp_op_code);
+	printf("-");
+	printf("%s ", tok2strary(op_code_str, "unknown (%d)", hp->hsrp_op_code));
+	printf("%d: ", len);
+	TCHECK(hp->hsrp_state);
+	printf("state=%s ", tok2str(states, "Unknown (%d)", hp->hsrp_state));
+	TCHECK(hp->hsrp_group);
+	printf("group=%d ", hp->hsrp_group);
+	TCHECK(hp->hsrp_reserved);
+	if (hp->hsrp_reserved != 0) {
+		printf("[reserved=%d!] ", hp->hsrp_reserved);
+	}
+	TCHECK(hp->hsrp_virtaddr);
+	printf("addr=%s", ipaddr_string(&hp->hsrp_virtaddr));
+	if (vflag) {
+		printf(" hellotime=");
+		relts_print(hp->hsrp_hellotime);
+		printf(" holdtime=");
+		relts_print(hp->hsrp_holdtime);
+		printf(" priority=%d", hp->hsrp_priority);
+		printf(" auth=\"");
+		if (fn_printn(hp->hsrp_authdata, sizeof(hp->hsrp_authdata),
+		    snapend)) {
+			printf("\"");
+			goto trunc;
+		}
+		printf("\"");
+	}
+	return;
+trunc:
+	printf("[|hsrp]");
+}