contrib/bind-9.5.2/lib/bind/dst/dst_internal.h

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