"Fast IPsec": this is an experimental IPsec implementation that is derived

from the KAME IPsec implementation, but with heavy borrowing and influence
of openbsd.  A key feature of this implementation is that it uses the kernel
crypto framework to do all crypto work so when h/w crypto support is present
IPsec operation is automatically accelerated.  Otherwise the protocol
implementations are rather differet while the SADB and policy management
code is very similar to KAME (for the moment).

Note that this implementation is enabled with a FAST_IPSEC option.  With this
you get all protocols; i.e. there is no FAST_IPSEC_ESP option.

FAST_IPSEC and IPSEC are mutually exclusive; you cannot build both into a
single system.

This software is well tested with IPv4 but should be considered very
experimental (i.e. do not deploy in production environments).  This software
does NOT currently support IPv6.  In fact do not configure FAST_IPSEC and
INET6 in the same system.

Obtained from:	KAME + openbsd
Supported by:	Vernier Networks

1 files changed, 107 insertions, 0 deletions

diff --git a/sys/netipsec/key.h b/sys/netipsec/key.h
new file mode 100644
index 0000000..879a7cf
--- /dev/null
+++ b/sys/netipsec/key.h
@@ -0,0 +1,107 @@
+/*	$FreeBSD$	*/
+/*	$KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $	*/
+
+/*
+ * 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.
+ */
+
+#ifndef _NETIPSEC_KEY_H_
+#define _NETIPSEC_KEY_H_
+
+#ifdef _KERNEL
+
+struct secpolicy;
+struct secpolicyindex;
+struct ipsecrequest;
+struct secasvar;
+struct sockaddr;
+struct socket;
+struct sadb_msg;
+struct sadb_x_policy;
+struct secasindex;
+union sockaddr_union;
+
+extern	int key_havesp(u_int dir);
+extern struct secpolicy *key_allocsp(struct secpolicyindex *, u_int,
+	const char*, int);
+extern struct secpolicy *key_allocsp2(u_int32_t spi, union sockaddr_union *dst,
+	u_int8_t proto, u_int dir, const char*, int);
+extern struct secpolicy *key_newsp(const char*, int);
+extern struct secpolicy *key_gettunnel(const struct sockaddr *,
+	const struct sockaddr *, const struct sockaddr *,
+	const struct sockaddr *, const char*, int);
+/* NB: prepend with _ for KAME IPv6 compatbility */
+extern void _key_freesp(struct secpolicy **, const char*, int);
+
+#define	KEY_ALLOCSP(spidx, dir)					\
+	key_allocsp(spidx, dir, __FILE__, __LINE__)
+#define	KEY_ALLOCSP2(spi, dst, proto, dir)			\
+	key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__)
+#define	KEY_NEWSP()						\
+	key_newsp(__FILE__, __LINE__)
+#define	KEY_GETTUNNEL(osrc, odst, isrc, idst)			\
+	key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__)
+#define	KEY_FREESP(spp)						\
+	_key_freesp(spp, __FILE__, __LINE__)
+
+extern struct secasvar *key_allocsa(union sockaddr_union *, u_int, u_int32_t,
+	const char*, int);
+extern void key_freesav(struct secasvar **, const char*, int);
+
+#define	KEY_ALLOCSA(dst, proto, spi)				\
+	key_allocsa(dst, proto, spi, __FILE__, __LINE__)
+#define	KEY_FREESAV(psav)					\
+	key_freesav(psav, __FILE__, __LINE__)
+
+extern void key_freeso __P((struct socket *));
+extern int key_checktunnelsanity __P((struct secasvar *, u_int,
+					caddr_t, caddr_t));
+extern int key_checkrequest
+	__P((struct ipsecrequest *isr, const struct secasindex *));
+
+extern struct secpolicy *key_msg2sp __P((struct sadb_x_policy *,
+	size_t, int *));
+extern struct mbuf *key_sp2msg __P((struct secpolicy *));
+extern int key_ismyaddr __P((struct sockaddr *));
+extern int key_spdacquire __P((struct secpolicy *));
+extern void key_timehandler __P((void));
+extern u_long key_random __P((void));
+extern void key_randomfill __P((void *, size_t));
+extern void key_freereg __P((struct socket *));
+extern int key_parse __P((struct mbuf *, struct socket *));
+extern void key_init __P((void));
+extern void key_sa_recordxfer __P((struct secasvar *, struct mbuf *));
+extern void key_sa_routechange __P((struct sockaddr *));
+extern void key_sa_stir_iv __P((struct secasvar *));
+
+#ifdef MALLOC_DECLARE
+MALLOC_DECLARE(M_SECA);
+#endif /* MALLOC_DECLARE */
+
+#endif /* defined(_KERNEL) */
+#endif /* _NETIPSEC_KEY_H_ */