550 lines
16 KiB
C
550 lines
16 KiB
C
/* $NetBSD: pfkeyv2.h,v 1.34 2022/10/11 09:51:47 knakahara Exp $ */
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/* $KAME: pfkeyv2.h,v 1.36 2003/07/25 09:33:37 itojun Exp $ */
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/*
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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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/*
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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
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#define SADB_X_SPDADD 14
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#define SADB_X_SPDDELETE 15 /* by policy index */
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#define SADB_X_SPDGET 16
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#define SADB_X_SPDACQUIRE 17
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#define SADB_X_SPDDUMP 18
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#define SADB_X_SPDFLUSH 19
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#define SADB_X_SPDSETIDX 20
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#define SADB_X_SPDEXPIRE 21 /* not yet */
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#define SADB_X_SPDDELETE2 22 /* by policy id */
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#define SADB_X_NAT_T_NEW_MAPPING 23
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#if 0
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#define SADB_X_MIGRATE 24 /* KAME */
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#endif
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#define SADB_MAX 23
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struct sadb_msg {
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uint8_t sadb_msg_version;
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uint8_t sadb_msg_type;
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uint8_t sadb_msg_errno;
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uint8_t sadb_msg_satype;
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uint16_t sadb_msg_len;
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uint16_t sadb_msg_reserved;
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uint32_t sadb_msg_seq;
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uint32_t sadb_msg_pid;
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};
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struct sadb_ext {
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uint16_t sadb_ext_len;
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uint16_t sadb_ext_type;
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};
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struct sadb_sa {
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uint16_t sadb_sa_len;
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uint16_t sadb_sa_exttype;
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uint32_t sadb_sa_spi;
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uint8_t sadb_sa_replay;
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uint8_t sadb_sa_state;
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uint8_t sadb_sa_auth;
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uint8_t sadb_sa_encrypt;
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uint32_t sadb_sa_flags;
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};
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struct sadb_lifetime {
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uint16_t sadb_lifetime_len;
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uint16_t sadb_lifetime_exttype;
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uint32_t sadb_lifetime_allocations;
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uint64_t sadb_lifetime_bytes;
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uint64_t sadb_lifetime_addtime;
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uint64_t sadb_lifetime_usetime;
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};
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struct sadb_address {
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uint16_t sadb_address_len;
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uint16_t sadb_address_exttype;
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uint8_t sadb_address_proto;
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uint8_t sadb_address_prefixlen;
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uint16_t sadb_address_reserved;
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};
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struct sadb_key {
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uint16_t sadb_key_len;
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uint16_t sadb_key_exttype;
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uint16_t sadb_key_bits;
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uint16_t sadb_key_reserved;
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};
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struct sadb_ident {
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uint16_t sadb_ident_len;
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uint16_t sadb_ident_exttype;
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uint16_t sadb_ident_type;
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uint16_t sadb_ident_reserved;
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uint64_t sadb_ident_id;
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};
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struct sadb_sens {
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uint16_t sadb_sens_len;
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uint16_t sadb_sens_exttype;
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uint32_t sadb_sens_dpd;
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uint8_t sadb_sens_sens_level;
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uint8_t sadb_sens_sens_len;
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uint8_t sadb_sens_integ_level;
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uint8_t sadb_sens_integ_len;
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uint32_t sadb_sens_reserved;
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};
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struct sadb_prop {
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uint16_t sadb_prop_len;
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uint16_t sadb_prop_exttype;
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uint8_t sadb_prop_replay;
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uint8_t sadb_prop_reserved[3];
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};
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struct sadb_comb {
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uint8_t sadb_comb_auth;
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uint8_t sadb_comb_encrypt;
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uint16_t sadb_comb_flags;
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uint16_t sadb_comb_auth_minbits;
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uint16_t sadb_comb_auth_maxbits;
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uint16_t sadb_comb_encrypt_minbits;
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uint16_t sadb_comb_encrypt_maxbits;
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uint32_t sadb_comb_reserved;
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uint32_t sadb_comb_soft_allocations;
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uint32_t sadb_comb_hard_allocations;
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uint64_t sadb_comb_soft_bytes;
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uint64_t sadb_comb_hard_bytes;
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uint64_t sadb_comb_soft_addtime;
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uint64_t sadb_comb_hard_addtime;
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uint64_t sadb_comb_soft_usetime;
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uint64_t sadb_comb_hard_usetime;
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};
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struct sadb_supported {
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uint16_t sadb_supported_len;
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uint16_t sadb_supported_exttype;
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uint32_t sadb_supported_reserved;
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};
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struct sadb_alg {
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uint8_t sadb_alg_id;
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uint8_t sadb_alg_ivlen;
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uint16_t sadb_alg_minbits;
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uint16_t sadb_alg_maxbits;
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uint16_t sadb_alg_reserved;
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};
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struct sadb_spirange {
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uint16_t sadb_spirange_len;
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uint16_t sadb_spirange_exttype;
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uint32_t sadb_spirange_min;
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uint32_t sadb_spirange_max;
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uint32_t sadb_spirange_reserved;
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};
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struct sadb_x_kmprivate {
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uint16_t sadb_x_kmprivate_len;
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uint16_t sadb_x_kmprivate_exttype;
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uint32_t sadb_x_kmprivate_reserved;
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};
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/*
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* XXX Additional SA Extension.
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* mode: tunnel or transport
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* reqid: to make SA unique nevertheless the address pair of SA are same.
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* Mainly it's for VPN.
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*/
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struct sadb_x_sa2 {
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uint16_t sadb_x_sa2_len;
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uint16_t sadb_x_sa2_exttype;
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uint8_t sadb_x_sa2_mode;
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uint8_t sadb_x_sa2_reserved1;
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uint16_t sadb_x_sa2_reserved2;
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uint32_t sadb_x_sa2_sequence;
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uint32_t sadb_x_sa2_reqid; /* topmost 16bits are always 0 */
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};
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/* XXX Policy Extension */
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/* sizeof(struct sadb_x_policy) == 16 */
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struct sadb_x_policy {
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uint16_t sadb_x_policy_len;
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uint16_t sadb_x_policy_exttype;
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uint16_t sadb_x_policy_type; /* See policy type of ipsec.h */
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uint8_t sadb_x_policy_dir; /* direction, see ipsec.h */
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uint8_t sadb_x_policy_flags;
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#define IPSEC_POLICY_FLAG_ORIGIN_KERNEL 0x80 /* policy is generated by kernel */
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uint32_t sadb_x_policy_id;
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uint32_t sadb_x_policy_reserved2;
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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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uint16_t sadb_x_ipsecrequest_len; /* structure length in 64 bits. */
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uint16_t sadb_x_ipsecrequest_proto; /* See ipsec.h */
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uint8_t sadb_x_ipsecrequest_mode; /* See IPSEC_MODE_XX in ipsec.h. */
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uint8_t sadb_x_ipsecrequest_level; /* See IPSEC_LEVEL_XX in ipsec.h */
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uint16_t sadb_x_ipsecrequest_reqid; /* 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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/* NAT traversal type, see draft-ietf-ipsec-udp-encaps-06 */
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/* sizeof(struct sadb_x_nat_t_type) == 8 */
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struct sadb_x_nat_t_type {
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uint16_t sadb_x_nat_t_type_len;
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uint16_t sadb_x_nat_t_type_exttype;
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uint8_t sadb_x_nat_t_type_type;
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uint8_t sadb_x_nat_t_type_reserved[3];
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};
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/* NAT traversal source or destination port */
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/* sizeof(struct sadb_x_nat_t_port) == 8 */
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struct sadb_x_nat_t_port {
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uint16_t sadb_x_nat_t_port_len;
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uint16_t sadb_x_nat_t_port_exttype;
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uint16_t sadb_x_nat_t_port_port;
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uint16_t sadb_x_nat_t_port_reserved;
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};
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/* ESP fragmentation size */
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/* sizeof(struct sadb_x_nat_t_frag) == 8 */
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struct sadb_x_nat_t_frag {
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uint16_t sadb_x_nat_t_frag_len;
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uint16_t sadb_x_nat_t_frag_exttype;
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uint16_t sadb_x_nat_t_frag_fraglen;
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uint16_t sadb_x_nat_t_frag_reserved;
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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_X_EXT_SA2 19
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#define SADB_X_EXT_NAT_T_TYPE 20
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#define SADB_X_EXT_NAT_T_SPORT 21
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#define SADB_X_EXT_NAT_T_DPORT 22
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#define SADB_X_EXT_NAT_T_OA 23 /* compat */
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#define SADB_X_EXT_NAT_T_OAI 23
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#define SADB_X_EXT_NAT_T_OAR 24
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#define SADB_X_EXT_NAT_T_FRAG 25
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#if 0
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#define SADB_X_EXT_TAG 25 /* KAME */
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#define SADB_X_EXT_SA3 26 /* KAME */
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#define SADB_X_EXT_PACKET 27 /* KAME */
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#endif
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#define SADB_EXT_MAX 25
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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_X_SATYPE_POLICY 10 obsolete, do not reuse */
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#define SADB_X_SATYPE_TCPSIGNATURE 11
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#define SADB_SATYPE_MAX 12
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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_SASTATE_USABLE_P(sav) \
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((sav)->state == SADB_SASTATE_MATURE || (sav)->state == SADB_SASTATE_DYING)
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#define SADB_SAFLAGS_PFS 1
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/*
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* Statistics variable definitions. For ESP/AH/IPCOMP we define
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* indirection arrays of 256 elements indexed by algorithm (which
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* is uint8_t. All unknown/unhandled entries are summed in the 0th
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* element. We provide three variables per protocol:
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* 1. *_STATS_INIT: a list of initializers
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* 2. *_STATS_NUM: number of algorithms/statistics including (0/unknown)
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* 3. *_STATS_STR: a list of strings to symbolically print the statistics
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*/
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/* RFC2367 numbers - meets RFC2407 */
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#define SADB_AALG_NONE 0
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#define SADB_AALG_MD5HMAC 2
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#define SADB_AALG_SHA1HMAC 3
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#define SADB_AALG_MAX 251
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/* private allocations - based on RFC2407/IANA assignment */
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#define SADB_X_AALG_SHA2_256 5
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#define SADB_X_AALG_SHA2_384 6
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#define SADB_X_AALG_SHA2_512 7
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#define SADB_X_AALG_RIPEMD160HMAC 8
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#define SADB_X_AALG_AES_XCBC_MAC 9 /* RFC3566 */
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#define SADB_X_AALG_AES128GMAC 11 /* RFC4543 + Errata1821 */
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#define SADB_X_AALG_AES192GMAC 12
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#define SADB_X_AALG_AES256GMAC 13
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/* private allocations should use 249-255 (RFC2407) */
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#define SADB_X_AALG_MD5 249 /* Keyed MD5 */
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#define SADB_X_AALG_SHA 250 /* Keyed SHA */
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#define SADB_X_AALG_NULL 251 /* null authentication */
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#define SADB_X_AALG_TCP_MD5 252 /* Keyed TCP-MD5 (RFC2385) */
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#define SADB_AALG_STATS_INIT \
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[SADB_AALG_NONE] = 1, \
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[SADB_AALG_MD5HMAC] = 2, \
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[SADB_AALG_SHA1HMAC] = 3, \
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[SADB_X_AALG_SHA2_256] = 4, \
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[SADB_X_AALG_SHA2_384] = 5, \
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[SADB_X_AALG_SHA2_512] = 6, \
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[SADB_X_AALG_RIPEMD160HMAC] = 7, \
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[SADB_X_AALG_AES_XCBC_MAC] = 8, \
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[SADB_X_AALG_AES128GMAC] = 9, \
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[SADB_X_AALG_AES192GMAC] = 10, \
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[SADB_X_AALG_AES256GMAC] = 11, \
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[SADB_X_AALG_MD5] = 12, \
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[SADB_X_AALG_SHA] = 13, \
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[SADB_X_AALG_NULL] = 14, \
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[SADB_X_AALG_TCP_MD5] = 15,
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#define SADB_AALG_STATS_NUM 16
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#define SADB_AALG_STATS_STR \
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"*unknown*", \
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"none", \
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"hmac-md5", \
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"hmac-sha1", \
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"hmac-sha2-256", \
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"hmac-sha2-384", \
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"hmac-sha2-512", \
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"hmac-ripe-md160", \
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"aes-xbc-mac", \
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"aes-128-mac", \
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"aes-192-mac", \
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"aes-256-mac", \
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"md5", \
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"sha", \
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"null", \
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"tcp-md5",
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/* RFC2367 numbers - meets RFC2407 */
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#define SADB_EALG_NONE 0
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#define SADB_EALG_DESCBC 2
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#define SADB_EALG_3DESCBC 3
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#define SADB_EALG_NULL 11
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#define SADB_EALG_MAX 250
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/* private allocations - based on RFC2407/IANA assignment */
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#define SADB_X_EALG_CAST128CBC 6
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#define SADB_X_EALG_BLOWFISHCBC 7
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#define SADB_X_EALG_RIJNDAELCBC 12
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#define SADB_X_EALG_AES 12
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#define SADB_X_EALG_AESCTR 13 /* RFC3686 */
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#define SADB_X_EALG_AESGCM8 18 /* RFC4106 */
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#define SADB_X_EALG_AESGCM12 19
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#define SADB_X_EALG_AESGCM16 20
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#define SADB_X_EALG_CAMELLIACBC 22 /* RFC4312 */
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#define SADB_X_EALG_AESGMAC 23 /* RFC4543 + Errata1821 */
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/* private allocations should use 249-255 (RFC2407) */
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#define SADB_X_EALG_SKIPJACK 250
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#define SADB_EALG_STATS_INIT \
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[SADB_EALG_NONE] = 1, \
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[SADB_EALG_DESCBC] = 2, \
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[SADB_EALG_3DESCBC] = 3, \
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[SADB_EALG_NULL] = 4, \
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[SADB_X_EALG_CAST128CBC] = 5, \
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[SADB_X_EALG_BLOWFISHCBC] = 6, \
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[SADB_X_EALG_RIJNDAELCBC] = 7, \
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[SADB_X_EALG_AESCTR] = 8, \
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[SADB_X_EALG_AESGCM8] = 9, \
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[SADB_X_EALG_AESGCM12] = 10, \
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[SADB_X_EALG_AESGCM16] = 11, \
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[SADB_X_EALG_CAMELLIACBC] = 12, \
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[SADB_X_EALG_AESGMAC] = 13, \
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[SADB_X_EALG_SKIPJACK] = 14,
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#define SADB_EALG_STATS_NUM 15
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#define SADB_EALG_STATS_STR \
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"*unknown*", \
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"none", \
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"des-cbc", \
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"3des-cbc", \
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"null", \
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"cast128-cbc", \
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"blowfish-cbc", \
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"aes-cbc", \
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"aes-ctr", \
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"aes-gcm-8", \
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"aes-gcm-12", \
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"aes-gcm-16", \
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"camelia-cbc", \
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"aes-gmac", \
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"skipjack",
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/* private allocations - based on RFC2407/IANA assignment */
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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_X_CALG_MAX 4
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#define SADB_CALG_STATS_INIT \
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[SADB_X_CALG_NONE] = 1, \
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[SADB_X_CALG_OUI] = 2, \
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[SADB_X_CALG_DEFLATE] = 3, \
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[SADB_X_CALG_LZS] = 4,
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#define SADB_CALG_STATS_NUM 5
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#define SADB_CALG_STATS_STR \
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"*unknown*", \
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"none", \
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"oui", \
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"deflate", \
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"lzs",
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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 /* sequential 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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#if 1
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#define SADB_X_EXT_RAWCPI 0x0080 /* use well known CPI (IPComp) */
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#endif
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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(uint32_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(((const struct sadb_ext *)(const void *)(msg))->sadb_ext_len)
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#define PFKEY_ADDR_PREFIX(ext) \
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(((const struct sadb_address *)(const void *)(ext))->sadb_address_prefixlen)
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#define PFKEY_ADDR_PROTO(ext) \
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(((const struct sadb_address *)(const void *)(ext))->sadb_address_proto)
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#define PFKEY_ADDR_SADDR(ext) \
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((struct sockaddr *)(void *)((char *)(void *)(ext) + \
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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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#endif /* __PFKEY_V2_H */
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#endif /* !_NET_PFKEYV2_H_ */
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