1/* $NetBSD: libpfkey.h,v 1.18 2010/12/03 14:32:52 tteras Exp $ */ 2 3/* Id: libpfkey.h,v 1.13 2005/12/04 20:26:43 manubsd 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 _LIBPFKEY_H 35#define _LIBPFKEY_H 36 37#ifndef KAME_LIBPFKEY_H 38#define KAME_LIBPFKEY_H 39 40#ifdef __cplusplus 41extern "C" { 42#endif 43 44#define PRIORITY_LOW 0xC0000000 45#define PRIORITY_DEFAULT 0x80000000 46#define PRIORITY_HIGH 0x40000000 47 48#define PRIORITY_OFFSET_POSITIVE_MAX 0x3fffffff 49#define PRIORITY_OFFSET_NEGATIVE_MAX 0x40000000 50 51struct sadb_msg; 52extern void pfkey_sadump __P((struct sadb_msg *)); 53extern void pfkey_sadump_withports __P((struct sadb_msg *)); 54extern void pfkey_spdump __P((struct sadb_msg *)); 55extern void pfkey_spdump_withports __P((struct sadb_msg *)); 56 57struct sockaddr; 58struct sadb_alg; 59 60/* Accomodate different prototypes in <netinet6/ipsec.h> */ 61#include <sys/types.h> 62#include PATH_IPSEC_H 63 64#ifndef HAVE_IPSEC_POLICY_T 65typedef caddr_t ipsec_policy_t; 66#define __ipsec_const 67#else 68#define __ipsec_const const 69#endif 70 71struct pfkey_send_sa_args { 72 int so; /* socket */ 73 u_int type; 74 u_int satype; 75 u_int mode; 76 struct sockaddr *src; /* IP src address for SA */ 77 struct sockaddr *dst; /* IP dst address for SA */ 78 u_int32_t spi; /* SA's spi */ 79 u_int32_t reqid; 80 u_int wsize; 81 caddr_t keymat; 82 u_int e_type, e_keylen; /* Encryption alg and keylen */ 83 u_int a_type, a_keylen; /* Authentication alg and key */ 84 u_int flags; 85 u_int32_t l_alloc; 86 u_int32_t l_bytes; 87 u_int32_t l_addtime; 88 u_int32_t l_usetime; 89 u_int32_t seq; 90 u_int8_t l_natt_type; 91 u_int16_t l_natt_sport, l_natt_dport; 92 struct sockaddr *l_natt_oa; 93 u_int16_t l_natt_frag; 94 u_int8_t ctxdoi, ctxalg; /* Security context DOI and algorithm */ 95 caddr_t ctxstr; /* Security context string */ 96 u_int16_t ctxstrlen; /* length of security context string */ 97}; 98 99/* The options built into libipsec */ 100extern int libipsec_opt; 101#define LIBIPSEC_OPT_NATT 0x01 102#define LIBIPSEC_OPT_FRAG 0x02 103#define LIBIPSEC_OPT_SEC_CTX 0x04 104 105/* IPsec Library Routines */ 106 107int ipsec_check_keylen __P((u_int, u_int, u_int)); 108int ipsec_check_keylen2 __P((u_int, u_int, u_int)); 109int ipsec_get_keylen __P((u_int, u_int, struct sadb_alg *)); 110char *ipsec_dump_policy_withports __P((void *, const char *)); 111void ipsec_hexdump __P((const void *, int)); 112const char *ipsec_strerror __P((void)); 113void kdebug_sadb __P((struct sadb_msg *)); 114ipsec_policy_t ipsec_set_policy __P((__ipsec_const char *, int)); 115int ipsec_get_policylen __P((ipsec_policy_t)); 116char *ipsec_dump_policy __P((ipsec_policy_t, __ipsec_const char *)); 117 118/* PFKey Routines */ 119 120u_int pfkey_set_softrate __P((u_int, u_int)); 121u_int pfkey_get_softrate __P((u_int)); 122int pfkey_send_getspi __P((int, u_int, u_int, struct sockaddr *, 123 struct sockaddr *, u_int32_t, u_int32_t, u_int32_t, u_int32_t)); 124int pfkey_send_getspi_nat __P((int, u_int, u_int, 125 struct sockaddr *, struct sockaddr *, u_int8_t, u_int16_t, u_int16_t, 126 u_int32_t, u_int32_t, u_int32_t, u_int32_t)); 127 128int pfkey_send_update2 __P((struct pfkey_send_sa_args *)); 129int pfkey_send_add2 __P((struct pfkey_send_sa_args *)); 130int pfkey_send_delete __P((int, u_int, u_int, 131 struct sockaddr *, struct sockaddr *, u_int32_t)); 132int pfkey_send_delete_all __P((int, u_int, u_int, 133 struct sockaddr *, struct sockaddr *)); 134int pfkey_send_get __P((int, u_int, u_int, 135 struct sockaddr *, struct sockaddr *, u_int32_t)); 136int pfkey_send_register __P((int, u_int)); 137int pfkey_recv_register __P((int)); 138int pfkey_set_supported __P((struct sadb_msg *, int)); 139int pfkey_send_flush __P((int, u_int)); 140int pfkey_send_dump __P((int, u_int)); 141int pfkey_send_promisc_toggle __P((int, int)); 142int pfkey_send_spdadd __P((int, struct sockaddr *, u_int, 143 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t)); 144int pfkey_send_spdadd2 __P((int, struct sockaddr *, u_int, 145 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t, 146 caddr_t, int, u_int32_t)); 147int pfkey_send_spdupdate __P((int, struct sockaddr *, u_int, 148 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t)); 149int pfkey_send_spdupdate2 __P((int, struct sockaddr *, u_int, 150 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t, 151 caddr_t, int, u_int32_t)); 152int pfkey_send_spddelete __P((int, struct sockaddr *, u_int, 153 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t)); 154int pfkey_send_spddelete2 __P((int, u_int32_t)); 155int pfkey_send_spdget __P((int, u_int32_t)); 156int pfkey_send_spdsetidx __P((int, struct sockaddr *, u_int, 157 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t)); 158int pfkey_send_spdflush __P((int)); 159int pfkey_send_spddump __P((int)); 160#ifdef SADB_X_MIGRATE 161int pfkey_send_migrate __P((int, struct sockaddr *, struct sockaddr *, 162 struct sockaddr *, u_int, struct sockaddr *, u_int, u_int, 163 caddr_t, int, u_int32_t)); 164#endif 165 166/* XXX should be somewhere else !!! 167 */ 168#ifdef SADB_X_EXT_NAT_T_TYPE 169#define PFKEY_ADDR_X_PORT(ext) (ntohs(((struct sadb_x_nat_t_port *)ext)->sadb_x_nat_t_port_port)) 170#define PFKEY_ADDR_X_NATTYPE(ext) ( ext != NULL && ((struct sadb_x_nat_t_type *)ext)->sadb_x_nat_t_type_type ) 171#endif 172 173 174int pfkey_open __P((void)); 175void pfkey_close __P((int)); 176int pfkey_set_buffer_size __P((int, int)); 177struct sadb_msg *pfkey_recv __P((int)); 178int pfkey_send __P((int, struct sadb_msg *, int)); 179int pfkey_align __P((struct sadb_msg *, caddr_t *)); 180int pfkey_check __P((caddr_t *)); 181 182/* 183 * Deprecated, available for backward compatibility with third party 184 * libipsec users. Please use pfkey_send_update2 and pfkey_send_add2 instead 185 */ 186int pfkey_send_update __P((int, u_int, u_int, struct sockaddr *, 187 struct sockaddr *, u_int32_t, u_int32_t, u_int, 188 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t, 189 u_int64_t, u_int64_t, u_int32_t)); 190int pfkey_send_update_nat __P((int, u_int, u_int, struct sockaddr *, 191 struct sockaddr *, u_int32_t, u_int32_t, u_int, 192 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t, 193 u_int64_t, u_int64_t, u_int32_t, 194 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t)); 195int pfkey_send_add __P((int, u_int, u_int, struct sockaddr *, 196 struct sockaddr *, u_int32_t, u_int32_t, u_int, 197 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t, 198 u_int64_t, u_int64_t, u_int32_t)); 199int pfkey_send_add_nat __P((int, u_int, u_int, struct sockaddr *, 200 struct sockaddr *, u_int32_t, u_int32_t, u_int, 201 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t, 202 u_int64_t, u_int64_t, u_int32_t, 203 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t)); 204 205#ifndef __SYSDEP_SA_LEN__ 206#define __SYSDEP_SA_LEN__ 207#include <netinet/in.h> 208 209#ifndef IPPROTO_IPV4 210#define IPPROTO_IPV4 IPPROTO_IPIP 211#endif 212 213#ifndef IPPROTO_IPCOMP 214#define IPPROTO_IPCOMP IPPROTO_COMP 215#endif 216 217#ifndef IPPROTO_MH 218#define IPPROTO_MH 135 219#endif 220 221static __inline u_int8_t 222sysdep_sa_len (const struct sockaddr *sa) 223{ 224#ifdef __linux__ 225 switch (sa->sa_family) 226 { 227 case AF_INET: 228 return sizeof (struct sockaddr_in); 229 case AF_INET6: 230 return sizeof (struct sockaddr_in6); 231 } 232 // log_print ("sysdep_sa_len: unknown sa family %d", sa->sa_family); 233 return sizeof (struct sockaddr_in); 234#else 235 return sa->sa_len; 236#endif 237} 238#endif 239 240#ifdef __cplusplus 241} 242#endif 243 244#endif /* KAME_LIBPFKEY_H */ 245 246#endif /* _LIBPFKEY_H */ 247