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, 122 insertions, 0 deletions

diff --git a/contrib/pf/rtems/freebsd/netinet/in4_cksum.c b/contrib/pf/rtems/freebsd/netinet/in4_cksum.c
new file mode 100644
index 00000000..bc11aeb9
--- /dev/null
+++ b/contrib/pf/rtems/freebsd/netinet/in4_cksum.c
@@ -0,0 +1,122 @@
+#include <rtems/freebsd/machine/rtems-bsd-config.h>
+
+/*	$FreeBSD$	*/
+/*	$OpenBSD: in4_cksum.c,v 1.7 2003/06/02 23:28:13 millert Exp $	*/
+/*	$KAME: in4_cksum.c,v 1.10 2001/11/30 10:06:15 itojun Exp $	*/
+/*	$NetBSD: in_cksum.c,v 1.13 1996/10/13 02:03:03 christos Exp $	*/
+
+/*
+ * Copyright (C) 1999 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.
+ */
+
+/*
+ * Copyright (c) 1988, 1992, 1993
+ *	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 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 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 BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)in_cksum.c	8.1 (Berkeley) 6/10/93
+ */
+
+#include <rtems/freebsd/sys/param.h>
+#include <rtems/freebsd/sys/systm.h>
+#include <rtems/freebsd/sys/mbuf.h>
+
+#include <rtems/freebsd/netinet/in.h>
+#include <rtems/freebsd/netinet/in_systm.h>
+#include <rtems/freebsd/netinet/ip.h>
+#include <rtems/freebsd/netinet/ip_var.h>
+
+#include <rtems/freebsd/machine/in_cksum.h>
+
+#define ADDCARRY(x)  (x > 65535 ? x -= 65535 : x)
+#define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; ADDCARRY(sum);}
+
+int in4_cksum(struct mbuf *, u_int8_t, int, int);
+
+int
+in4_cksum(struct mbuf *m, u_int8_t nxt, int off, int len)
+{
+	union {
+		struct ipovly ipov;
+		u_int16_t w[10];
+	} u;
+	union {
+		u_int16_t s[2];
+		u_int32_t l;
+	} l_util;
+
+	u_int16_t *w;
+	int psum;
+	int sum = 0;
+
+	if (nxt != 0) {
+		/* pseudo header */
+		if (off < sizeof(struct ipovly))
+			panic("in4_cksum: offset too short");
+		if (m->m_len < sizeof(struct ip))
+			panic("in4_cksum: bad mbuf chain");
+		bzero(&u.ipov, sizeof(u.ipov));
+		u.ipov.ih_len = htons(len);
+		u.ipov.ih_pr = nxt;
+		u.ipov.ih_src = mtod(m, struct ip *)->ip_src;
+		u.ipov.ih_dst = mtod(m, struct ip *)->ip_dst;
+		w = u.w;
+		/* assumes sizeof(ipov) == 20 */
+		sum += w[0]; sum += w[1]; sum += w[2]; sum += w[3]; sum += w[4];
+		sum += w[5]; sum += w[6]; sum += w[7]; sum += w[8]; sum += w[9];
+	}
+
+	psum = in_cksum_skip(m, len + off, off);
+	psum = ~psum & 0xffff;
+	sum += psum;
+	REDUCE;
+	return (~sum & 0xffff);
+}