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/* $FreeBSD$ */
/* $KAME: key.h,v 1.32 2003/09/07 05:25:20 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 _NETKEY_KEY_H_
#define _NETKEY_KEY_H_
#ifdef _KERNEL
#include <sys/queue.h>
extern struct key_cb key_cb;
extern TAILQ_HEAD(_satailq, secasvar) satailq;
extern TAILQ_HEAD(_sptailq, secpolicy) sptailq;
struct secpolicy;
struct secpolicyindex;
struct ipsecrequest;
struct secasvar;
struct sockaddr;
struct socket;
struct sadb_msg;
struct sadb_x_policy;
union sockaddr_union;
extern struct secpolicy *key_allocsp(u_int16_t, struct secpolicyindex *,
u_int);
extern struct secpolicy *key_gettunnel(struct sockaddr *,
struct sockaddr *, struct sockaddr *, struct sockaddr *);
extern int key_checkrequest
(struct ipsecrequest *isr, struct secasindex *);
extern struct secasvar *key_allocsa(u_int, caddr_t, caddr_t, u_int, u_int32_t);
extern void key_freesp(struct secpolicy *);
extern void key_freesav(struct secasvar *);
extern struct secpolicy *key_newsp(u_int32_t);
extern struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *);
extern struct mbuf *key_sp2msg(struct secpolicy *);
extern int key_cmpspidx_exactly
(struct secpolicyindex *, struct secpolicyindex *);
extern int key_cmpspidx_withmask
(struct secpolicyindex *, struct secpolicyindex *);
extern int key_spdacquire(struct secpolicy *);
extern void key_timehandler(void *);
extern void key_randomfill(void *, size_t);
extern void key_freereg(struct socket *);
extern int key_parse(struct mbuf *, struct socket *);
extern void key_init(void);
extern int key_checktunnelsanity(struct secasvar *, u_int, caddr_t, caddr_t);
extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
extern void key_sa_routechange(struct sockaddr *);
extern void key_sa_stir_iv(struct secasvar *);
/* to keep compatibility with FAST_IPSEC */
#define KEY_ALLOCSA(dst, proto, spi) \
key_allocsa(((struct sockaddr *)(dst))->sa_family,\
(caddr_t)&(((struct sockaddr_in *)(dst))->sin_addr),\
(caddr_t)&(((struct sockaddr_in *)(dst))->sin_addr),\
proto, spi)
#define KEY_FREESAV(psav) \
key_freesav(*psav)
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_SECA);
#endif /* MALLOC_DECLARE */
#endif /* defined(_KERNEL) */
#endif /* _NETKEY_KEY_H_ */
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