NetBSD/lib/libresolv/dst_internal.h

167 lines
4.9 KiB
C

/* $NetBSD: dst_internal.h,v 1.4 2022/04/19 20:32:17 rillig Exp $ */
#ifndef DST_INTERNAL_H
#define DST_INTERNAL_H
/*
* Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
*
* Permission to use, copy modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THE SOFTWARE.
*/
#include <limits.h>
#include <sys/param.h>
#if (!defined(BSD)) || (BSD < 199306)
# include <sys/bitypes.h>
#else
# include <sys/types.h>
#endif
#ifndef PATH_MAX
# ifdef POSIX_PATH_MAX
# define PATH_MAX POSIX_PATH_MAX
# else
# define PATH_MAX 255 /*%< this is the value of POSIX_PATH_MAX */
# endif
#endif
typedef struct dst_key {
char *dk_key_name; /*%< name of the key */
int dk_key_size; /*%< this is the size of the key in bits */
int dk_proto; /*%< what protocols this key can be used for */
int dk_alg; /*%< algorithm number from key record */
u_int32_t dk_flags; /*%< and the flags of the public key */
u_int16_t dk_id; /*%< identifier of the key */
void *dk_KEY_struct; /*%< pointer to key in crypto pkg fmt */
struct dst_func *dk_func; /*%< point to cryptto pgk specific function table */
} DST_KEY;
#define HAS_DST_KEY
#include <isc/dst.h>
/*
* define what crypto systems are supported for RSA,
* BSAFE is preferred over RSAREF; only one can be set at any time
*/
#if defined(BSAFE) && defined(RSAREF)
# error "Cannot have both BSAFE and RSAREF defined"
#endif
/* Declare dst_lib specific constants */
#define KEY_FILE_FORMAT "1.2"
/* suffixes for key file names */
#define PRIVATE_KEY "private"
#define PUBLIC_KEY "key"
/* error handling */
#ifdef DEBUG
#define EREPORT(str) printf str
#else
#define EREPORT(str) do {} while (0)
#endif
/* use our own special macro to FRRE memory */
#ifndef SAFE_FREE2
#define SAFE_FREE2(a, s) do { \
if ((a) != NULL) { \
memset((a), 0, (s)); \
free((a)); \
(a) = NULL; \
} \
} while (0)
#endif
#ifndef SAFE_FREE
#define SAFE_FREE(a) SAFE_FREE2((a), sizeof(*(a)))
#endif
typedef struct dst_func {
int (*sign)(const int mode, DST_KEY *key, void **context,
const u_int8_t *data, const int len,
u_int8_t *signature, const int sig_len);
int (*verify)(const int mode, DST_KEY *key, void **context,
const u_int8_t *data, const int len,
const u_int8_t *signature, const int sig_len);
int (*compare)(const DST_KEY *key1, const DST_KEY *key2);
int (*generate)(DST_KEY *key, int parms);
void *(*destroy)(void *key);
/* conversion functions */
int (*to_dns_key)(const DST_KEY *key, u_int8_t *out,
const int out_len);
int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
const int str_len);
int (*to_file_fmt)(const DST_KEY *key, char *out,
const int out_len);
int (*from_file_fmt)(DST_KEY *key, const char *out,
const int out_len);
} dst_func;
extern dst_func *dst_t_func[DST_MAX_ALGS];
extern const char *key_file_fmt_str;
extern const char *dst_path;
#ifndef DST_HASH_SIZE
#define DST_HASH_SIZE 20 /*%< RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */
#endif
int dst_bsafe_init(void);
int dst_rsaref_init(void);
int dst_hmac_md5_init(void);
int dst_cylink_init(void);
int dst_eay_dss_init(void);
/* from higher level support routines */
int dst_s_calculate_bits( const u_int8_t *str, const int max_bits);
int dst_s_verify_str( const char **buf, const char *str);
/* conversion between dns names and key file names */
size_t dst_s_filename_length( const char *name, const char *suffix);
int dst_s_build_filename( char *filename, const char *name,
u_int16_t id, int alg, const char *suffix,
size_t filename_length);
FILE *dst_s_fopen (const char *filename, const char *mode, int perm);
/*%
* read and write network byte order into u_int?_t
* all of these should be retired
*/
u_int16_t dst_s_get_int16( const u_int8_t *buf);
void dst_s_put_int16( u_int8_t *buf, const u_int16_t val);
u_int32_t dst_s_get_int32( const u_int8_t *buf);
void dst_s_put_int32( u_int8_t *buf, const u_int32_t val);
#ifdef DUMP
# undef DUMP
# define DUMP(a,b,c,d) dst_s_dump(a,b,c,d)
#else
# define DUMP(a,b,c,d)
#endif
void
dst_s_dump(const int mode, const u_char *data, const int size,
const char *msg);
#define KEY_FILE_FMT_STR "Private-key-format: v%s\nAlgorithm: %d (%s)\n"
#endif /* DST_INTERNAL_H */
/*! \file */