udp IPv6 support, IPv6/IPv4 tunneling support in kernel,

packet divert at kernel for IPv6/IPv4 translater daemon

This includes queue related patch submitted by jburkhol@home.com.

Submitted by: queue related patch from jburkhol@home.com
Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project

1 files changed, 97 insertions, 0 deletions

diff --git a/sys/net/if_faith.c b/sys/net/if_faith.c
new file mode 100644
index 0000000..0e21af7
--- /dev/null
+++ b/sys/net/if_faith.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 1982, 1986, 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ *
+ * $FreeBSD$
+ */
+/*
+ * derived from
+ *	@(#)if_loop.c	8.1 (Berkeley) 6/10/93
+ * Id: if_loop.c,v 1.22 1996/06/19 16:24:10 wollman Exp
+ */
+
+/*
+ * Loopback interface driver for protocol testing and timing.
+ */
+
+#include "faith.h"
+#if NFAITH > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/netisr.h>
+#include <net/route.h>
+#include <net/bpf.h>
+
+extern int loioctl __P((struct ifnet *, u_long, caddr_t));
+extern int looutput __P((struct ifnet *ifp,
+		struct mbuf *m, struct sockaddr *dst, struct rtentry *rt));
+
+void faithattach __P((void *));
+PSEUDO_SET(faithattach, if_faith);
+static struct ifnet faithif[NFAITH];
+
+#define	FAITHMTU	1500
+
+/* ARGSUSED */
+void
+faithattach(faith)
+	void *faith;
+{
+	register struct ifnet *ifp;
+	register int i;
+
+	for (i = 0; i < NFAITH; i++) {
+		ifp = &faithif[i];
+		bzero(ifp, sizeof(faithif[i]));
+		ifp->if_name = "faith";
+		ifp->if_unit = i;
+		ifp->if_mtu = FAITHMTU;
+		/* Change to BROADCAST experimentaly to announce its prefix. */
+		ifp->if_flags = /* IFF_LOOPBACK */ IFF_BROADCAST | IFF_MULTICAST;
+		ifp->if_ioctl = loioctl;
+		ifp->if_output = looutput;
+		ifp->if_type = IFT_FAITH;
+		ifp->if_snd.ifq_maxlen = ifqmaxlen;
+		ifp->if_hdrlen = 0;
+		ifp->if_addrlen = 0;
+		if_attach(ifp);
+		bpfattach(ifp, DLT_NULL, sizeof(u_int));
+	}
+}
+#endif /* NFAITH > 0 */