161 lines
5.2 KiB
C
161 lines
5.2 KiB
C
#ifndef DST_INTERNAL_H
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#define DST_INTERNAL_H
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/*
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* Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
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*
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* Permission to use, copy modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS
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* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
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* TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THE SOFTWARE.
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*/
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#include <limits.h>
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#include <sys/param.h>
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#ifndef PATH_MAX
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# ifdef POSIX_PATH_MAX
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# define PATH_MAX POSIX_PATH_MAX
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# else
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# define PATH_MAX 255 /* this is the value of POSIX_PATH_MAX */
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# endif
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#endif
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typedef struct dst_key {
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char *dk_key_name; /* name of the key */
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int dk_key_size; /* this is the size of the key in bits */
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int dk_proto; /* what protocols this key can be used for */
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int dk_alg; /* algorithm number from key record */
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unsigned dk_flags; /* and the flags of the public key */
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unsigned dk_id; /* identifier of the key */
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void *dk_KEY_struct; /* pointer to key in crypto pkg fmt */
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struct dst_func *dk_func; /* point to cryptto pgk specific function table */
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} DST_KEY;
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#define HAS_DST_KEY
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#include <isc/dst.h>
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/*
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* define what crypto systems are supported for RSA,
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* BSAFE is prefered over RSAREF; only one can be set at any time
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*/
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#if defined(BSAFE) && defined(RSAREF)
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# error "Cannot have both BSAFE and RSAREF defined"
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#endif
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/* Declare dst_lib specific constants */
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#define KEY_FILE_FORMAT "1.2"
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/* suffixes for key file names */
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#define PRIVATE_KEY "private"
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#define PUBLIC_KEY "key"
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/* error handling */
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#ifdef REPORT_ERRORS
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#define EREPORT(str) printf str
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#else
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#define EREPORT(str)
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#endif
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/* use our own special macro to FRRE memory */
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#ifndef SAFE_FREE
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#define SAFE_FREE(a) if(a != NULL){memset(a,0, sizeof(*a)); free(a); a=NULL;}
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#define SAFE_FREE2(a,s) if (a != NULL && s > 0){memset(a,0, s);free(a); a=NULL;}
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#endif
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typedef struct dst_func {
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int (*sign)(const int mode, DST_KEY *key, void **context,
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const u_int8_t *data, const unsigned len,
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u_int8_t *signature, const unsigned sig_len);
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int (*verify)(const int mode, DST_KEY *key, void **context,
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const u_int8_t *data, const unsigned len,
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const u_int8_t *signature, const unsigned sig_len);
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int (*compare)(const DST_KEY *key1, const DST_KEY *key2);
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int (*generate)(DST_KEY *key, int parms);
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void *(*destroy)(void *key);
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/* conversion functions */
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int (*to_dns_key)(const DST_KEY *key, u_int8_t *out,
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const unsigned out_len);
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int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
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const unsigned str_len);
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int (*to_file_fmt)(const DST_KEY *key, char *out,
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const unsigned out_len);
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int (*from_file_fmt)(DST_KEY *key, const char *out,
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const unsigned out_len);
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} dst_func;
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extern dst_func *dst_t_func[DST_MAX_ALGS];
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extern const char *key_file_fmt_str;
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extern const char *dst_path;
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#ifndef DST_HASH_SIZE
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#define DST_HASH_SIZE 20 /* RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */
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#endif
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#if 0
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int dst_bsafe_init(void);
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int dst_rsaref_init(void);
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#endif
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int dst_hmac_md5_init(void);
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#if 0
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int dst_cylink_init(void);
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int dst_eay_dss_init(void);
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#endif
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/* support functions */
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/* base64 to bignum conversion routines */
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int dst_s_conv_bignum_u8_to_b64( char *out_buf, const unsigned out_len,
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const char *header,
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const u_int8_t *bin_data,
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const unsigned bin_len);
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int dst_s_conv_bignum_b64_to_u8( const char **buf, u_int8_t *loc,
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const unsigned loclen) ;
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/* from higher level support routines */
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int dst_s_calculate_bits( const u_int8_t *str, const int max_bits);
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int dst_s_verify_str( const char **buf, const char *str);
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/* conversion between dns names and key file names */
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size_t dst_s_filename_length( const char *name, const char *suffix);
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int dst_s_build_filename( char *filename, const char *name,
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unsigned id, int alg, const char *suffix,
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size_t filename_length);
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FILE *dst_s_fopen (const char *filename, const char *mode, unsigned perm);
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/* from file prandom.c */
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int dst_s_random( u_int8_t *output, unsigned size);
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int dst_s_semi_random( u_int8_t *output, unsigned size);
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u_int32_t dst_s_quick_random( int inc);
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void dst_s_quick_random_set( u_int32_t val, u_int32_t cnt);
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/*
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* read and write network byte order into u_int?_t
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* all of these should be retired
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*/
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u_int16_t dst_s_get_int16( const u_int8_t *buf);
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void dst_s_put_int16( u_int8_t *buf, const u_int16_t val);
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u_int32_t dst_s_get_int32( const u_int8_t *buf);
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void dst_s_put_int32( u_int8_t *buf, const u_int32_t val);
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#ifdef DUMP
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# undef DUMP
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# define DUMP(a,b,c,d) dst_s_dump(a,b,c,d)
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#else
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# define DUMP(a,b,c,d)
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#endif
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#endif /* DST_INTERNAL_H */
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