1 /* $FreeBSD$ */ 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 38 struct secpolicy; 39 struct secpolicyindex; 40 struct secasvar; 41 struct sockaddr; 42 struct socket; 43 struct sadb_msg; 44 struct sadb_x_policy; 45 struct secasindex; 46 union sockaddr_union; 47 48 struct secpolicy *key_newsp(void); 49 struct secpolicy *key_allocsp(struct secpolicyindex *, u_int); 50 struct secpolicy *key_msg2sp(struct sadb_x_policy *, size_t, int *); 51 int key_sp2msg(struct secpolicy *, void *, size_t *); 52 void key_addref(struct secpolicy *); 53 void key_freesp(struct secpolicy **); 54 int key_spdacquire(struct secpolicy *); 55 int key_havesp(u_int); 56 void key_bumpspgen(void); 57 uint32_t key_getspgen(void); 58 uint32_t key_newreqid(void); 59 60 struct secasvar *key_allocsa(union sockaddr_union *, uint8_t, uint32_t); 61 struct secasvar *key_allocsa_tunnel(union sockaddr_union *, 62 union sockaddr_union *, uint8_t); 63 struct secasvar *key_allocsa_policy(struct secpolicy *, 64 const struct secasindex *, int *); 65 struct secasvar *key_allocsa_tcpmd5(struct secasindex *); 66 void key_freesav(struct secasvar **); 67 68 int key_sockaddrcmp(const struct sockaddr *, const struct sockaddr *, int); 69 int key_sockaddrcmp_withmask(const struct sockaddr *, const struct sockaddr *, 70 size_t); 71 72 int key_register_ifnet(struct secpolicy **, u_int); 73 void key_unregister_ifnet(struct secpolicy **, u_int); 74 75 extern u_long key_random(void); 76 extern void key_randomfill(void *, size_t); 77 extern void key_freereg(struct socket *); 78 extern int key_parse(struct mbuf *, struct socket *); 79 extern void key_init(void); 80 #ifdef VIMAGE 81 extern void key_destroy(void); 82 #endif 83 extern void key_sa_recordxfer(struct secasvar *, struct mbuf *); 84 uint16_t key_portfromsaddr(struct sockaddr *); 85 void key_porttosaddr(struct sockaddr *, uint16_t port); 86 87 #ifdef MALLOC_DECLARE 88 MALLOC_DECLARE(M_IPSEC_SA); 89 MALLOC_DECLARE(M_IPSEC_SAH); 90 MALLOC_DECLARE(M_IPSEC_SP); 91 MALLOC_DECLARE(M_IPSEC_SR); 92 MALLOC_DECLARE(M_IPSEC_MISC); 93 MALLOC_DECLARE(M_IPSEC_SAQ); 94 MALLOC_DECLARE(M_IPSEC_SAR); 95 MALLOC_DECLARE(M_IPSEC_INPCB); 96 #endif /* MALLOC_DECLARE */ 97 98 #endif /* defined(_KERNEL) */ 99 #endif /* _NETIPSEC_KEY_H_ */ 100