key.h revision 283901 
1/*	$FreeBSD: stable/10/sys/netipsec/key.h 283901 2015-06-02 03:14:42Z ae $	*/
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);
56#if 0
57extern struct secpolicy *key_gettunnel(const struct sockaddr *,
58	const struct sockaddr *, const struct sockaddr *,
59	const struct sockaddr *, const char*, int);
60#endif
61/* NB: prepend with _ for KAME IPv6 compatbility */
62extern void _key_freesp(struct secpolicy **, const char*, int);
63
64#define	KEY_ALLOCSP(spidx, dir)					\
65	key_allocsp(spidx, dir, __FILE__, __LINE__)
66#define	KEY_ALLOCSP2(spi, dst, proto, dir)			\
67	key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__)
68#define	KEY_NEWSP()						\
69	key_newsp(__FILE__, __LINE__)
70#if 0
71#define	KEY_GETTUNNEL(osrc, odst, isrc, idst)			\
72	key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__)
73#endif
74#define	KEY_FREESP(spp)						\
75	_key_freesp(spp, __FILE__, __LINE__)
76
77extern struct secasvar *key_allocsa(union sockaddr_union *, u_int, u_int32_t,
78	const char*, int);
79extern void key_addrefsa(struct secasvar *, const char*, int);
80extern void key_freesav(struct secasvar **, const char*, int);
81
82#define	KEY_ALLOCSA(dst, proto, spi)				\
83	key_allocsa(dst, proto, spi, __FILE__, __LINE__)
84#define	KEY_ADDREFSA(sav)					\
85	key_addrefsa(sav, __FILE__, __LINE__)
86#define	KEY_FREESAV(psav)					\
87	key_freesav(psav, __FILE__, __LINE__)
88
89extern void key_freeso __P((struct socket *));
90extern int key_checktunnelsanity __P((struct secasvar *, u_int,
91					caddr_t, caddr_t));
92extern int key_checkrequest
93	__P((struct ipsecrequest *isr, const struct secasindex *));
94
95extern struct secpolicy *key_msg2sp __P((struct sadb_x_policy *,
96	size_t, int *));
97extern struct mbuf *key_sp2msg __P((struct secpolicy *));
98extern int key_ismyaddr __P((struct sockaddr *));
99extern int key_spdacquire __P((struct secpolicy *));
100extern void key_timehandler __P((void));
101extern u_long key_random __P((void));
102extern void key_randomfill __P((void *, size_t));
103extern void key_freereg __P((struct socket *));
104extern int key_parse __P((struct mbuf *, struct socket *));
105extern void key_init __P((void));
106#ifdef VIMAGE
107extern void key_destroy(void);
108#endif
109extern void key_sa_recordxfer __P((struct secasvar *, struct mbuf *));
110extern void key_sa_stir_iv __P((struct secasvar *));
111#ifdef IPSEC_NAT_T
112u_int16_t key_portfromsaddr(struct sockaddr *);
113#define	KEY_PORTFROMSADDR(saddr)				\
114	key_portfromsaddr((struct sockaddr *)(saddr))
115#endif
116
117#ifdef MALLOC_DECLARE
118MALLOC_DECLARE(M_IPSEC_SA);
119MALLOC_DECLARE(M_IPSEC_SAH);
120MALLOC_DECLARE(M_IPSEC_SP);
121MALLOC_DECLARE(M_IPSEC_SR);
122MALLOC_DECLARE(M_IPSEC_MISC);
123MALLOC_DECLARE(M_IPSEC_SAQ);
124MALLOC_DECLARE(M_IPSEC_SAR);
125MALLOC_DECLARE(M_IPSEC_INPCB);
126#endif /* MALLOC_DECLARE */
127
128#endif /* defined(_KERNEL) */
129#endif /* _NETIPSEC_KEY_H_ */
130