| 1 | /* $NetBSD: key.h,v 1.14 2015/03/30 03:51:50 ozaki-r 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 | struct secpolicy; |
| 40 | struct secpolicyindex; |
| 41 | struct ipsecrequest; |
| 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 | |
| 50 | int key_havesp(u_int dir); |
| 51 | struct secpolicy *key_allocsp(const struct secpolicyindex *, u_int, |
| 52 | const char*, int); |
| 53 | struct secpolicy *key_allocsp2(u_int32_t spi, const union sockaddr_union *dst, |
| 54 | u_int8_t proto, u_int dir, const char*, int); |
| 55 | struct secpolicy *key_newsp(const char*, int); |
| 56 | 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 */ |
| 60 | void _key_freesp(struct secpolicy **, const char*, int); |
| 61 | |
| 62 | /* |
| 63 | * Access to the SADB are interlocked with splsoftnet. In particular, |
| 64 | * holders of SA's use this to block accesses by protocol processing |
| 65 | * that can happen either by network swi's or by continuations that |
| 66 | * occur on crypto callbacks. Much of this could go away if |
| 67 | * key_checkrequest were redone. |
| 68 | */ |
| 69 | #define KEY_ALLOCSP(spidx, dir) \ |
| 70 | key_allocsp(spidx, dir, __FILE__, __LINE__) |
| 71 | #define KEY_ALLOCSP2(spi, dst, proto, dir) \ |
| 72 | key_allocsp2(spi, dst, proto, dir, __FILE__, __LINE__) |
| 73 | #define KEY_NEWSP() \ |
| 74 | key_newsp(__FILE__, __LINE__) |
| 75 | #define KEY_GETTUNNEL(osrc, odst, isrc, idst) \ |
| 76 | key_gettunnel(osrc, odst, isrc, idst, __FILE__, __LINE__) |
| 77 | #define KEY_FREESP(spp) \ |
| 78 | _key_freesp(spp, __FILE__, __LINE__) |
| 79 | |
| 80 | struct secasvar *key_allocsa(const union sockaddr_union *, |
| 81 | u_int, u_int32_t, u_int16_t, u_int16_t, const char*, int); |
| 82 | void key_freesav(struct secasvar **, const char*, int); |
| 83 | |
| 84 | #define KEY_ALLOCSA(dst, proto, spi, sport, dport) \ |
| 85 | key_allocsa(dst, proto, spi, sport, dport, __FILE__, __LINE__) |
| 86 | #define KEY_FREESAV(psav) \ |
| 87 | key_freesav(psav, __FILE__, __LINE__) |
| 88 | |
| 89 | void key_freeso (struct socket *); |
| 90 | int key_checktunnelsanity (struct secasvar *, u_int, void *, void *); |
| 91 | int key_checkrequest (struct ipsecrequest *isr, const struct secasindex *); |
| 92 | |
| 93 | struct secpolicy *key_msg2sp (const struct sadb_x_policy *, size_t, int *); |
| 94 | struct mbuf *key_sp2msg (const struct secpolicy *); |
| 95 | int key_ismyaddr (const struct sockaddr *); |
| 96 | int key_cmpspidx_exactly (const struct secpolicyindex *, const struct secpolicyindex *); |
| 97 | int key_cmpspidx_withmask (const struct secpolicyindex *, const struct secpolicyindex *); |
| 98 | int key_spdacquire (const struct secpolicy *); |
| 99 | void key_timehandler (void*); |
| 100 | u_long key_random (void); |
| 101 | void key_randomfill (void *, size_t); |
| 102 | void key_freereg (struct socket *); |
| 103 | int key_parse (struct mbuf *, struct socket *); |
| 104 | void key_init (void); |
| 105 | void key_sa_recordxfer (struct secasvar *, struct mbuf *); |
| 106 | void key_sa_routechange (struct sockaddr *); |
| 107 | void key_update_used(void); |
| 108 | int key_get_used(void); |
| 109 | |
| 110 | u_int16_t key_portfromsaddr (const union sockaddr_union *); |
| 111 | |
| 112 | |
| 113 | |
| 114 | #ifdef MALLOC_DECLARE |
| 115 | MALLOC_DECLARE(M_SECA); |
| 116 | #endif /* MALLOC_DECLARE */ |
| 117 | |
| 118 | #endif /* defined(_KERNEL) */ |
| 119 | #endif /* !_NETIPSEC_KEY_H_ */ |
| 120 | |