1 /* $NetBSD: key.h,v 1.8 2007/07/07 18:38:23 degroote Exp $ */ 2 /* $FreeBSD: src/sys/netipsec/key.h,v 1.1.4.1 2003/01/24 05:11:36 sam Exp $ */ 3 /* $KAME: key.h,v 1.21 2001/07/27 03:51:30 itojun Exp $ */ 4 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 #include "opt_ipsec.h" 40 41 struct secpolicy; 42 struct secpolicyindex; 43 struct ipsecrequest; 44 struct secasvar; 45 struct sockaddr; 46 struct socket; 47 struct sadb_msg; 48 struct sadb_x_policy; 49 struct secasindex; 50 union sockaddr_union; 51 52 int key_havesp(u_int dir); 53 struct secpolicy *key_allocsp(struct secpolicyindex *, u_int, 54 const char*, int); 55 struct secpolicy *key_allocsp2(u_int32_t spi, union sockaddr_union *dst, 56 u_int8_t proto, u_int dir, const char*, int); 57 struct secpolicy *key_newsp(const char*, int); 58 struct secpolicy *key_gettunnel(const struct sockaddr *, 59 const struct sockaddr *, const struct sockaddr *, 60 const struct sockaddr *, const char*, int); 61 /* NB: prepend with _ for KAME IPv6 compatbility */ 62 void _key_freesp(struct secpolicy **, const char*, int); 63 64 /* 65 * Access to the SADB are interlocked with splsoftnet. In particular, 66 * holders of SA's use this to block accesses by protocol processing 67 * that can happen either by network swi's or by continuations that 68 * occur on crypto callbacks. Much of this could go away if 69 * key_checkrequest were redone. 70 */ 71 #define KEY_ALLOCSP(spidx, dir) \ 72 key_allocsp(spidx, dir, __FILE__, __LINE__) 73 #define KEY_ALLOCSP2(spi, dst, proto, dir) \ 74 key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__) 75 #define KEY_NEWSP() \ 76 key_newsp(__FILE__, __LINE__) 77 #define KEY_GETTUNNEL(osrc, odst, isrc, idst) \ 78 key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__) 79 #define KEY_FREESP(spp) \ 80 _key_freesp(spp, __FILE__, __LINE__) 81 82 struct secasvar *key_allocsa(const union sockaddr_union *, 83 u_int, u_int32_t, u_int16_t, u_int16_t, const char*, int); 84 void key_freesav(struct secasvar **, const char*, int); 85 86 #define KEY_ALLOCSA(dst, proto, spi, sport, dport) \ 87 key_allocsa(dst, proto, spi, sport, dport, __FILE__, __LINE__) 88 #define KEY_FREESAV(psav) \ 89 key_freesav(psav, __FILE__, __LINE__) 90 91 void key_freeso (struct socket *); 92 int key_checktunnelsanity (struct secasvar *, u_int, void *, void *); 93 int key_checkrequest (struct ipsecrequest *isr, const struct secasindex *); 94 95 struct secpolicy *key_msg2sp (struct sadb_x_policy *, size_t, int *); 96 struct mbuf *key_sp2msg (struct secpolicy *); 97 int key_ismyaddr (struct sockaddr *); 98 int key_cmpspidx_exactly (struct secpolicyindex *, struct secpolicyindex *); 99 int key_cmpspidx_withmask (struct secpolicyindex *, struct secpolicyindex *); 100 int key_spdacquire (struct secpolicy *); 101 void key_timehandler (void*); 102 u_long key_random (void); 103 void key_randomfill (void *, size_t); 104 void key_freereg (struct socket *); 105 int key_parse (struct mbuf *, struct socket *); 106 void key_init (void); 107 void key_sa_recordxfer (struct secasvar *, struct mbuf *); 108 void key_sa_routechange (struct sockaddr *); 109 void key_sa_stir_iv (struct secasvar *); 110 111 #ifdef IPSEC_NAT_T 112 u_int16_t key_portfromsaddr (const union sockaddr_union *); 113 #endif 114 115 116 117 #ifdef MALLOC_DECLARE 118 MALLOC_DECLARE(M_SECA); 119 #endif /* MALLOC_DECLARE */ 120 121 #endif /* defined(_KERNEL) */ 122 #endif /* !_NETIPSEC_KEY_H_ */ 123