1 /* 2 * Copyright 1999-2002 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 #ifndef DST_INTERNAL_H 9 #define DST_INTERNAL_H 10 11 /* 12 * Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc. 13 * 14 * Permission to use, copy modify, and distribute this software for any 15 * purpose with or without fee is hereby granted, provided that the above 16 * copyright notice and this permission notice appear in all copies. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS 19 * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL 21 * TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT, 22 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING 23 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 24 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 25 * WITH THE USE OR PERFORMANCE OF THE SOFTWARE. 26 */ 27 #include <limits.h> 28 #include <sys/param.h> 29 #if (!defined(BSD)) || (BSD < 199306) 30 # include <sys/bitypes.h> 31 #else 32 # include <sys/types.h> 33 #endif 34 35 #ifndef PATH_MAX 36 # ifdef POSIX_PATH_MAX 37 # define PATH_MAX POSIX_PATH_MAX 38 # else 39 # define PATH_MAX 255 /* this is the value of POSIX_PATH_MAX */ 40 # endif 41 #endif 42 43 typedef struct dst_key { 44 char *dk_key_name; /* name of the key */ 45 int dk_key_size; /* this is the size of the key in bits */ 46 int dk_proto; /* what protocols this key can be used for */ 47 int dk_alg; /* algorithm number from key record */ 48 u_int32_t dk_flags; /* and the flags of the public key */ 49 u_int16_t dk_id; /* identifier of the key */ 50 void *dk_KEY_struct; /* pointer to key in crypto pkg fmt */ 51 struct dst_func *dk_func; /* point to cryptto pgk specific function table */ 52 } DST_KEY; 53 #define HAS_DST_KEY 54 55 #include <isc/dst.h> 56 /* 57 * define what crypto systems are supported for RSA, 58 * BSAFE is prefered over RSAREF; only one can be set at any time 59 */ 60 #if defined(BSAFE) && defined(RSAREF) 61 # error "Cannot have both BSAFE and RSAREF defined" 62 #endif 63 64 /* Declare dst_lib specific constants */ 65 #define KEY_FILE_FORMAT "1.2" 66 67 /* suffixes for key file names */ 68 #define PRIVATE_KEY "private" 69 #define PUBLIC_KEY "key" 70 71 /* error handling */ 72 #ifdef REPORT_ERRORS 73 #define EREPORT(str) printf str 74 #else 75 #define EREPORT(str) (void)0 76 #endif 77 78 /* use our own special macro to FRRE memory */ 79 80 #ifndef SAFE_FREE 81 #define SAFE_FREE(a) \ 82 do{if(a != NULL){memset(a,0, sizeof(*a)); free(a); a=NULL;}} while (0) 83 #define SAFE_FREE2(a,s) if (a != NULL && s > 0){memset(a,0, s);free(a); a=NULL;} 84 #endif 85 86 typedef struct dst_func { 87 int (*sign)(const int mode, DST_KEY *key, void **context, 88 const u_int8_t *data, const int len, 89 u_int8_t *signature, const int sig_len); 90 int (*verify)(const int mode, DST_KEY *key, void **context, 91 const u_int8_t *data, const int len, 92 const u_int8_t *signature, const int sig_len); 93 int (*compare)(const DST_KEY *key1, const DST_KEY *key2); 94 int (*generate)(DST_KEY *key, int parms); 95 void *(*destroy)(void *key); 96 /* conversion functions */ 97 int (*to_dns_key)(const DST_KEY *key, u_int8_t *out, 98 const int out_len); 99 int (*from_dns_key)(DST_KEY *key, const u_int8_t *str, 100 const int str_len); 101 int (*to_file_fmt)(const DST_KEY *key, char *out, 102 const int out_len); 103 int (*from_file_fmt)(DST_KEY *key, const char *out, 104 const int out_len); 105 106 } dst_func; 107 108 extern dst_func *dst_t_func[DST_MAX_ALGS]; 109 extern const char *key_file_fmt_str; 110 extern const char *dst_path; 111 112 #ifndef DST_HASH_SIZE 113 #define DST_HASH_SIZE 20 /* RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */ 114 #endif 115 116 int dst_bsafe_init(void); 117 118 int dst_rsaref_init(void); 119 120 int dst_hmac_md5_init(void); 121 122 int dst_cylink_init(void); 123 124 int dst_eay_dss_init(void); 125 126 /* support functions */ 127 /* base64 to bignum conversion routines */ 128 int dst_s_conv_bignum_u8_to_b64( char *out_buf, const int out_len, 129 const char *header, 130 const u_int8_t *bin_data, 131 const int bin_len); 132 int dst_s_conv_bignum_b64_to_u8( const char **buf, u_int8_t *loc, 133 const int loclen) ; 134 /* from higher level support routines */ 135 int dst_s_calculate_bits( const u_int8_t *str, const int max_bits); 136 int dst_s_verify_str( const char **buf, const char *str); 137 138 139 /* conversion between dns names and key file names */ 140 size_t dst_s_filename_length( const char *name, const char *suffix); 141 int dst_s_build_filename( char *filename, const char *name, 142 u_int16_t id, int alg, const char *suffix, 143 size_t filename_length); 144 145 FILE *dst_s_fopen (const char *filename, const char *mode, int perm); 146 147 /* from file prandom.c */ 148 int dst_s_random( u_int8_t *output, int size); 149 int dst_s_semi_random( u_int8_t *output, int size); 150 u_int32_t dst_s_quick_random( int inc); 151 void dst_s_quick_random_set( u_int32_t val, u_int32_t cnt); 152 153 /* 154 * read and write network byte order into u_int?_t 155 * all of these should be retired 156 */ 157 u_int16_t dst_s_get_int16( const u_int8_t *buf); 158 void dst_s_put_int16( u_int8_t *buf, const u_int16_t val); 159 160 u_int32_t dst_s_get_int32( const u_int8_t *buf); 161 void dst_s_put_int32( u_int8_t *buf, const u_int32_t val); 162 163 #ifdef DUMP 164 # undef DUMP 165 # define DUMP(a,b,c,d) dst_s_dump(a,b,c,d) 166 #else 167 # define DUMP(a,b,c,d) 168 #endif 169 void 170 dst_s_dump(const int mode, const u_char *data, const int size, 171 const char *msg); 172 173 174 175 #endif /* DST_INTERNAL_H */ 176