ipsec-tools/racoon/algorithm.h

   1 /* $Id: algorithm.h,v 1.8 2004/11/18 15:14:44 ludvigm Exp $ */
   2
   3 /*
   4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #ifndef _ALGORITHM_H
  33 #define _ALGORITHM_H
  34
  35 #include <gnuc.h>
  36
  37 /* algorithm class */
  38 enum {
  39         algclass_ipsec_enc,
  40         algclass_ipsec_auth,
  41         algclass_ipsec_comp,
  42         algclass_isakmp_enc,
  43         algclass_isakmp_hash,
  44         algclass_isakmp_dh,
  45         algclass_isakmp_ameth,  /* authentication method. */
  46 #define MAXALGCLASS     7
  47 };
  48
  49 #define ALG_DEFAULT_KEYLEN      64
  50
  51 #define ALGTYPE_NOTHING         0
  52
  53 /* algorithm type */
  54 enum algtype {
  55         algtype_nothing = 0,
  56
  57         /* enc */
  58         algtype_des_iv64,
  59         algtype_des,
  60         algtype_3des,
  61         algtype_rc5,
  62         algtype_idea,
  63         algtype_cast128,
  64         algtype_blowfish,
  65         algtype_3idea,
  66         algtype_des_iv32,
  67         algtype_rc4,
  68         algtype_null_enc,
  69         algtype_aes,
  70         algtype_twofish,
  71
  72         /* ipsec auth */
  73         algtype_hmac_md5,
  74         algtype_hmac_sha1,
  75         algtype_des_mac,
  76         algtype_kpdk,
  77         algtype_non_auth,
  78         algtype_hmac_sha2_256,
  79         algtype_hmac_sha2_384,
  80         algtype_hmac_sha2_512,
  81
  82         /* ipcomp */
  83         algtype_oui,
  84         algtype_deflate,
  85         algtype_lzs,
  86
  87         /* hash */
  88         algtype_md5,
  89         algtype_sha1,
  90         algtype_tiger,
  91         algtype_sha2_256,
  92         algtype_sha2_384,
  93         algtype_sha2_512,
  94
  95         /* dh_group */
  96         algtype_modp768,
  97         algtype_modp1024,
  98         algtype_ec2n155,
  99         algtype_ec2n185,
 100         algtype_modp1536,
 101         algtype_modp2048,
 102         algtype_modp3072,
 103         algtype_modp4096,
 104         algtype_modp6144,
 105         algtype_modp8192,
 106
 107         /* authentication method. */
 108         algtype_psk,
 109         algtype_dsssig,
 110         algtype_rsasig,
 111         algtype_rsaenc,
 112         algtype_rsarev,
 113         algtype_gssapikrb,
 114 #ifdef ENABLE_HYBRID
 115         algtype_hybrid_rsa_s,
 116         algtype_hybrid_dss_s,
 117         algtype_hybrid_rsa_c,
 118         algtype_hybrid_dss_c,
 119 #endif
 120 };
 121
 122 struct hmac_algorithm {
 123         char *name;
 124         int type;
 125         int doi;
 126         caddr_t (*init) __P((vchar_t *));
 127         void (*update) __P((caddr_t, vchar_t *));
 128         vchar_t *(*final) __P((caddr_t));
 129         int (*hashlen) __P((void));
 130         vchar_t *(*one) __P((vchar_t *, vchar_t *));
 131 };
 132
 133 struct hash_algorithm {
 134         char *name;
 135         int type;
 136         int doi;
 137         caddr_t (*init) __P((void));
 138         void (*update) __P((caddr_t, vchar_t *));
 139         vchar_t *(*final) __P((caddr_t));
 140         int (*hashlen) __P((void));
 141         vchar_t *(*one) __P((vchar_t *));
 142 };
 143
 144 struct enc_algorithm {
 145         char *name;
 146         int type;
 147         int doi;
 148         int blocklen;
 149         vchar_t *(*encrypt) __P((vchar_t *, vchar_t *, vchar_t *));
 150         vchar_t *(*decrypt) __P((vchar_t *, vchar_t *, vchar_t *));
 151         int (*weakkey) __P((vchar_t *));
 152         int (*keylen) __P((int));
 153 };
 154
 155 /* dh group */
 156 struct dh_algorithm {
 157         char *name;
 158         int type;
 159         int doi;
 160         struct dhgroup *dhgroup;
 161 };
 162
 163 /* ipcomp, auth meth, dh group */
 164 struct misc_algorithm {
 165         char *name;
 166         int type;
 167         int doi;
 168 };
 169
 170 extern int alg_oakley_hashdef_ok __P((int));
 171 extern int alg_oakley_hashdef_doi __P((int));
 172 extern int alg_oakley_hashdef_hashlen __P((int));
 173 extern vchar_t *alg_oakley_hashdef_one __P((int, vchar_t *));
 174
 175 extern int alg_oakley_hmacdef_doi __P((int));
 176 extern vchar_t *alg_oakley_hmacdef_one __P((int, vchar_t *, vchar_t *));
 177
 178 extern int alg_oakley_encdef_ok __P((int));
 179 extern int alg_oakley_encdef_doi __P((int));
 180 extern int alg_oakley_encdef_keylen __P((int, int));
 181 extern int alg_oakley_encdef_blocklen __P((int));
 182 extern vchar_t *alg_oakley_encdef_decrypt __P((int, vchar_t *, vchar_t *, vchar_t *));
 183 extern vchar_t *alg_oakley_encdef_encrypt __P((int, vchar_t *, vchar_t *, vchar_t *));
 184
 185 extern int alg_ipsec_encdef_doi __P((int));
 186 extern int alg_ipsec_encdef_keylen __P((int, int));
 187
 188 extern int alg_ipsec_hmacdef_doi __P((int));
 189 extern int alg_ipsec_hmacdef_hashlen __P((int));
 190
 191 extern int alg_ipsec_compdef_doi __P((int));
 192
 193 extern int alg_oakley_dhdef_doi __P((int));
 194 extern int alg_oakley_dhdef_ok __P((int));
 195 extern struct dhgroup *alg_oakley_dhdef_group __P((int));
 196
 197 extern int alg_oakley_authdef_doi __P((int));
 198
 199 extern int default_keylen __P((int, int));
 200 extern int check_keylen __P((int, int, int));
 201 extern int algtype2doi __P((int, int));
 202 extern int algclass2doi __P((int));
 203
 204 extern const char *alg_oakley_encdef_name __P((int));
 205 extern const char *alg_oakley_hashdef_name __P((int));
 206 extern const char *alg_oakley_dhdef_name __P((int));
 207 extern const char *alg_oakley_authdef_name __P((int));
 208
 209 #endif /* _ALGORITHM_H */