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#ifndef DST_INTERNAL_H
#define DST_INTERNAL_H
/*
* Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
* Portions Copyright (c) 2007,2009 by Internet Systems Consortium, Inc. ("ISC")
*
* 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>
#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 */
unsigned dk_flags; /* and the flags of the public key */
unsigned dk_id; /* identifier of the key */
void *dk_KEY_struct; /* pointer to key in crypto pkg fmt */
struct dst_func *dk_func; /* point to crypto pgk specific function table */
} DST_KEY;
#define HAS_DST_KEY
#include <isc-dhcp/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 REPORT_ERRORS
#define EREPORT(str) printf str
#else
#define EREPORT(str)
#endif
/* use our own special macro to FRRE memory */
#ifndef SAFE_FREE
#define SAFE_FREE(a) if(a != NULL){memset(a,0, sizeof(*a)); free(a); a=NULL;}
#define SAFE_FREE2(a,s) if (a != NULL && s > 0){memset(a,0, s);free(a); a=NULL;}
#endif
typedef struct dst_func {
int (*sign)(const int mode, DST_KEY *key, void **context,
const u_int8_t *data, const unsigned len,
u_int8_t *signature, const unsigned sig_len);
int (*verify)(const int mode, DST_KEY *key, void **context,
const u_int8_t *data, const unsigned len,
const u_int8_t *signature, const unsigned 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 unsigned out_len);
int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
const unsigned str_len);
int (*to_file_fmt)(const DST_KEY *key, char *out,
const unsigned out_len);
int (*from_file_fmt)(DST_KEY *key, const char *out,
const unsigned 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
#if 0
int dst_bsafe_init(void);
int dst_rsaref_init(void);
#endif
int dst_hmac_md5_init(void);
#if 0
int dst_cylink_init(void);
int dst_eay_dss_init(void);
#endif
/* support functions */
/* base64 to bignum conversion routines */
int dst_s_conv_bignum_u8_to_b64( char *out_buf, const unsigned out_len,
const char *header,
const u_int8_t *bin_data,
const unsigned bin_len);
int dst_s_conv_bignum_b64_to_u8( const char **buf, u_int8_t *loc,
const unsigned loclen) ;
/* 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,
unsigned id, int alg, const char *suffix,
size_t filename_length);
FILE *dst_s_fopen (const char *filename, const char *mode, unsigned perm);
/* from file prandom.c */
int dst_s_random( u_int8_t *output, unsigned size);
int dst_s_semi_random( u_int8_t *output, unsigned size);
u_int32_t dst_s_quick_random( int inc);
void dst_s_quick_random_set( u_int32_t val, u_int32_t cnt);
/*
* 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
#if defined (MINIRES_LIB)
#define b64_pton MRb64_pton
#define b64_ntop MRb64_ntop
int b64_pton (char const *, unsigned char *, size_t);
int b64_ntop (unsigned char const *, size_t, char *, size_t);
#define USE_MD5
#endif
#endif /* DST_INTERNAL_H */
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