421 lines
13 KiB
C
421 lines
13 KiB
C
/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/* $Id: keyv2.h,v 1.1.6.1.6.4 1999/06/08 05:33:39 itojun Exp $ */
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/*
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* This file has been derived rfc 2367,
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* And added some flags of SADB_KEY_FLAGS_ as SADB_X_EXT_.
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* sakane@ydc.co.jp
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*/
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#ifndef _NET_PFKEYV2_H_
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#define _NET_PFKEYV2_H_
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/*
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This file defines structures and symbols for the PF_KEY Version 2
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key management interface. It was written at the U.S. Naval Research
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Laboratory. This file is in the public domain. The authors ask that
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you leave this credit intact on any copies of this file.
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*/
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#ifndef __PFKEY_V2_H
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#define __PFKEY_V2_H 1
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#define PF_KEY_V2 2
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#define PFKEYV2_REVISION 199806L
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#define SADB_RESERVED 0
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#define SADB_GETSPI 1
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#define SADB_UPDATE 2
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#define SADB_ADD 3
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#define SADB_DELETE 4
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#define SADB_GET 5
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#define SADB_ACQUIRE 6
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#define SADB_REGISTER 7
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#define SADB_EXPIRE 8
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#define SADB_FLUSH 9
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#define SADB_DUMP 10
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#define SADB_X_PROMISC 11
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#define SADB_X_PCHANGE 12
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#define SADB_X_SPDUPDATE 13 /* not yet */
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#define SADB_X_SPDADD 14
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#define SADB_X_SPDDELETE 15
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#define SADB_X_SPDGET 16 /* not yet */
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#define SADB_X_SPDACQUIRE 17 /* not yet */
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#define SADB_X_SPDDUMP 18
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#define SADB_X_SPDFLUSH 19
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#define SADB_MAX 19
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struct sadb_msg {
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u_int8_t sadb_msg_version;
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u_int8_t sadb_msg_type;
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u_int8_t sadb_msg_errno;
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u_int8_t sadb_msg_satype;
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u_int16_t sadb_msg_len;
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u_int8_t sadb_msg_mode; /* XXX */
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u_int8_t sadb_msg_reserved;
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u_int32_t sadb_msg_seq;
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u_int32_t sadb_msg_pid;
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};
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struct sadb_ext {
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u_int16_t sadb_ext_len;
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u_int16_t sadb_ext_type;
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};
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struct sadb_sa {
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u_int16_t sadb_sa_len;
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u_int16_t sadb_sa_exttype;
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u_int32_t sadb_sa_spi;
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u_int8_t sadb_sa_replay;
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u_int8_t sadb_sa_state;
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u_int8_t sadb_sa_auth;
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u_int8_t sadb_sa_encrypt;
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u_int32_t sadb_sa_flags;
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};
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struct sadb_lifetime {
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u_int16_t sadb_lifetime_len;
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u_int16_t sadb_lifetime_exttype;
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u_int32_t sadb_lifetime_allocations;
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u_int64_t sadb_lifetime_bytes;
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u_int64_t sadb_lifetime_addtime;
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u_int64_t sadb_lifetime_usetime;
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};
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struct sadb_address {
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u_int16_t sadb_address_len;
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u_int16_t sadb_address_exttype;
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u_int8_t sadb_address_proto;
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u_int8_t sadb_address_prefixlen;
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u_int16_t sadb_address_reserved;
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};
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struct sadb_key {
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u_int16_t sadb_key_len;
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u_int16_t sadb_key_exttype;
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u_int16_t sadb_key_bits;
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u_int16_t sadb_key_reserved;
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};
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struct sadb_ident {
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u_int16_t sadb_ident_len;
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u_int16_t sadb_ident_exttype;
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u_int16_t sadb_ident_type;
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u_int16_t sadb_ident_reserved;
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u_int64_t sadb_ident_id;
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};
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/* in order to use to divide sadb_ident.sadb_ident_id */
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union sadb_x_ident_id {
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u_int64_t sadb_x_ident_id;
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struct _sadb_x_ident_id_addr {
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u_int16_t prefix;
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u_int16_t ul_proto;
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u_int32_t reserved;
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} sadb_x_ident_id_addr;
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};
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struct sadb_sens {
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u_int16_t sadb_sens_len;
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u_int16_t sadb_sens_exttype;
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u_int32_t sadb_sens_dpd;
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u_int8_t sadb_sens_sens_level;
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u_int8_t sadb_sens_sens_len;
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u_int8_t sadb_sens_integ_level;
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u_int8_t sadb_sens_integ_len;
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u_int32_t sadb_sens_reserved;
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};
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struct sadb_prop {
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u_int16_t sadb_prop_len;
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u_int16_t sadb_prop_exttype;
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u_int8_t sadb_prop_replay;
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u_int8_t sadb_prop_reserved[3];
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};
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struct sadb_comb {
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u_int8_t sadb_comb_auth;
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u_int8_t sadb_comb_encrypt;
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u_int16_t sadb_comb_flags;
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u_int16_t sadb_comb_auth_minbits;
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u_int16_t sadb_comb_auth_maxbits;
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u_int16_t sadb_comb_encrypt_minbits;
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u_int16_t sadb_comb_encrypt_maxbits;
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u_int32_t sadb_comb_reserved;
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u_int32_t sadb_comb_soft_allocations;
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u_int32_t sadb_comb_hard_allocations;
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u_int64_t sadb_comb_soft_bytes;
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u_int64_t sadb_comb_hard_bytes;
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u_int64_t sadb_comb_soft_addtime;
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u_int64_t sadb_comb_hard_addtime;
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u_int64_t sadb_comb_soft_usetime;
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u_int64_t sadb_comb_hard_usetime;
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};
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struct sadb_supported {
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u_int16_t sadb_supported_len;
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u_int16_t sadb_supported_exttype;
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u_int32_t sadb_supported_reserved;
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};
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struct sadb_alg {
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u_int8_t sadb_alg_id;
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u_int8_t sadb_alg_ivlen;
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u_int16_t sadb_alg_minbits;
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u_int16_t sadb_alg_maxbits;
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u_int16_t sadb_alg_reserved;
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};
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struct sadb_spirange {
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u_int16_t sadb_spirange_len;
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u_int16_t sadb_spirange_exttype;
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u_int32_t sadb_spirange_min;
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u_int32_t sadb_spirange_max;
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u_int32_t sadb_spirange_reserved;
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};
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struct sadb_x_kmprivate {
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u_int16_t sadb_x_kmprivate_len;
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u_int16_t sadb_x_kmprivate_exttype;
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u_int32_t sadb_x_kmprivate_reserved;
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};
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/* XXX Policy Extension */
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/* sizeof(struct sadb_x_policy) == 8 */
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struct sadb_x_policy {
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u_int16_t sadb_x_policy_len;
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u_int16_t sadb_x_policy_exttype;
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/* See policy type of ipsec.h */
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u_int16_t sadb_x_policy_type;
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u_int8_t sadb_x_policy_dir; /* direction, see ipsec.h */
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u_int8_t sadb_x_policy_reserved;
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};
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/*
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* When policy_type == IPSEC, it is followed by some of
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* the ipsec policy request.
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* [total length of ipsec policy requests]
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* = (sadb_x_policy_len * sizeof(uint64_t) - sizeof(struct sadb_x_policy))
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*/
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/* XXX IPsec Policy Request Extension */
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/*
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* This structure is aligned 8 bytes.
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*/
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struct sadb_x_ipsecrequest {
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u_int16_t sadb_x_ipsecrequest_len;
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/* structure length aligned to 8 bytes.
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* This value is true length of bytes.
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* Not in units of 64 bits. */
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u_int16_t sadb_x_ipsecrequest_proto; /* See ipsec.h */
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/* See ipsec.h. Not SADB_SATYPE_XX */
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u_int16_t sadb_x_ipsecrequest_mode;
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u_int16_t sadb_x_ipsecrequest_level; /* See ipsec.h */
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/*
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* followed by source IP address of SA, and immediately followed by
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* destination IP address of SA. These encoded into two of sockaddr
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* structure without any padding. Must set each sa_len exactly.
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* Each of length of the sockaddr structure are not aligned to 64bits,
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* but sum of x_request and addresses is aligned to 64bits.
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*/
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};
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#define SADB_EXT_RESERVED 0
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#define SADB_EXT_SA 1
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#define SADB_EXT_LIFETIME_CURRENT 2
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#define SADB_EXT_LIFETIME_HARD 3
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#define SADB_EXT_LIFETIME_SOFT 4
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#define SADB_EXT_ADDRESS_SRC 5
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#define SADB_EXT_ADDRESS_DST 6
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#define SADB_EXT_ADDRESS_PROXY 7
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#define SADB_EXT_KEY_AUTH 8
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#define SADB_EXT_KEY_ENCRYPT 9
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#define SADB_EXT_IDENTITY_SRC 10
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#define SADB_EXT_IDENTITY_DST 11
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#define SADB_EXT_SENSITIVITY 12
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#define SADB_EXT_PROPOSAL 13
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#define SADB_EXT_SUPPORTED_AUTH 14
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#define SADB_EXT_SUPPORTED_ENCRYPT 15
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#define SADB_EXT_SPIRANGE 16
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#define SADB_X_EXT_KMPRIVATE 17
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#define SADB_X_EXT_POLICY 18
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#define SADB_EXT_MAX 18
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#define SADB_SATYPE_UNSPEC 0
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#define SADB_SATYPE_AH 2
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#define SADB_SATYPE_ESP 3
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#define SADB_SATYPE_RSVP 5
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#define SADB_SATYPE_OSPFV2 6
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#define SADB_SATYPE_RIPV2 7
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#define SADB_SATYPE_MIP 8
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#define SADB_X_SATYPE_IPCOMP 9
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#define SADB_SATYPE_MAX 9
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#define SADB_SASTATE_LARVAL 0
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#define SADB_SASTATE_MATURE 1
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#define SADB_SASTATE_DYING 2
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#define SADB_SASTATE_DEAD 3
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#define SADB_SASTATE_MAX 3
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#define SADB_SAFLAGS_PFS 1
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#define SADB_AALG_NONE 0
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#define SADB_AALG_MD5HMAC 1 /* 2 */
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#define SADB_AALG_SHA1HMAC 2 /* 3 */
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#define SADB_AALG_MD5 3 /* Keyed MD5 */
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#define SADB_AALG_SHA 4 /* Keyed SHA */
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#define SADB_AALG_NULL 5 /* null authentication */
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#define SADB_AALG_MAX 6
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#define SADB_EALG_NONE 0
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#define SADB_EALG_DESCBC 1 /* 2 */
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#define SADB_EALG_3DESCBC 2 /* 3 */
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#define SADB_EALG_NULL 3 /* 11 */
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#define SADB_EALG_BLOWFISHCBC 4
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#define SADB_EALG_CAST128CBC 5
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#define SADB_EALG_RC5CBC 6
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#define SADB_EALG_MAX 7
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/*nonstandard */
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#define SADB_X_CALG_NONE 0
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#define SADB_X_CALG_OUI 1
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#define SADB_X_CALG_DEFLATE 2
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#define SADB_X_CALG_LZS 3
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#define SADB_IDENTTYPE_RESERVED 0
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#define SADB_IDENTTYPE_PREFIX 1
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#define SADB_IDENTTYPE_FQDN 2
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#define SADB_IDENTTYPE_USERFQDN 3
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#define SADB_X_IDENTTYPE_ADDR 4
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#define SADB_IDENTTYPE_MAX 4
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/* `flags' in sadb_sa structure holds followings */
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#define SADB_X_EXT_NONE 0x0000 /* i.e. new format. */
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#define SADB_X_EXT_OLD 0x0001 /* old format. */
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#define SADB_X_EXT_IV4B 0x0010 /* IV length of 4 bytes in use */
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#define SADB_X_EXT_DERIV 0x0020 /* DES derived */
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#define SADB_X_EXT_CYCSEQ 0x0040 /* allowing to cyclic sequence. */
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/* three of followings are exclusive flags each them */
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#define SADB_X_EXT_PSEQ 0x0000 /* sequencial padding for ESP */
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#define SADB_X_EXT_PRAND 0x0100 /* random padding for ESP */
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#define SADB_X_EXT_PZERO 0x0200 /* zero padding for ESP */
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#define SADB_X_EXT_PMASK 0x0300 /* mask for padding flag */
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#define SADB_X_EXT_RAWCPI 0x0080 /* use well known CPI (IPComp) */
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#define SADB_KEY_FLAGS_MAX 0x0fff
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/* SPI size for PF_KEYv2 */
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#define PFKEY_SPI_SIZE sizeof(u_int32_t)
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/* Identifier for menber of lifetime structure */
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#define SADB_X_LIFETIME_ALLOCATIONS 0
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#define SADB_X_LIFETIME_BYTES 1
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#define SADB_X_LIFETIME_ADDTIME 2
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#define SADB_X_LIFETIME_USETIME 3
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/* The rate for SOFT lifetime against HARD one. */
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#define PFKEY_SOFT_LIFETIME_RATE 80
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/* Utilities */
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#define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1)))
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#define PFKEY_EXTLEN(msg) \
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PFKEY_UNUNIT64(((struct sadb_ext *)(msg))->sadb_ext_len)
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#define PFKEY_ADDR_PREFIX(ext) \
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(((struct sadb_address *)(ext))->sadb_address_prefixlen)
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#define PFKEY_ADDR_PROTO(ext) \
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(((struct sadb_address *)(ext))->sadb_address_proto)
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#define PFKEY_ADDR_SADDR(ext) \
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((struct sockaddr *)((caddr_t)(ext) + sizeof(struct sadb_address)))
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/* in 64bits */
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#define PFKEY_UNUNIT64(a) ((a) << 3)
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#define PFKEY_UNIT64(a) ((a) >> 3)
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#ifndef _KERNEL
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struct sockaddr;
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int ipsec_check_keylen __P((u_int supported, u_int alg_id, u_int keylen));
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int pfkey_align __P((struct sadb_msg *msg, caddr_t *mhp));
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int pfkey_check __P((caddr_t *mhp));
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void pfkey_close __P((int so));
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u_int pfkey_get_softrate __P((u_int type));
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u_int pfkey_set_softrate __P((u_int type, u_int rate));
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int pfkey_open __P((void));
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struct sadb_msg *pfkey_recv __P((int so));
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int pfkey_recv_register __P((int so));
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int pfkey_send_register __P((int so, u_int satype));
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void pfkey_sadump __P((struct sadb_msg *m));
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void pfkey_spdump __P((struct sadb_msg *m));
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int pfkey_send __P((int so, struct sadb_msg *msg, int len));
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int pfkey_send_add __P((int so, u_int satype, u_int mode,
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struct sockaddr *src, struct sockaddr *dst,
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u_int32_t spi, u_int wsize, caddr_t keymat,
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u_int e_type, u_int e_keylen, u_int a_type,
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u_int a_keylen, u_int flags, u_int32_t l_alloc,
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u_int64_t l_bytes, u_int64_t l_addtime,
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u_int64_t l_usetime, u_int32_t seq));
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int pfkey_send_delete __P((int so, u_int satype, u_int mode,
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struct sockaddr *src, struct sockaddr *dst,
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u_int32_t spi));
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int pfkey_send_dump __P((int so, u_int satype));
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int pfkey_send_flush __P((int so, u_int satype));
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int pfkey_send_get __P((int so, u_int satype, u_int mode,
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struct sockaddr *src, struct sockaddr *dst,
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u_int32_t spi));
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int pfkey_send_getspi __P((int so, u_int satype, u_int mode,
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struct sockaddr *src, struct sockaddr *dst,
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u_int32_t min, u_int32_t max, u_int32_t seq));
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int pfkey_send_promisc_toggle __P((int so, int flag));
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int pfkey_send_spdadd __P((int so, struct sockaddr *src, u_int prefs,
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struct sockaddr *dst, u_int prefd, u_int proto,
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caddr_t policy, int policylen, u_int32_t seq));
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int pfkey_send_spddelete __P((int so, struct sockaddr *src, u_int prefs,
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struct sockaddr *dst, u_int prefd,
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u_int proto, u_int32_t seq));
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int pfkey_send_spddump __P((int so));
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int pfkey_send_spdflush __P((int so));
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int pfkey_send_update __P((int so, u_int satype, u_int mode,
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struct sockaddr *src, struct sockaddr *dst,
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u_int32_t spi, u_int wsize, caddr_t keymat,
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u_int e_type, u_int e_keylen, u_int a_type,
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u_int a_keylen, u_int flags, u_int32_t l_alloc,
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u_int64_t l_bytes, u_int64_t l_addtime,
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u_int64_t l_usetime, u_int32_t seq));
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#endif /*!_KERNEL*/
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#endif /* !__PFKEY_V2_H */
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#endif /* !_NET_PFKEYV2_H_ */
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