lib/minitasn1/libtasn1.h

   1 /*
   2  * Copyright (C) 2002-2012 Free Software Foundation, Inc.
   3  *
   4  * This file is part of LIBTASN1.
   5  *
   6  * LIBTASN1 is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU Lesser General Public License as
   8  * published by the Free Software Foundation; either version 2.1 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * LIBTASN1 is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with LIBTASN1; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19  * 02110-1301, USA
  20  *
  21  */
  22
  23 #ifndef LIBTASN1_H
  24 # define LIBTASN1_H
  25
  26 # ifndef ASN1_API
  27 #  if defined ASN1_BUILDING && defined HAVE_VISIBILITY && HAVE_VISIBILITY
  28 #   define ASN1_API __attribute__((__visibility__("default")))
  29 #  elif defined ASN1_BUILDING && defined _MSC_VER && ! defined ASN1_STATIC
  30 #   define ASN1_API __declspec(dllexport)
  31 #  elif defined _MSC_VER && ! defined ASN1_STATIC
  32 #   define ASN1_API __declspec(dllimport)
  33 #  else
  34 #   define ASN1_API
  35 #  endif
  36 # endif
  37
  38 #include <stdio.h>              /* for FILE* */
  39 #include <sys/types.h>
  40 #include <time.h>
  41
  42 #ifdef __cplusplus
  43 extern "C"
  44 {
  45 #endif
  46
  47 #define ASN1_VERSION "3.1"
  48
  49   /*****************************************/
  50   /* Errors returned by libtasn1 functions */
  51   /*****************************************/
  52 #define ASN1_SUCCESS                    0
  53 #define ASN1_FILE_NOT_FOUND             1
  54 #define ASN1_ELEMENT_NOT_FOUND          2
  55 #define ASN1_IDENTIFIER_NOT_FOUND       3
  56 #define ASN1_DER_ERROR                  4
  57 #define ASN1_VALUE_NOT_FOUND            5
  58 #define ASN1_GENERIC_ERROR              6
  59 #define ASN1_VALUE_NOT_VALID            7
  60 #define ASN1_TAG_ERROR                  8
  61 #define ASN1_TAG_IMPLICIT               9
  62 #define ASN1_ERROR_TYPE_ANY             10
  63 #define ASN1_SYNTAX_ERROR               11
  64 #define ASN1_MEM_ERROR                  12
  65 #define ASN1_MEM_ALLOC_ERROR            13
  66 #define ASN1_DER_OVERFLOW               14
  67 #define ASN1_NAME_TOO_LONG              15
  68 #define ASN1_ARRAY_ERROR                16
  69 #define ASN1_ELEMENT_NOT_EMPTY          17
  70
  71   /*************************************/
  72   /* Constants used in asn1_visit_tree */
  73   /*************************************/
  74 #define ASN1_PRINT_NAME                 1
  75 #define ASN1_PRINT_NAME_TYPE            2
  76 #define ASN1_PRINT_NAME_TYPE_VALUE      3
  77 #define ASN1_PRINT_ALL                  4
  78
  79   /*****************************************/
  80   /* Constants returned by asn1_read_tag   */
  81   /*****************************************/
  82 #define ASN1_CLASS_UNIVERSAL            0x00    /* old: 1 */
  83 #define ASN1_CLASS_APPLICATION          0x40    /* old: 2 */
  84 #define ASN1_CLASS_CONTEXT_SPECIFIC     0x80    /* old: 3 */
  85 #define ASN1_CLASS_PRIVATE              0xC0    /* old: 4 */
  86 #define ASN1_CLASS_STRUCTURED           0x20
  87
  88   /*****************************************/
  89   /* Constants returned by asn1_read_tag   */
  90   /*****************************************/
  91 #define ASN1_TAG_BOOLEAN                0x01
  92 #define ASN1_TAG_INTEGER                0x02
  93 #define ASN1_TAG_SEQUENCE               0x10
  94 #define ASN1_TAG_SET                    0x11
  95 #define ASN1_TAG_OCTET_STRING           0x04
  96 #define ASN1_TAG_BIT_STRING             0x03
  97 #define ASN1_TAG_UTCTime                0x17
  98 #define ASN1_TAG_GENERALIZEDTime        0x18
  99 #define ASN1_TAG_OBJECT_ID              0x06
 100 #define ASN1_TAG_ENUMERATED             0x0A
 101 #define ASN1_TAG_NULL                   0x05
 102 #define ASN1_TAG_GENERALSTRING          0x1B
 103 #define ASN1_TAG_NUMERIC_STRING         0x12
 104 #define ASN1_TAG_IA5_STRING             0x16
 105 #define ASN1_TAG_TELETEX_STRING         0x14
 106 #define ASN1_TAG_PRINTABLE_STRING       0x13
 107 #define ASN1_TAG_UNIVERSAL_STRING       0x1C
 108 #define ASN1_TAG_BMP_STRING             0x1E
 109 #define ASN1_TAG_UTF8_STRING            0x0C
 110 #define ASN1_TAG_VISIBLE_STRING         0x1A
 111
 112   /******************************************************/
 113   /* Structure definition used for the node of the tree */
 114   /* that represent an ASN.1 DEFINITION.                */
 115   /******************************************************/
 116
 117   typedef struct asn1_node_st asn1_node_st;
 118
 119   typedef asn1_node_st *asn1_node;
 120
 121   /* maximum number of characters of a name */
 122   /* inside a file with ASN1 definitons     */
 123 #define ASN1_MAX_NAME_SIZE 64
 124
 125
 126   /*****************************************/
 127   /* For the on-disk format of ASN.1 trees */
 128   /*****************************************/
 129   struct asn1_static_node_st
 130   {
 131     const char *name;           /* Node name */
 132     unsigned int type;          /* Node type */
 133     const void *value;          /* Node value */
 134   };
 135   typedef struct asn1_static_node_st asn1_static_node;
 136
 137 /* List of constants for field type of node_asn  */
 138 #define ASN1_ETYPE_INVALID        0
 139 #define ASN1_ETYPE_CONSTANT       1
 140 #define ASN1_ETYPE_IDENTIFIER     2
 141 #define ASN1_ETYPE_INTEGER        3
 142 #define ASN1_ETYPE_BOOLEAN        4
 143 #define ASN1_ETYPE_SEQUENCE       5
 144 #define ASN1_ETYPE_BIT_STRING     6
 145 #define ASN1_ETYPE_OCTET_STRING   7
 146 #define ASN1_ETYPE_TAG            8
 147 #define ASN1_ETYPE_DEFAULT        9
 148 #define ASN1_ETYPE_SIZE          10
 149 #define ASN1_ETYPE_SEQUENCE_OF   11
 150 #define ASN1_ETYPE_OBJECT_ID     12
 151 #define ASN1_ETYPE_ANY           13
 152 #define ASN1_ETYPE_SET           14
 153 #define ASN1_ETYPE_SET_OF        15
 154 #define ASN1_ETYPE_DEFINITIONS   16
 155 #define ASN1_ETYPE_CHOICE        18
 156 #define ASN1_ETYPE_IMPORTS       19
 157 #define ASN1_ETYPE_NULL          20
 158 #define ASN1_ETYPE_ENUMERATED    21
 159 #define ASN1_ETYPE_GENERALSTRING 27
 160 #define ASN1_ETYPE_NUMERIC_STRING 28
 161 #define ASN1_ETYPE_IA5_STRING     29
 162 #define ASN1_ETYPE_TELETEX_STRING 30
 163 #define ASN1_ETYPE_PRINTABLE_STRING 31
 164 #define ASN1_ETYPE_UNIVERSAL_STRING 32
 165 #define ASN1_ETYPE_BMP_STRING     33
 166 #define ASN1_ETYPE_UTF8_STRING    34
 167 #define ASN1_ETYPE_VISIBLE_STRING 35
 168 #define ASN1_ETYPE_UTC_TIME       36
 169 #define ASN1_ETYPE_GENERALIZED_TIME 37
 170
 171   struct asn1_data_node_st
 172   {
 173     const char *name;           /* Node name */
 174     const void *value;          /* Node value */
 175     unsigned int value_len;     /* Node value size */
 176     unsigned int type;          /* Node value type (ASN1_ETYPE_*) */
 177   };
 178   typedef struct asn1_data_node_st asn1_data_node_st;
 179
 180   /***********************************/
 181   /*  Fixed constants                */
 182   /***********************************/
 183
 184
 185   /* maximum number of characters */
 186   /* of a description message     */
 187   /* (null character included)    */
 188 #define ASN1_MAX_ERROR_DESCRIPTION_SIZE 128
 189
 190   /***********************************/
 191   /*  Functions definitions          */
 192   /***********************************/
 193
 194   extern ASN1_API int
 195     asn1_parser2tree (const char *file_name,
 196                       asn1_node * definitions, char *errorDescription);
 197
 198   extern ASN1_API int
 199     asn1_parser2array (const char *inputFileName,
 200                        const char *outputFileName,
 201                        const char *vectorName, char *errorDescription);
 202
 203   extern ASN1_API int
 204     asn1_array2tree (const asn1_static_node * array,
 205                      asn1_node * definitions, char *errorDescription);
 206
 207   extern ASN1_API void
 208     asn1_print_structure (FILE * out, asn1_node structure,
 209                           const char *name, int mode);
 210
 211   extern ASN1_API int
 212     asn1_create_element (asn1_node definitions,
 213                          const char *source_name, asn1_node * element);
 214
 215   extern ASN1_API int asn1_delete_structure (asn1_node * structure);
 216
 217   extern ASN1_API int
 218     asn1_delete_element (asn1_node structure, const char *element_name);
 219
 220   extern ASN1_API int
 221     asn1_write_value (asn1_node node_root, const char *name,
 222                       const void *ivalue, int len);
 223
 224   extern ASN1_API int
 225     asn1_read_value (asn1_node root, const char *name,
 226                      void *ivalue, int *len);
 227
 228   extern ASN1_API int
 229     asn1_read_value_type (asn1_node root, const char *name,
 230                           void *ivalue, int *len, unsigned int* etype);
 231
 232   extern ASN1_API int
 233     asn1_read_node_value (asn1_node node, asn1_data_node_st* data);
 234
 235   extern ASN1_API int
 236     asn1_number_of_elements (asn1_node element, const char *name, int *num);
 237
 238   extern ASN1_API int
 239     asn1_der_coding (asn1_node element, const char *name,
 240                      void *ider, int *len, char *ErrorDescription);
 241
 242   extern ASN1_API int
 243     asn1_der_decoding (asn1_node * element, const void *ider,
 244                        int len, char *errorDescription);
 245
 246   extern ASN1_API int
 247     asn1_der_decoding_element (asn1_node * structure,
 248                                const char *elementName,
 249                                const void *ider, int len,
 250                                char *errorDescription);
 251
 252   extern ASN1_API int
 253     asn1_der_decoding_startEnd (asn1_node element,
 254                                 const void *ider, int len,
 255                                 const char *name_element,
 256                                 int *start, int *end);
 257
 258   extern ASN1_API int
 259     asn1_expand_any_defined_by (asn1_node definitions, asn1_node * element);
 260
 261   extern ASN1_API int
 262     asn1_expand_octet_string (asn1_node definitions,
 263                               asn1_node * element,
 264                               const char *octetName, const char *objectName);
 265
 266   extern ASN1_API int
 267     asn1_read_tag (asn1_node root, const char *name,
 268                    int *tagValue, int *classValue);
 269
 270   extern ASN1_API const char *asn1_find_structure_from_oid (asn1_node
 271                                                             definitions,
 272                                                             const char
 273                                                             *oidValue);
 274
 275   extern ASN1_API const char *asn1_check_version (const char *req_version);
 276
 277   extern ASN1_API const char *asn1_strerror (int error);
 278
 279   extern ASN1_API void asn1_perror (int error);
 280
 281 #define ASN1_MAX_TAG_SIZE 4
 282 #define ASN1_MAX_LENGTH_SIZE 9
 283 #define ASN1_MAX_TL_SIZE (ASN1_MAX_TAG_SIZE+ASN1_MAX_LENGTH_SIZE)
 284   extern ASN1_API long
 285     asn1_get_length_der (const unsigned char *der, int der_len, int *len);
 286
 287   extern ASN1_API long
 288     asn1_get_length_ber (const unsigned char *ber, int ber_len, int *len);
 289
 290   extern ASN1_API void
 291     asn1_length_der (unsigned long int len, unsigned char *ans, int *ans_len);
 292
 293   /* Other utility functions. */
 294
 295   extern ASN1_API
 296     int asn1_decode_simple_der (unsigned int etype, const unsigned char *der, unsigned int der_len,
 297                         const unsigned char **str, unsigned int *str_len);
 298
 299   extern ASN1_API int
 300     asn1_encode_simple_der (unsigned int etype, const unsigned char *str, unsigned int str_len,
 301                         unsigned char *tl, unsigned int *tl_len);
 302
 303   extern ASN1_API asn1_node
 304     asn1_find_node (asn1_node pointer, const char *name);
 305
 306   extern ASN1_API int
 307     asn1_copy_node (asn1_node dst, const char *dst_name,
 308                     asn1_node src, const char *src_name);
 309
 310   /* Internal and low-level DER utility functions. */
 311
 312   extern ASN1_API int
 313     asn1_get_tag_der (const unsigned char *der, int der_len,
 314                       unsigned char *cls, int *len, unsigned long *tag);
 315
 316   extern ASN1_API void
 317     asn1_octet_der (const unsigned char *str, int str_len,
 318                     unsigned char *der, int *der_len);
 319
 320   extern ASN1_API int
 321     asn1_get_octet_der (const unsigned char *der, int der_len,
 322                         int *ret_len, unsigned char *str,
 323                         int str_size, int *str_len);
 324
 325   extern ASN1_API void asn1_bit_der (const unsigned char *str, int bit_len,
 326                                      unsigned char *der, int *der_len);
 327
 328   extern ASN1_API int
 329     asn1_get_bit_der (const unsigned char *der, int der_len,
 330                       int *ret_len, unsigned char *str,
 331                       int str_size, int *bit_len);
 332
 333 /* Compatibility types */
 334
 335 typedef int asn1_retCode;       /* type returned by libtasn1 functions */
 336
 337 #define node_asn_struct asn1_node_st
 338 #define node_asn asn1_node_st
 339 #define ASN1_TYPE asn1_node
 340 #define ASN1_TYPE_EMPTY NULL
 341
 342 #define static_struct_asn asn1_static_node_st
 343 #define ASN1_ARRAY_TYPE asn1_static_node
 344 #define asn1_static_node_t asn1_static_node
 345
 346 #define node_data_struct asn1_data_node_st
 347 #define ASN1_DATA_NODE asn1_data_node_st
 348
 349 #ifdef __cplusplus
 350 }
 351 #endif
 352
 353 #endif                          /* LIBTASN1_H */