external/bsd/libbind/dist/dst/dst_internal.h

   1 /*      $NetBSD$        */
   2
   3 #ifndef DST_INTERNAL_H
   4 #define DST_INTERNAL_H
   5
   6 /*
   7  * Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
   8  *
   9  * Permission to use, copy modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS
  14  * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL
  16  * TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT,
  17  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
  18  * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
  19  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  20  * WITH THE USE OR PERFORMANCE OF THE SOFTWARE.
  21  */
  22 #include <limits.h>
  23 #include <sys/param.h>
  24 #if (!defined(BSD)) || (BSD < 199306)
  25 # include <sys/bitypes.h>
  26 #else
  27 # include <sys/types.h>
  28 #endif
  29
  30 #ifndef PATH_MAX
  31 # ifdef POSIX_PATH_MAX
  32 #  define PATH_MAX POSIX_PATH_MAX
  33 # else
  34 #  define PATH_MAX 255 /*%< this is the value of POSIX_PATH_MAX */
  35 # endif
  36 #endif
  37
  38 typedef struct dst_key {
  39         char    *dk_key_name;   /*%< name of the key */
  40         int     dk_key_size;    /*%< this is the size of the key in bits */
  41         int     dk_proto;       /*%< what protocols this key can be used for */
  42         int     dk_alg;         /*%< algorithm number from key record */
  43         u_int32_t dk_flags;     /*%< and the flags of the public key */
  44         u_int16_t dk_id;        /*%< identifier of the key */
  45         void    *dk_KEY_struct; /*%< pointer to key in crypto pkg fmt */
  46         struct dst_func *dk_func; /*%< point to cryptto pgk specific function table */
  47 } DST_KEY;
  48 #define HAS_DST_KEY
  49
  50 #include <isc/dst.h>
  51 /*
  52  * define what crypto systems are supported for RSA,
  53  * BSAFE is prefered over RSAREF; only one can be set at any time
  54  */
  55 #if defined(BSAFE) && defined(RSAREF)
  56 # error "Cannot have both BSAFE and RSAREF defined"
  57 #endif
  58
  59 /* Declare dst_lib specific constants */
  60 #define KEY_FILE_FORMAT "1.2"
  61
  62 /* suffixes for key file names */
  63 #define PRIVATE_KEY             "private"
  64 #define PUBLIC_KEY              "key"
  65
  66 /* error handling */
  67 #ifdef REPORT_ERRORS
  68 #define EREPORT(str)            printf str
  69 #else
  70 #define EREPORT(str)            (void)0
  71 #endif
  72
  73 /* use our own special macro to FRRE memory */
  74
  75 #ifndef SAFE_FREE
  76 #define SAFE_FREE(a) \
  77 do{if(a != NULL){memset(a,0, sizeof(*a)); free(a); a=NULL;}} while (0)
  78 #define SAFE_FREE2(a,s) if (a != NULL && (long)s > 0){memset(a,0, s);free(a); a=NULL;}
  79 #endif
  80
  81 typedef struct dst_func {
  82         int (*sign)(const int mode, DST_KEY *key, void **context,
  83                      const u_int8_t *data, const int len,
  84                      u_int8_t *signature, const int sig_len);
  85         int (*verify)(const int mode, DST_KEY *key, void **context,
  86                        const u_int8_t *data, const int len,
  87                        const u_int8_t *signature, const int sig_len);
  88         int (*compare)(const DST_KEY *key1, const DST_KEY *key2);
  89         int (*generate)(DST_KEY *key, int parms);
  90         void *(*destroy)(void *key);
  91         /* conversion functions */
  92         int (*to_dns_key)(const DST_KEY *key, u_int8_t *out,
  93                            const int out_len);
  94         int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
  95                              const int str_len);
  96         int (*to_file_fmt)(const DST_KEY *key, char *out,
  97                             const int out_len);
  98         int (*from_file_fmt)(DST_KEY *key, const char *out,
  99                               const int out_len);
 100
 101 } dst_func;
 102
 103 extern dst_func *dst_t_func[DST_MAX_ALGS];
 104 extern const char *key_file_fmt_str;
 105 extern const char *dst_path;
 106
 107 #ifndef DST_HASH_SIZE
 108 #define DST_HASH_SIZE 20        /*%< RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */
 109 #endif
 110
 111 int dst_bsafe_init(void);
 112
 113 int dst_rsaref_init(void);
 114
 115 int dst_hmac_md5_init(void);
 116
 117 int dst_cylink_init(void);
 118
 119 int dst_eay_dss_init(void);
 120
 121 /* from higher level support routines */
 122 int       dst_s_calculate_bits( const u_int8_t *str, const int max_bits);
 123 int       dst_s_verify_str( const char **buf, const char *str);
 124
 125
 126 /* conversion between dns names and key file names */
 127 size_t    dst_s_filename_length( const char *name, const char *suffix);
 128 int       dst_s_build_filename(  char *filename, const char *name,
 129                                  u_int16_t id, int alg, const char *suffix,
 130                                  size_t filename_length);
 131
 132 FILE      *dst_s_fopen (const char *filename, const char *mode, int perm);
 133
 134 /*%
 135  * read and write network byte order into u_int?_t
 136  *  all of these should be retired
 137  */
 138 u_int16_t dst_s_get_int16( const u_int8_t *buf);
 139 void      dst_s_put_int16( u_int8_t *buf, const u_int16_t val);
 140
 141 u_int32_t dst_s_get_int32( const u_int8_t *buf);
 142 void      dst_s_put_int32( u_int8_t *buf, const u_int32_t val);
 143
 144 #ifdef DUMP
 145 # undef DUMP
 146 # define DUMP(a,b,c,d) dst_s_dump(a,b,c,d)
 147 #else
 148 # define DUMP(a,b,c,d)
 149 #endif
 150 void
 151 dst_s_dump(const int mode, const u_char *data, const int size,
 152             const char *msg);
 153
 154
 155
 156 #endif /* DST_INTERNAL_H */
 157 /*! \file */