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      1 /*	$NetBSD: dst_parse.h,v 1.1 2024/02/18 20:57:31 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
      5  *
      6  * SPDX-License-Identifier: MPL-2.0 AND ISC
      7  *
      8  * This Source Code Form is subject to the terms of the Mozilla Public
      9  * License, v. 2.0. If a copy of the MPL was not distributed with this
     10  * file, you can obtain one at https://mozilla.org/MPL/2.0/.
     11  *
     12  * See the COPYRIGHT file distributed with this work for additional
     13  * information regarding copyright ownership.
     14  */
     15 
     16 /*
     17  * Copyright (C) Network Associates, Inc.
     18  *
     19  * Permission to use, copy, modify, and/or distribute this software for any
     20  * purpose with or without fee is hereby granted, provided that the above
     21  * copyright notice and this permission notice appear in all copies.
     22  *
     23  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NETWORK ASSOCIATES DISCLAIMS
     24  * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
     25  * WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE
     26  * FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     27  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     28  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
     29  * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     30  */
     31 
     32 /*! \file */
     33 #ifndef DST_DST_PARSE_H
     34 #define DST_DST_PARSE_H 1
     35 
     36 #include <isc/lang.h>
     37 
     38 #include <dst/dst.h>
     39 
     40 #define MAXFIELDSIZE 512
     41 
     42 /*
     43  * Maximum number of fields in a private file is 18 (12 algorithm-
     44  * specific fields for RSA, plus 6 generic fields).
     45  */
     46 #define MAXFIELDS 12 + 6
     47 
     48 #define TAG_SHIFT     4
     49 #define TAG_ALG(tag)  ((unsigned int)(tag) >> TAG_SHIFT)
     50 #define TAG(alg, off) (((alg) << TAG_SHIFT) + (off))
     51 
     52 /* These are used by RSA-SHA1, RSASHA256 and RSASHA512 */
     53 #define RSA_NTAGS		11
     54 #define TAG_RSA_MODULUS		((DST_ALG_RSA << TAG_SHIFT) + 0)
     55 #define TAG_RSA_PUBLICEXPONENT	((DST_ALG_RSA << TAG_SHIFT) + 1)
     56 #define TAG_RSA_PRIVATEEXPONENT ((DST_ALG_RSA << TAG_SHIFT) + 2)
     57 #define TAG_RSA_PRIME1		((DST_ALG_RSA << TAG_SHIFT) + 3)
     58 #define TAG_RSA_PRIME2		((DST_ALG_RSA << TAG_SHIFT) + 4)
     59 #define TAG_RSA_EXPONENT1	((DST_ALG_RSA << TAG_SHIFT) + 5)
     60 #define TAG_RSA_EXPONENT2	((DST_ALG_RSA << TAG_SHIFT) + 6)
     61 #define TAG_RSA_COEFFICIENT	((DST_ALG_RSA << TAG_SHIFT) + 7)
     62 #define TAG_RSA_ENGINE		((DST_ALG_RSA << TAG_SHIFT) + 8)
     63 #define TAG_RSA_LABEL		((DST_ALG_RSA << TAG_SHIFT) + 9)
     64 
     65 #define DH_NTAGS	 4
     66 #define TAG_DH_PRIME	 ((DST_ALG_DH << TAG_SHIFT) + 0)
     67 #define TAG_DH_GENERATOR ((DST_ALG_DH << TAG_SHIFT) + 1)
     68 #define TAG_DH_PRIVATE	 ((DST_ALG_DH << TAG_SHIFT) + 2)
     69 #define TAG_DH_PUBLIC	 ((DST_ALG_DH << TAG_SHIFT) + 3)
     70 
     71 #define ECDSA_NTAGS	     4
     72 #define TAG_ECDSA_PRIVATEKEY ((DST_ALG_ECDSA256 << TAG_SHIFT) + 0)
     73 #define TAG_ECDSA_ENGINE     ((DST_ALG_ECDSA256 << TAG_SHIFT) + 1)
     74 #define TAG_ECDSA_LABEL	     ((DST_ALG_ECDSA256 << TAG_SHIFT) + 2)
     75 
     76 #define EDDSA_NTAGS	     4
     77 #define TAG_EDDSA_PRIVATEKEY ((DST_ALG_ED25519 << TAG_SHIFT) + 0)
     78 #define TAG_EDDSA_ENGINE     ((DST_ALG_ED25519 << TAG_SHIFT) + 1)
     79 #define TAG_EDDSA_LABEL	     ((DST_ALG_ED25519 << TAG_SHIFT) + 2)
     80 
     81 #define OLD_HMACMD5_NTAGS 1
     82 #define HMACMD5_NTAGS	  2
     83 #define TAG_HMACMD5_KEY	  ((DST_ALG_HMACMD5 << TAG_SHIFT) + 0)
     84 #define TAG_HMACMD5_BITS  ((DST_ALG_HMACMD5 << TAG_SHIFT) + 1)
     85 
     86 #define HMACSHA1_NTAGS	  2
     87 #define TAG_HMACSHA1_KEY  ((DST_ALG_HMACSHA1 << TAG_SHIFT) + 0)
     88 #define TAG_HMACSHA1_BITS ((DST_ALG_HMACSHA1 << TAG_SHIFT) + 1)
     89 
     90 #define HMACSHA224_NTAGS    2
     91 #define TAG_HMACSHA224_KEY  ((DST_ALG_HMACSHA224 << TAG_SHIFT) + 0)
     92 #define TAG_HMACSHA224_BITS ((DST_ALG_HMACSHA224 << TAG_SHIFT) + 1)
     93 
     94 #define HMACSHA256_NTAGS    2
     95 #define TAG_HMACSHA256_KEY  ((DST_ALG_HMACSHA256 << TAG_SHIFT) + 0)
     96 #define TAG_HMACSHA256_BITS ((DST_ALG_HMACSHA256 << TAG_SHIFT) + 1)
     97 
     98 #define HMACSHA384_NTAGS    2
     99 #define TAG_HMACSHA384_KEY  ((DST_ALG_HMACSHA384 << TAG_SHIFT) + 0)
    100 #define TAG_HMACSHA384_BITS ((DST_ALG_HMACSHA384 << TAG_SHIFT) + 1)
    101 
    102 #define HMACSHA512_NTAGS    2
    103 #define TAG_HMACSHA512_KEY  ((DST_ALG_HMACSHA512 << TAG_SHIFT) + 0)
    104 #define TAG_HMACSHA512_BITS ((DST_ALG_HMACSHA512 << TAG_SHIFT) + 1)
    105 
    106 struct dst_private_element {
    107 	unsigned short tag;
    108 	unsigned short length;
    109 	unsigned char *data;
    110 };
    111 
    112 typedef struct dst_private_element dst_private_element_t;
    113 
    114 struct dst_private {
    115 	unsigned short nelements;
    116 	dst_private_element_t elements[MAXFIELDS];
    117 };
    118 
    119 typedef struct dst_private dst_private_t;
    120 
    121 ISC_LANG_BEGINDECLS
    122 
    123 void
    124 dst__privstruct_free(dst_private_t *priv, isc_mem_t *mctx);
    125 
    126 isc_result_t
    127 dst__privstruct_parse(dst_key_t *key, unsigned int alg, isc_lex_t *lex,
    128 		      isc_mem_t *mctx, dst_private_t *priv);
    129 
    130 isc_result_t
    131 dst__privstruct_writefile(const dst_key_t *key, const dst_private_t *priv,
    132 			  const char *directory);
    133 
    134 ISC_LANG_ENDDECLS
    135 
    136 #endif /* DST_DST_PARSE_H */
    137