/*      $NetBSD: ipsec6.h,v 1.31 2022/10/28 05:18:39 ozaki-r Exp $      */
/*      $FreeBSD: ipsec6.h,v 1.1.4.1 2003/01/24 05:11:35 sam Exp $      */
/*      $KAME: ipsec.h,v 1.44 2001/03/23 08:08:47 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_IPSEC6_H_
#define _NETIPSEC_IPSEC6_H_

#include <net/pfkeyv2.h>
#include <netipsec/keydb.h>
#include <netinet6/in6_pcb.h>

#ifdef _KERNEL
extern int ip6_esp_trans_deflev;
extern int ip6_esp_net_deflev;
extern int ip6_ah_trans_deflev;
extern int ip6_ah_net_deflev;
extern int ip6_ipsec_ecn;
extern struct secpolicy ip6_def_policy;

struct inpcb;
struct tcp6cb;

struct secpolicy *ipsec6_check_policy(struct mbuf *, struct inpcb *,
   int, int *, int *);
size_t ipsec6_hdrsiz_tcp(struct tcpcb *);

void *esp6_ctlinput(int, const struct sockaddr *, void *);
void *ah6_ctlinput(int, const struct sockaddr *, void *);

struct m_tag;
int ipsec6_common_input(struct mbuf **, int *, int);
int ipsec6_common_input_cb(struct mbuf *, struct secasvar *, int, int);
int ipsec6_process_packet(struct mbuf *, const struct ipsecrequest *, int);
#endif /*_KERNEL*/

#endif /* !_NETIPSEC_IPSEC6_H_ */