xref: /freebsd/sys/netipsec/key.h (revision 6549718b70f0e660a15685369afb4f9caf2215ce)
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 
39 struct mbuf;
40 struct secpolicy;
41 struct secpolicyindex;
42 struct secasvar;
43 struct sockaddr;
44 struct socket;
45 struct sadb_msg;
46 struct sadb_x_policy;
47 struct secasindex;
48 union sockaddr_union;
49 struct xformsw;
50 
51 struct secpolicy *key_newsp(void);
52 struct secpolicy *key_allocsp(struct secpolicyindex *, u_int);
53 struct secpolicy *key_do_allocsp(struct secpolicyindex *spidx, u_int dir);
54 struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *);
55 int key_sp2msg(struct secpolicy *, void *, size_t *);
56 void key_addref(struct secpolicy *);
57 void key_freesp(struct secpolicy **);
58 int key_spdacquire(struct secpolicy *);
59 int key_havesp(u_int);
60 int key_havesp_any(void);
61 void key_bumpspgen(void);
62 uint32_t key_getspgen(void);
63 uint32_t key_newreqid(void);
64 struct mbuf *key_setaccelif(const char *ifname);
65 
66 struct secasvar *key_allocsa(union sockaddr_union *, uint8_t, uint32_t);
67 struct secasvar *key_allocsa_tunnel(union sockaddr_union *,
68     union sockaddr_union *, uint8_t);
69 struct secasvar *key_allocsa_policy(struct secpolicy *,
70     const struct secasindex *, int *);
71 struct secasvar *key_allocsa_tcpmd5(struct secasindex *);
72 void key_freesav(struct secasvar **);
73 
74 int key_sockaddrcmp(const struct sockaddr *, const struct sockaddr *, int);
75 int key_sockaddrcmp_withmask(const struct sockaddr *, const struct sockaddr *,
76     size_t);
77 
78 int key_register_ifnet(struct secpolicy **, u_int);
79 void key_unregister_ifnet(struct secpolicy **, u_int);
80 
81 void key_delete_xform(const struct xformsw *);
82 
83 extern u_long key_random(void);
84 extern void key_freereg(struct socket *);
85 extern int key_parse(struct mbuf *, struct socket *);
86 extern void key_sa_recordxfer(struct secasvar *, struct mbuf *);
87 uint16_t key_portfromsaddr(struct sockaddr *);
88 void key_porttosaddr(struct sockaddr *, uint16_t port);
89 
90 struct rm_priotracker;
91 void ipsec_sahtree_runlock(struct rm_priotracker *);
92 void ipsec_sahtree_rlock(struct rm_priotracker *);
93 
94 #ifdef MALLOC_DECLARE
95 MALLOC_DECLARE(M_IPSEC_SA);
96 MALLOC_DECLARE(M_IPSEC_SAH);
97 MALLOC_DECLARE(M_IPSEC_SP);
98 MALLOC_DECLARE(M_IPSEC_SR);
99 MALLOC_DECLARE(M_IPSEC_MISC);
100 MALLOC_DECLARE(M_IPSEC_SAQ);
101 MALLOC_DECLARE(M_IPSEC_SAR);
102 MALLOC_DECLARE(M_IPSEC_INPCB);
103 #endif /* MALLOC_DECLARE */
104 
105 #endif /* defined(_KERNEL) */
106 #endif /* _NETIPSEC_KEY_H_ */
107