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.

1 files changed, 125 insertions, 0 deletions

diff --git a/rtems/freebsd/netinet6/dest6.c b/rtems/freebsd/netinet6/dest6.c
new file mode 100644
index 00000000..c7824dc8
--- /dev/null
+++ b/rtems/freebsd/netinet6/dest6.c
@@ -0,0 +1,125 @@
+#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: dest6.c,v 1.59 2003/07/11 13:21:16 t-momose 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/systm.h>
+#include <rtems/freebsd/sys/malloc.h>
+#include <rtems/freebsd/sys/mbuf.h>
+#include <rtems/freebsd/sys/domain.h>
+#include <rtems/freebsd/sys/protosw.h>
+#include <rtems/freebsd/sys/socket.h>
+#include <rtems/freebsd/sys/errno.h>
+#include <rtems/freebsd/sys/time.h>
+#include <rtems/freebsd/sys/kernel.h>
+
+#include <rtems/freebsd/net/if.h>
+#include <rtems/freebsd/net/route.h>
+
+#include <rtems/freebsd/netinet/in.h>
+#include <rtems/freebsd/netinet/in_var.h>
+#include <rtems/freebsd/netinet/ip6.h>
+#include <rtems/freebsd/netinet6/ip6_var.h>
+#include <rtems/freebsd/netinet/icmp6.h>
+
+/*
+ * Destination options header processing.
+ */
+int
+dest6_input(struct mbuf **mp, int *offp, int proto)
+{
+	struct mbuf *m = *mp;
+	int off = *offp, dstoptlen, optlen;
+	struct ip6_dest *dstopts;
+	u_int8_t *opt;
+
+	/* validation of the length of the header */
+#ifndef PULLDOWN_TEST
+	IP6_EXTHDR_CHECK(m, off, sizeof(*dstopts), IPPROTO_DONE);
+	dstopts = (struct ip6_dest *)(mtod(m, caddr_t) + off);
+#else
+	IP6_EXTHDR_GET(dstopts, struct ip6_dest *, m, off, sizeof(*dstopts));
+	if (dstopts == NULL)
+		return IPPROTO_DONE;
+#endif
+	dstoptlen = (dstopts->ip6d_len + 1) << 3;
+
+#ifndef PULLDOWN_TEST
+	IP6_EXTHDR_CHECK(m, off, dstoptlen, IPPROTO_DONE);
+	dstopts = (struct ip6_dest *)(mtod(m, caddr_t) + off);
+#else
+	IP6_EXTHDR_GET(dstopts, struct ip6_dest *, m, off, dstoptlen);
+	if (dstopts == NULL)
+		return IPPROTO_DONE;
+#endif
+	off += dstoptlen;
+	dstoptlen -= sizeof(struct ip6_dest);
+	opt = (u_int8_t *)dstopts + sizeof(struct ip6_dest);
+
+	/* search header for all options. */
+	for (optlen = 0; dstoptlen > 0; dstoptlen -= optlen, opt += optlen) {
+		if (*opt != IP6OPT_PAD1 &&
+		    (dstoptlen < IP6OPT_MINLEN || *(opt + 1) + 2 > dstoptlen)) {
+			V_ip6stat.ip6s_toosmall++;
+			goto bad;
+		}
+
+		switch (*opt) {
+		case IP6OPT_PAD1:
+			optlen = 1;
+			break;
+		case IP6OPT_PADN:
+			optlen = *(opt + 1) + 2;
+			break;
+		default:		/* unknown option */
+			optlen = ip6_unknown_opt(opt, m,
+			    opt - mtod(m, u_int8_t *));
+			if (optlen == -1)
+				return (IPPROTO_DONE);
+			optlen += 2;
+			break;
+		}
+	}
+
+	*offp = off;
+	return (dstopts->ip6d_nxt);
+
+  bad:
+	m_freem(m);
+	return (IPPROTO_DONE);
+}