1/*	$KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the project nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#ifndef _NETIPSEC_KEY_H_
35#define _NETIPSEC_KEY_H_
36
37#ifdef _KERNEL
38
39struct secpolicy;
40struct secpolicyindex;
41struct secasvar;
42struct sockaddr;
43struct socket;
44struct sadb_msg;
45struct sadb_x_policy;
46struct secasindex;
47union sockaddr_union;
48struct xformsw;
49
50struct secpolicy *key_newsp(void);
51struct secpolicy *key_allocsp(struct secpolicyindex *, u_int);
52struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *);
53int key_sp2msg(struct secpolicy *, void *, size_t *);
54void key_addref(struct secpolicy *);
55void key_freesp(struct secpolicy **);
56int key_spdacquire(struct secpolicy *);
57int key_havesp(u_int);
58int key_havesp_any(void);
59void key_bumpspgen(void);
60uint32_t key_getspgen(void);
61uint32_t key_newreqid(void);
62
63struct secasvar *key_allocsa(union sockaddr_union *, uint8_t, uint32_t);
64struct secasvar *key_allocsa_tunnel(union sockaddr_union *,
65    union sockaddr_union *, uint8_t);
66struct secasvar *key_allocsa_policy(struct secpolicy *,
67    const struct secasindex *, int *);
68struct secasvar *key_allocsa_tcpmd5(struct secasindex *);
69void key_freesav(struct secasvar **);
70
71int key_sockaddrcmp(const struct sockaddr *, const struct sockaddr *, int);
72int key_sockaddrcmp_withmask(const struct sockaddr *, const struct sockaddr *,
73    size_t);
74
75int key_register_ifnet(struct secpolicy **, u_int);
76void key_unregister_ifnet(struct secpolicy **, u_int);
77
78void key_delete_xform(const struct xformsw *);
79
80extern u_long key_random(void);
81extern void key_freereg(struct socket *);
82extern int key_parse(struct mbuf *, struct socket *);
83extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
84uint16_t key_portfromsaddr(struct sockaddr *);
85void key_porttosaddr(struct sockaddr *, uint16_t port);
86
87#ifdef MALLOC_DECLARE
88MALLOC_DECLARE(M_IPSEC_SA);
89MALLOC_DECLARE(M_IPSEC_SAH);
90MALLOC_DECLARE(M_IPSEC_SP);
91MALLOC_DECLARE(M_IPSEC_SR);
92MALLOC_DECLARE(M_IPSEC_MISC);
93MALLOC_DECLARE(M_IPSEC_SAQ);
94MALLOC_DECLARE(M_IPSEC_SAR);
95MALLOC_DECLARE(M_IPSEC_INPCB);
96#endif /* MALLOC_DECLARE */
97
98#endif /* defined(_KERNEL) */
99#endif /* _NETIPSEC_KEY_H_ */
100