From a9153ec3040f54fa52b68e14dafed2aba7b780ae Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@oarcorp.com>
Date: Wed, 7 Mar 2012 09:52:04 -0600
Subject: Initial import

Code is based on FreeBSD 8.2 with USB support from Sebastian Huber
and Thomas Doerfler. Initial TCP/IP stack work is from Kevel Kirspel.
---
 rtems/freebsd/netinet6/route6.c | 111 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 rtems/freebsd/netinet6/route6.c

(limited to 'rtems/freebsd/netinet6/route6.c')

diff --git a/rtems/freebsd/netinet6/route6.c b/rtems/freebsd/netinet6/route6.c
new file mode 100644
index 00000000..524600f5
--- /dev/null
+++ b/rtems/freebsd/netinet6/route6.c
@@ -0,0 +1,111 @@
+#include <rtems/freebsd/machine/rtems-bsd-config.h>
+
+/*-
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * 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.
+ *
+ *	$KAME: route6.c,v 1.24 2001/03/14 03:07:05 itojun Exp $
+ */
+
+#include <rtems/freebsd/sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <rtems/freebsd/local/opt_inet.h>
+#include <rtems/freebsd/local/opt_inet6.h>
+
+#include <rtems/freebsd/sys/param.h>
+#include <rtems/freebsd/sys/mbuf.h>
+#include <rtems/freebsd/sys/socket.h>
+#include <rtems/freebsd/sys/systm.h>
+#include <rtems/freebsd/sys/queue.h>
+
+#include <rtems/freebsd/net/if.h>
+
+#include <rtems/freebsd/netinet/in.h>
+#include <rtems/freebsd/netinet6/in6_var.h>
+#include <rtems/freebsd/netinet/ip6.h>
+#include <rtems/freebsd/netinet6/ip6_var.h>
+#include <rtems/freebsd/netinet6/scope6_var.h>
+
+#include <rtems/freebsd/netinet/icmp6.h>
+
+/*
+ * proto - is unused
+ */
+
+int
+route6_input(struct mbuf **mp, int *offp, int proto)
+{
+	struct ip6_hdr *ip6;
+	struct mbuf *m = *mp;
+	struct ip6_rthdr *rh;
+	int off = *offp, rhlen;
+	struct ip6aux *ip6a;
+
+	ip6a = ip6_findaux(m);
+	if (ip6a) {
+		/* XXX reject home-address option before rthdr */
+		if (ip6a->ip6a_flags & IP6A_SWAP) {
+			V_ip6stat.ip6s_badoptions++;
+			m_freem(m);
+			return IPPROTO_DONE;
+		}
+	}
+
+#ifndef PULLDOWN_TEST
+	IP6_EXTHDR_CHECK(m, off, sizeof(*rh), IPPROTO_DONE);
+	ip6 = mtod(m, struct ip6_hdr *);
+	rh = (struct ip6_rthdr *)((caddr_t)ip6 + off);
+#else
+	ip6 = mtod(m, struct ip6_hdr *);
+	IP6_EXTHDR_GET(rh, struct ip6_rthdr *, m, off, sizeof(*rh));
+	if (rh == NULL) {
+		V_ip6stat.ip6s_tooshort++;
+		return IPPROTO_DONE;
+	}
+#endif
+
+	/*
+	 * While this switch may look gratuitous, leave it in
+	 * in favour of RH2 implementations, etc.
+	 */
+	switch (rh->ip6r_type) {
+	default:
+		/* Unknown routing header type. */
+		if (rh->ip6r_segleft == 0) {
+			rhlen = (rh->ip6r_len + 1) << 3;
+			break;	/* Final dst. Just ignore the header. */
+		}
+		V_ip6stat.ip6s_badoptions++;
+		icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER,
+			    (caddr_t)&rh->ip6r_type - (caddr_t)ip6);
+		return (IPPROTO_DONE);
+	}
+
+	*offp += rhlen;
+	return (rh->ip6r_nxt);
+}
-- 
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