Import iked, a new implementation of the IKEv2 protocol.

iked(8) is an automatic keying daemon for IPsec, like isakmpd(8), that
IPsec creates flows and SAs automatically.  Unlike isakmpd, iked(8)
implements the newer IKEv2 protocol instead of IKEv1/ISAKMP.  The
daemon is still work-in-progress and not enabled in the builds, but is
already able to establish IKEv2 sessions with some other IKEv2
implementations as a responder.

with lots of help and debugging by jsg@
ok deraadt@

1 files changed, 62 insertions, 0 deletions

diff --git a/sbin/iked/dh.h b/sbin/iked/dh.h
new file mode 100644
index 00000000000..52982d064a0
--- /dev/null
+++ b/sbin/iked/dh.h
@@ -0,0 +1,62 @@
+/*	$OpenBSD: dh.h,v 1.1 2010/06/03 16:41:12 reyk Exp $	*/
+/*	$vantronix: dh.h,v 1.8 2010/06/02 12:22:58 reyk Exp $	*/
+
+/*
+ * Copyright (c) 2010 Reyk Floeter <reyk@vantronix.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DH_H_
+#define _DH_H_
+
+#include <sys/types.h>
+
+enum group_type {
+	GROUP_MODP	= 0,
+	GROUP_EC	= 1
+};
+
+struct group_id {
+	enum group_type	 type;
+	u_int		 id;
+	int		 bits;
+	char		*prime;
+	char		*generator;
+	int		 nid;
+};
+
+struct group {
+	int		 id;
+	struct group_id	*spec;
+
+	void		*dh;
+	void		*ec;
+
+	int		(*init)(struct group *);
+	int		(*getlen)(struct group *);
+	int		(*exchange)(struct group *, u_int8_t *);
+	int		(*shared)(struct group *, u_int8_t *, u_int8_t *);
+};
+
+void            group_init(void);
+void            group_free(struct group *);
+struct group   *group_get(u_int32_t);
+
+int	dh_init(struct group *);
+int	dh_getlen(struct group *);
+int	dh_create_exchange(struct group *, u_int8_t *);
+int	dh_create_shared(struct group *, u_int8_t *, u_int8_t *);
+void	dh_selftest(void);
+
+#endif /* _DH_H_ */