Imported Upstream version 4.3.0upstream/4.3.0

1 files changed, 128 insertions, 0 deletions

diff --git a/print-ripng.c b/print-ripng.c
new file mode 100644
index 0000000..cef39da
--- /dev/null
+++ b/print-ripng.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 1989, 1990, 1991, 1993, 1994
+ *	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-ripng.c,v 1.18 2005-01-04 00:15:54 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef INET6
+
+#include <tcpdump-stdinc.h>
+#include <stdio.h>
+
+#include "route6d.h"
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+#if !defined(IN6_IS_ADDR_UNSPECIFIED) && !defined(_MSC_VER) /* MSVC inline */
+static int IN6_IS_ADDR_UNSPECIFIED(const struct in6_addr *addr)
+{
+    static const struct in6_addr in6addr_any;        /* :: */
+    return (memcmp(addr, &in6addr_any, sizeof(*addr)) == 0);
+}
+#endif
+
+static int
+rip6_entry_print(register const struct netinfo6 *ni, int metric)
+{
+	int l;
+	l = printf("%s/%d", ip6addr_string(&ni->rip6_dest), ni->rip6_plen);
+	if (ni->rip6_tag)
+		l += printf(" [%d]", EXTRACT_16BITS(&ni->rip6_tag));
+	if (metric)
+		l += printf(" (%d)", ni->rip6_metric);
+	return l;
+}
+
+void
+ripng_print(const u_char *dat, unsigned int length)
+{
+	register const struct rip6 *rp = (struct rip6 *)dat;
+	register const struct netinfo6 *ni;
+	register u_int amt;
+	register u_int i;
+	int j;
+	int trunc;
+
+	if (snapend < dat)
+		return;
+	amt = snapend - dat;
+	i = min(length, amt);
+	if (i < (sizeof(struct rip6) - sizeof(struct netinfo6)))
+		return;
+	i -= (sizeof(struct rip6) - sizeof(struct netinfo6));
+
+	switch (rp->rip6_cmd) {
+
+	case RIP6_REQUEST:
+		j = length / sizeof(*ni);
+		if (j == 1
+		    &&  rp->rip6_nets->rip6_metric == HOPCNT_INFINITY6
+		    &&  IN6_IS_ADDR_UNSPECIFIED(&rp->rip6_nets->rip6_dest)) {
+			printf(" ripng-req dump");
+			break;
+		}
+		if (j * sizeof(*ni) != length - 4)
+			printf(" ripng-req %d[%u]:", j, length);
+		else
+			printf(" ripng-req %d:", j);
+		trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
+		for (ni = rp->rip6_nets; i >= sizeof(*ni);
+		    i -= sizeof(*ni), ++ni) {
+			if (vflag > 1)
+				printf("\n\t");
+			else
+				printf(" ");
+			rip6_entry_print(ni, 0);
+		}
+		break;
+	case RIP6_RESPONSE:
+		j = length / sizeof(*ni);
+		if (j * sizeof(*ni) != length - 4)
+			printf(" ripng-resp %d[%u]:", j, length);
+		else
+			printf(" ripng-resp %d:", j);
+		trunc = ((i / sizeof(*ni)) * sizeof(*ni) != i);
+		for (ni = rp->rip6_nets; i >= sizeof(*ni);
+		    i -= sizeof(*ni), ++ni) {
+			if (vflag > 1)
+				printf("\n\t");
+			else
+				printf(" ");
+			rip6_entry_print(ni, ni->rip6_metric);
+		}
+		if (trunc)
+			printf("[|ripng]");
+		break;
+	default:
+		printf(" ripng-%d ?? %u", rp->rip6_cmd, length);
+		break;
+	}
+	if (rp->rip6_vers != RIP6_VERSION)
+		printf(" [vers %d]", rp->rip6_vers);
+}
+#endif /* INET6 */