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 */ 156