114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/* $KAME: algorithm.h,v 1.12 2001/03/21 22:38:29 sakane 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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/* algorithm strength */
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enum {
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algstrength_ehigh,
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algstrength_high,
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algstrength_normal,
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#define MAXALGSTRENGTH 3
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};
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struct algorithm_strength {
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/*
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* algorithm type N is mapped to 1 << (N - 1).
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* N of 0 is not encoded, that is, it means nothing.
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*/
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u_int32_t algtype[MAXALGSTRENGTH];
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};
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/* algorithm class */
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enum {
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algclass_ipsec_enc,
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algclass_ipsec_auth,
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algclass_ipsec_comp,
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algclass_isakmp_enc,
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algclass_isakmp_hash,
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algclass_isakmp_dh,
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algclass_isakmp_ameth, /* authentication method. */
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#define MAXALGCLASS 7
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};
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#define ALG_DEFAULT_KEYLEN 64
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#define ALGTYPE_NOTHING 0
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/* algorithm type */
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enum {
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/* enc */
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algtype_nothing = 0,
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algtype_des_iv64, algtype_des, algtype_3des,
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algtype_rc5, algtype_idea, algtype_cast128, algtype_blowfish,
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algtype_3idea, algtype_des_iv32, algtype_rc4, algtype_null_enc,
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algtype_rijndael, algtype_twofish,
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};
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enum {
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/* ipsec auth */
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/* 0 is defined as algtype_nothing above. */
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algtype_hmac_md5 = 1, algtype_hmac_sha1, algtype_des_mac, algtype_kpdk,
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algtype_non_auth,
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};
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enum {
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/* ipcomp */
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/* 0 is defined as algtype_nothing above. */
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algtype_oui = 1, algtype_deflate, algtype_lzs,
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};
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enum {
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/* hash */
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/* 0 is defined as algtype_nothing above. */
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algtype_md5 = 1, algtype_sha1, algtype_tiger,
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};
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enum {
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/* dh_group */
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/* 0 is defined as algtype_nothing above. */
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algtype_modp768 = 1, algtype_modp1024,
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algtype_ec2n155, algtype_ec2n185,
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algtype_modp1536,
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};
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enum {
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/* authentication method. */
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/* 0 is defined as algtype_nothing above. */
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algtype_psk = 1, algtype_dsssig, algtype_rsasig,
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algtype_rsaenc, algtype_rsarev, algtype_gssapikrb
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};
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extern int default_keylen __P((int, int));
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extern int check_keylen __P((int, int, int));
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extern int algtype2doi __P((int, int));
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extern int algclass2doi __P((int));
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extern struct algorithm_strength **initalgstrength __P((void));
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extern void flushalgstrength __P((struct algorithm_strength **));
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