key.h revision 135947 
1/*	$FreeBSD: head/sys/netipsec/key.h 135947 2004-09-30 01:08:02Z sam $	*/
2/*	$KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $	*/
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the project nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#ifndef _NETIPSEC_KEY_H_
34#define _NETIPSEC_KEY_H_
35
36#ifdef _KERNEL
37
38struct secpolicy;
39struct secpolicyindex;
40struct ipsecrequest;
41struct secasvar;
42struct sockaddr;
43struct socket;
44struct sadb_msg;
45struct sadb_x_policy;
46struct secasindex;
47union sockaddr_union;
48
49extern void key_addref(struct secpolicy *sp);
50extern	int key_havesp(u_int dir);
51extern struct secpolicy *key_allocsp(struct secpolicyindex *, u_int,
52	const char*, int);
53extern struct secpolicy *key_allocsp2(u_int32_t spi, union sockaddr_union *dst,
54	u_int8_t proto, u_int dir, const char*, int);
55extern struct secpolicy *key_newsp(const char*, int);
56extern struct secpolicy *key_gettunnel(const struct sockaddr *,
57	const struct sockaddr *, const struct sockaddr *,
58	const struct sockaddr *, const char*, int);
59/* NB: prepend with _ for KAME IPv6 compatbility */
60extern void _key_freesp(struct secpolicy **, const char*, int);
61
62#define	KEY_ALLOCSP(spidx, dir)					\
63	key_allocsp(spidx, dir, __FILE__, __LINE__)
64#define	KEY_ALLOCSP2(spi, dst, proto, dir)			\
65	key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__)
66#define	KEY_NEWSP()						\
67	key_newsp(__FILE__, __LINE__)
68#define	KEY_GETTUNNEL(osrc, odst, isrc, idst)			\
69	key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__)
70#define	KEY_FREESP(spp)						\
71	_key_freesp(spp, __FILE__, __LINE__)
72
73extern struct secasvar *key_allocsa(union sockaddr_union *, u_int, u_int32_t,
74	const char*, int);
75extern void key_freesav(struct secasvar **, const char*, int);
76
77#define	KEY_ALLOCSA(dst, proto, spi)				\
78	key_allocsa(dst, proto, spi, __FILE__, __LINE__)
79#define	KEY_FREESAV(psav)					\
80	key_freesav(psav, __FILE__, __LINE__)
81
82extern void key_freeso __P((struct socket *));
83extern int key_checktunnelsanity __P((struct secasvar *, u_int,
84					caddr_t, caddr_t));
85extern int key_checkrequest
86	__P((struct ipsecrequest *isr, const struct secasindex *));
87
88extern struct secpolicy *key_msg2sp __P((struct sadb_x_policy *,
89	size_t, int *));
90extern struct mbuf *key_sp2msg __P((struct secpolicy *));
91extern int key_ismyaddr __P((struct sockaddr *));
92extern int key_spdacquire __P((struct secpolicy *));
93extern void key_timehandler __P((void));
94extern u_long key_random __P((void));
95extern void key_randomfill __P((void *, size_t));
96extern void key_freereg __P((struct socket *));
97extern int key_parse __P((struct mbuf *, struct socket *));
98extern void key_init __P((void));
99extern void key_sa_recordxfer __P((struct secasvar *, struct mbuf *));
100extern void key_sa_routechange __P((struct sockaddr *));
101extern void key_sa_stir_iv __P((struct secasvar *));
102
103#ifdef MALLOC_DECLARE
104MALLOC_DECLARE(M_IPSEC_SA);
105MALLOC_DECLARE(M_IPSEC_SAH);
106MALLOC_DECLARE(M_IPSEC_SP);
107MALLOC_DECLARE(M_IPSEC_SR);
108MALLOC_DECLARE(M_IPSEC_MISC);
109MALLOC_DECLARE(M_IPSEC_SAQ);
110MALLOC_DECLARE(M_IPSEC_SAR);
111MALLOC_DECLARE(M_IPSEC_INPCB);
112#endif /* MALLOC_DECLARE */
113
114#endif /* defined(_KERNEL) */
115#endif /* _NETIPSEC_KEY_H_ */
116