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      1 /*
      2  * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the OpenSSL license (the "License").  You may not use
      5  * this file except in compliance with the License.  You can obtain a copy
      6  * in the file LICENSE in the source distribution or at
      7  * https://www.openssl.org/source/license.html
      8  */
      9 
     10 #ifndef HEADER_ASN1_H
     11 # define HEADER_ASN1_H
     12 
     13 # include <time.h>
     14 # include <openssl/e_os2.h>
     15 # include <openssl/opensslconf.h>
     16 # include <openssl/bio.h>
     17 # include <openssl/safestack.h>
     18 # include <openssl/asn1err.h>
     19 # include <openssl/symhacks.h>
     20 
     21 # include <openssl/ossl_typ.h>
     22 # if OPENSSL_API_COMPAT < 0x10100000L
     23 #  include <openssl/bn.h>
     24 # endif
     25 
     26 # ifdef OPENSSL_BUILD_SHLIBCRYPTO
     27 #  undef OPENSSL_EXTERN
     28 #  define OPENSSL_EXTERN OPENSSL_EXPORT
     29 # endif
     30 
     31 #ifdef  __cplusplus
     32 extern "C" {
     33 #endif
     34 
     35 # define V_ASN1_UNIVERSAL                0x00
     36 # define V_ASN1_APPLICATION              0x40
     37 # define V_ASN1_CONTEXT_SPECIFIC         0x80
     38 # define V_ASN1_PRIVATE                  0xc0
     39 
     40 # define V_ASN1_CONSTRUCTED              0x20
     41 # define V_ASN1_PRIMITIVE_TAG            0x1f
     42 # define V_ASN1_PRIMATIVE_TAG /*compat*/ V_ASN1_PRIMITIVE_TAG
     43 
     44 # define V_ASN1_APP_CHOOSE               -2/* let the recipient choose */
     45 # define V_ASN1_OTHER                    -3/* used in ASN1_TYPE */
     46 # define V_ASN1_ANY                      -4/* used in ASN1 template code */
     47 
     48 # define V_ASN1_UNDEF                    -1
     49 /* ASN.1 tag values */
     50 # define V_ASN1_EOC                      0
     51 # define V_ASN1_BOOLEAN                  1 /**/
     52 # define V_ASN1_INTEGER                  2
     53 # define V_ASN1_BIT_STRING               3
     54 # define V_ASN1_OCTET_STRING             4
     55 # define V_ASN1_NULL                     5
     56 # define V_ASN1_OBJECT                   6
     57 # define V_ASN1_OBJECT_DESCRIPTOR        7
     58 # define V_ASN1_EXTERNAL                 8
     59 # define V_ASN1_REAL                     9
     60 # define V_ASN1_ENUMERATED               10
     61 # define V_ASN1_UTF8STRING               12
     62 # define V_ASN1_SEQUENCE                 16
     63 # define V_ASN1_SET                      17
     64 # define V_ASN1_NUMERICSTRING            18 /**/
     65 # define V_ASN1_PRINTABLESTRING          19
     66 # define V_ASN1_T61STRING                20
     67 # define V_ASN1_TELETEXSTRING            20/* alias */
     68 # define V_ASN1_VIDEOTEXSTRING           21 /**/
     69 # define V_ASN1_IA5STRING                22
     70 # define V_ASN1_UTCTIME                  23
     71 # define V_ASN1_GENERALIZEDTIME          24 /**/
     72 # define V_ASN1_GRAPHICSTRING            25 /**/
     73 # define V_ASN1_ISO64STRING              26 /**/
     74 # define V_ASN1_VISIBLESTRING            26/* alias */
     75 # define V_ASN1_GENERALSTRING            27 /**/
     76 # define V_ASN1_UNIVERSALSTRING          28 /**/
     77 # define V_ASN1_BMPSTRING                30
     78 
     79 /*
     80  * NB the constants below are used internally by ASN1_INTEGER
     81  * and ASN1_ENUMERATED to indicate the sign. They are *not* on
     82  * the wire tag values.
     83  */
     84 
     85 # define V_ASN1_NEG                      0x100
     86 # define V_ASN1_NEG_INTEGER              (2 | V_ASN1_NEG)
     87 # define V_ASN1_NEG_ENUMERATED           (10 | V_ASN1_NEG)
     88 
     89 /* For use with d2i_ASN1_type_bytes() */
     90 # define B_ASN1_NUMERICSTRING    0x0001
     91 # define B_ASN1_PRINTABLESTRING  0x0002
     92 # define B_ASN1_T61STRING        0x0004
     93 # define B_ASN1_TELETEXSTRING    0x0004
     94 # define B_ASN1_VIDEOTEXSTRING   0x0008
     95 # define B_ASN1_IA5STRING        0x0010
     96 # define B_ASN1_GRAPHICSTRING    0x0020
     97 # define B_ASN1_ISO64STRING      0x0040
     98 # define B_ASN1_VISIBLESTRING    0x0040
     99 # define B_ASN1_GENERALSTRING    0x0080
    100 # define B_ASN1_UNIVERSALSTRING  0x0100
    101 # define B_ASN1_OCTET_STRING     0x0200
    102 # define B_ASN1_BIT_STRING       0x0400
    103 # define B_ASN1_BMPSTRING        0x0800
    104 # define B_ASN1_UNKNOWN          0x1000
    105 # define B_ASN1_UTF8STRING       0x2000
    106 # define B_ASN1_UTCTIME          0x4000
    107 # define B_ASN1_GENERALIZEDTIME  0x8000
    108 # define B_ASN1_SEQUENCE         0x10000
    109 /* For use with ASN1_mbstring_copy() */
    110 # define MBSTRING_FLAG           0x1000
    111 # define MBSTRING_UTF8           (MBSTRING_FLAG)
    112 # define MBSTRING_ASC            (MBSTRING_FLAG|1)
    113 # define MBSTRING_BMP            (MBSTRING_FLAG|2)
    114 # define MBSTRING_UNIV           (MBSTRING_FLAG|4)
    115 # define SMIME_OLDMIME           0x400
    116 # define SMIME_CRLFEOL           0x800
    117 # define SMIME_STREAM            0x1000
    118     struct X509_algor_st;
    119 DEFINE_STACK_OF(X509_ALGOR)
    120 
    121 # define ASN1_STRING_FLAG_BITS_LEFT 0x08/* Set if 0x07 has bits left value */
    122 /*
    123  * This indicates that the ASN1_STRING is not a real value but just a place
    124  * holder for the location where indefinite length constructed data should be
    125  * inserted in the memory buffer
    126  */
    127 # define ASN1_STRING_FLAG_NDEF 0x010
    128 
    129 /*
    130  * This flag is used by the CMS code to indicate that a string is not
    131  * complete and is a place holder for content when it had all been accessed.
    132  * The flag will be reset when content has been written to it.
    133  */
    134 
    135 # define ASN1_STRING_FLAG_CONT 0x020
    136 /*
    137  * This flag is used by ASN1 code to indicate an ASN1_STRING is an MSTRING
    138  * type.
    139  */
    140 # define ASN1_STRING_FLAG_MSTRING 0x040
    141 /* String is embedded and only content should be freed */
    142 # define ASN1_STRING_FLAG_EMBED 0x080
    143 /* String should be parsed in RFC 5280's time format */
    144 # define ASN1_STRING_FLAG_X509_TIME 0x100
    145 /* This is the base type that holds just about everything :-) */
    146 struct asn1_string_st {
    147     int length;
    148     int type;
    149     unsigned char *data;
    150     /*
    151      * The value of the following field depends on the type being held.  It
    152      * is mostly being used for BIT_STRING so if the input data has a
    153      * non-zero 'unused bits' value, it will be handled correctly
    154      */
    155     long flags;
    156 };
    157 
    158 /*
    159  * ASN1_ENCODING structure: this is used to save the received encoding of an
    160  * ASN1 type. This is useful to get round problems with invalid encodings
    161  * which can break signatures.
    162  */
    163 
    164 typedef struct ASN1_ENCODING_st {
    165     unsigned char *enc;         /* DER encoding */
    166     long len;                   /* Length of encoding */
    167     int modified;               /* set to 1 if 'enc' is invalid */
    168 } ASN1_ENCODING;
    169 
    170 /* Used with ASN1 LONG type: if a long is set to this it is omitted */
    171 # define ASN1_LONG_UNDEF 0x7fffffffL
    172 
    173 # define STABLE_FLAGS_MALLOC     0x01
    174 /*
    175  * A zero passed to ASN1_STRING_TABLE_new_add for the flags is interpreted
    176  * as "don't change" and STABLE_FLAGS_MALLOC is always set. By setting
    177  * STABLE_FLAGS_MALLOC only we can clear the existing value. Use the alias
    178  * STABLE_FLAGS_CLEAR to reflect this.
    179  */
    180 # define STABLE_FLAGS_CLEAR      STABLE_FLAGS_MALLOC
    181 # define STABLE_NO_MASK          0x02
    182 # define DIRSTRING_TYPE  \
    183  (B_ASN1_PRINTABLESTRING|B_ASN1_T61STRING|B_ASN1_BMPSTRING|B_ASN1_UTF8STRING)
    184 # define PKCS9STRING_TYPE (DIRSTRING_TYPE|B_ASN1_IA5STRING)
    185 
    186 typedef struct asn1_string_table_st {
    187     int nid;
    188     long minsize;
    189     long maxsize;
    190     unsigned long mask;
    191     unsigned long flags;
    192 } ASN1_STRING_TABLE;
    193 
    194 DEFINE_STACK_OF(ASN1_STRING_TABLE)
    195 
    196 /* size limits: this stuff is taken straight from RFC2459 */
    197 
    198 # define ub_name                         32768
    199 # define ub_common_name                  64
    200 # define ub_locality_name                128
    201 # define ub_state_name                   128
    202 # define ub_organization_name            64
    203 # define ub_organization_unit_name       64
    204 # define ub_title                        64
    205 # define ub_email_address                128
    206 
    207 /*
    208  * Declarations for template structures: for full definitions see asn1t.h
    209  */
    210 typedef struct ASN1_TEMPLATE_st ASN1_TEMPLATE;
    211 typedef struct ASN1_TLC_st ASN1_TLC;
    212 /* This is just an opaque pointer */
    213 typedef struct ASN1_VALUE_st ASN1_VALUE;
    214 
    215 /* Declare ASN1 functions: the implement macro in in asn1t.h */
    216 
    217 # define DECLARE_ASN1_FUNCTIONS(type) DECLARE_ASN1_FUNCTIONS_name(type, type)
    218 
    219 # define DECLARE_ASN1_ALLOC_FUNCTIONS(type) \
    220         DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, type)
    221 
    222 # define DECLARE_ASN1_FUNCTIONS_name(type, name) \
    223         DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
    224         DECLARE_ASN1_ENCODE_FUNCTIONS(type, name, name)
    225 
    226 # define DECLARE_ASN1_FUNCTIONS_fname(type, itname, name) \
    227         DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
    228         DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name)
    229 
    230 # define DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name) \
    231         type *d2i_##name(type **a, const unsigned char **in, long len); \
    232         int i2d_##name(type *a, unsigned char **out); \
    233         DECLARE_ASN1_ITEM(itname)
    234 
    235 # define DECLARE_ASN1_ENCODE_FUNCTIONS_const(type, name) \
    236         type *d2i_##name(type **a, const unsigned char **in, long len); \
    237         int i2d_##name(const type *a, unsigned char **out); \
    238         DECLARE_ASN1_ITEM(name)
    239 
    240 # define DECLARE_ASN1_NDEF_FUNCTION(name) \
    241         int i2d_##name##_NDEF(name *a, unsigned char **out);
    242 
    243 # define DECLARE_ASN1_FUNCTIONS_const(name) \
    244         DECLARE_ASN1_ALLOC_FUNCTIONS(name) \
    245         DECLARE_ASN1_ENCODE_FUNCTIONS_const(name, name)
    246 
    247 # define DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
    248         type *name##_new(void); \
    249         void name##_free(type *a);
    250 
    251 # define DECLARE_ASN1_PRINT_FUNCTION(stname) \
    252         DECLARE_ASN1_PRINT_FUNCTION_fname(stname, stname)
    253 
    254 # define DECLARE_ASN1_PRINT_FUNCTION_fname(stname, fname) \
    255         int fname##_print_ctx(BIO *out, stname *x, int indent, \
    256                                          const ASN1_PCTX *pctx);
    257 
    258 # define D2I_OF(type) type *(*)(type **,const unsigned char **,long)
    259 # define I2D_OF(type) int (*)(type *,unsigned char **)
    260 # define I2D_OF_const(type) int (*)(const type *,unsigned char **)
    261 
    262 # define CHECKED_D2I_OF(type, d2i) \
    263     ((d2i_of_void*) (1 ? d2i : ((D2I_OF(type))0)))
    264 # define CHECKED_I2D_OF(type, i2d) \
    265     ((i2d_of_void*) (1 ? i2d : ((I2D_OF(type))0)))
    266 # define CHECKED_NEW_OF(type, xnew) \
    267     ((void *(*)(void)) (1 ? xnew : ((type *(*)(void))0)))
    268 # define CHECKED_PTR_OF(type, p) \
    269     ((void*) (1 ? p : (type*)0))
    270 # define CHECKED_PPTR_OF(type, p) \
    271     ((void**) (1 ? p : (type**)0))
    272 
    273 # define TYPEDEF_D2I_OF(type) typedef type *d2i_of_##type(type **,const unsigned char **,long)
    274 # define TYPEDEF_I2D_OF(type) typedef int i2d_of_##type(type *,unsigned char **)
    275 # define TYPEDEF_D2I2D_OF(type) TYPEDEF_D2I_OF(type); TYPEDEF_I2D_OF(type)
    276 
    277 TYPEDEF_D2I2D_OF(void);
    278 
    279 /*-
    280  * The following macros and typedefs allow an ASN1_ITEM
    281  * to be embedded in a structure and referenced. Since
    282  * the ASN1_ITEM pointers need to be globally accessible
    283  * (possibly from shared libraries) they may exist in
    284  * different forms. On platforms that support it the
    285  * ASN1_ITEM structure itself will be globally exported.
    286  * Other platforms will export a function that returns
    287  * an ASN1_ITEM pointer.
    288  *
    289  * To handle both cases transparently the macros below
    290  * should be used instead of hard coding an ASN1_ITEM
    291  * pointer in a structure.
    292  *
    293  * The structure will look like this:
    294  *
    295  * typedef struct SOMETHING_st {
    296  *      ...
    297  *      ASN1_ITEM_EXP *iptr;
    298  *      ...
    299  * } SOMETHING;
    300  *
    301  * It would be initialised as e.g.:
    302  *
    303  * SOMETHING somevar = {...,ASN1_ITEM_ref(X509),...};
    304  *
    305  * and the actual pointer extracted with:
    306  *
    307  * const ASN1_ITEM *it = ASN1_ITEM_ptr(somevar.iptr);
    308  *
    309  * Finally an ASN1_ITEM pointer can be extracted from an
    310  * appropriate reference with: ASN1_ITEM_rptr(X509). This
    311  * would be used when a function takes an ASN1_ITEM * argument.
    312  *
    313  */
    314 
    315 # ifndef OPENSSL_EXPORT_VAR_AS_FUNCTION
    316 
    317 /* ASN1_ITEM pointer exported type */
    318 typedef const ASN1_ITEM ASN1_ITEM_EXP;
    319 
    320 /* Macro to obtain ASN1_ITEM pointer from exported type */
    321 #  define ASN1_ITEM_ptr(iptr) (iptr)
    322 
    323 /* Macro to include ASN1_ITEM pointer from base type */
    324 #  define ASN1_ITEM_ref(iptr) (&(iptr##_it))
    325 
    326 #  define ASN1_ITEM_rptr(ref) (&(ref##_it))
    327 
    328 #  define DECLARE_ASN1_ITEM(name) \
    329         OPENSSL_EXTERN const ASN1_ITEM name##_it;
    330 
    331 # else
    332 
    333 /*
    334  * Platforms that can't easily handle shared global variables are declared as
    335  * functions returning ASN1_ITEM pointers.
    336  */
    337 
    338 /* ASN1_ITEM pointer exported type */
    339 typedef const ASN1_ITEM *ASN1_ITEM_EXP (void);
    340 
    341 /* Macro to obtain ASN1_ITEM pointer from exported type */
    342 #  define ASN1_ITEM_ptr(iptr) (iptr())
    343 
    344 /* Macro to include ASN1_ITEM pointer from base type */
    345 #  define ASN1_ITEM_ref(iptr) (iptr##_it)
    346 
    347 #  define ASN1_ITEM_rptr(ref) (ref##_it())
    348 
    349 #  define DECLARE_ASN1_ITEM(name) \
    350         const ASN1_ITEM * name##_it(void);
    351 
    352 # endif
    353 
    354 /* Parameters used by ASN1_STRING_print_ex() */
    355 
    356 /*
    357  * These determine which characters to escape: RFC2253 special characters,
    358  * control characters and MSB set characters
    359  */
    360 
    361 # define ASN1_STRFLGS_ESC_2253           1
    362 # define ASN1_STRFLGS_ESC_CTRL           2
    363 # define ASN1_STRFLGS_ESC_MSB            4
    364 
    365 /*
    366  * This flag determines how we do escaping: normally RC2253 backslash only,
    367  * set this to use backslash and quote.
    368  */
    369 
    370 # define ASN1_STRFLGS_ESC_QUOTE          8
    371 
    372 /* These three flags are internal use only. */
    373 
    374 /* Character is a valid PrintableString character */
    375 # define CHARTYPE_PRINTABLESTRING        0x10
    376 /* Character needs escaping if it is the first character */
    377 # define CHARTYPE_FIRST_ESC_2253         0x20
    378 /* Character needs escaping if it is the last character */
    379 # define CHARTYPE_LAST_ESC_2253          0x40
    380 
    381 /*
    382  * NB the internal flags are safely reused below by flags handled at the top
    383  * level.
    384  */
    385 
    386 /*
    387  * If this is set we convert all character strings to UTF8 first
    388  */
    389 
    390 # define ASN1_STRFLGS_UTF8_CONVERT       0x10
    391 
    392 /*
    393  * If this is set we don't attempt to interpret content: just assume all
    394  * strings are 1 byte per character. This will produce some pretty odd
    395  * looking output!
    396  */
    397 
    398 # define ASN1_STRFLGS_IGNORE_TYPE        0x20
    399 
    400 /* If this is set we include the string type in the output */
    401 # define ASN1_STRFLGS_SHOW_TYPE          0x40
    402 
    403 /*
    404  * This determines which strings to display and which to 'dump' (hex dump of
    405  * content octets or DER encoding). We can only dump non character strings or
    406  * everything. If we don't dump 'unknown' they are interpreted as character
    407  * strings with 1 octet per character and are subject to the usual escaping
    408  * options.
    409  */
    410 
    411 # define ASN1_STRFLGS_DUMP_ALL           0x80
    412 # define ASN1_STRFLGS_DUMP_UNKNOWN       0x100
    413 
    414 /*
    415  * These determine what 'dumping' does, we can dump the content octets or the
    416  * DER encoding: both use the RFC2253 #XXXXX notation.
    417  */
    418 
    419 # define ASN1_STRFLGS_DUMP_DER           0x200
    420 
    421 /*
    422  * This flag specifies that RC2254 escaping shall be performed.
    423  */
    424 #define ASN1_STRFLGS_ESC_2254           0x400
    425 
    426 /*
    427  * All the string flags consistent with RFC2253, escaping control characters
    428  * isn't essential in RFC2253 but it is advisable anyway.
    429  */
    430 
    431 # define ASN1_STRFLGS_RFC2253    (ASN1_STRFLGS_ESC_2253 | \
    432                                 ASN1_STRFLGS_ESC_CTRL | \
    433                                 ASN1_STRFLGS_ESC_MSB | \
    434                                 ASN1_STRFLGS_UTF8_CONVERT | \
    435                                 ASN1_STRFLGS_DUMP_UNKNOWN | \
    436                                 ASN1_STRFLGS_DUMP_DER)
    437 
    438 DEFINE_STACK_OF(ASN1_INTEGER)
    439 
    440 DEFINE_STACK_OF(ASN1_GENERALSTRING)
    441 
    442 DEFINE_STACK_OF(ASN1_UTF8STRING)
    443 
    444 typedef struct asn1_type_st {
    445     int type;
    446     union {
    447         char *ptr;
    448         ASN1_BOOLEAN boolean;
    449         ASN1_STRING *asn1_string;
    450         ASN1_OBJECT *object;
    451         ASN1_INTEGER *integer;
    452         ASN1_ENUMERATED *enumerated;
    453         ASN1_BIT_STRING *bit_string;
    454         ASN1_OCTET_STRING *octet_string;
    455         ASN1_PRINTABLESTRING *printablestring;
    456         ASN1_T61STRING *t61string;
    457         ASN1_IA5STRING *ia5string;
    458         ASN1_GENERALSTRING *generalstring;
    459         ASN1_BMPSTRING *bmpstring;
    460         ASN1_UNIVERSALSTRING *universalstring;
    461         ASN1_UTCTIME *utctime;
    462         ASN1_GENERALIZEDTIME *generalizedtime;
    463         ASN1_VISIBLESTRING *visiblestring;
    464         ASN1_UTF8STRING *utf8string;
    465         /*
    466          * set and sequence are left complete and still contain the set or
    467          * sequence bytes
    468          */
    469         ASN1_STRING *set;
    470         ASN1_STRING *sequence;
    471         ASN1_VALUE *asn1_value;
    472     } value;
    473 } ASN1_TYPE;
    474 
    475 DEFINE_STACK_OF(ASN1_TYPE)
    476 
    477 typedef STACK_OF(ASN1_TYPE) ASN1_SEQUENCE_ANY;
    478 
    479 DECLARE_ASN1_ENCODE_FUNCTIONS_const(ASN1_SEQUENCE_ANY, ASN1_SEQUENCE_ANY)
    480 DECLARE_ASN1_ENCODE_FUNCTIONS_const(ASN1_SEQUENCE_ANY, ASN1_SET_ANY)
    481 
    482 /* This is used to contain a list of bit names */
    483 typedef struct BIT_STRING_BITNAME_st {
    484     int bitnum;
    485     const char *lname;
    486     const char *sname;
    487 } BIT_STRING_BITNAME;
    488 
    489 # define B_ASN1_TIME \
    490                         B_ASN1_UTCTIME | \
    491                         B_ASN1_GENERALIZEDTIME
    492 
    493 # define B_ASN1_PRINTABLE \
    494                         B_ASN1_NUMERICSTRING| \
    495                         B_ASN1_PRINTABLESTRING| \
    496                         B_ASN1_T61STRING| \
    497                         B_ASN1_IA5STRING| \
    498                         B_ASN1_BIT_STRING| \
    499                         B_ASN1_UNIVERSALSTRING|\
    500                         B_ASN1_BMPSTRING|\
    501                         B_ASN1_UTF8STRING|\
    502                         B_ASN1_SEQUENCE|\
    503                         B_ASN1_UNKNOWN
    504 
    505 # define B_ASN1_DIRECTORYSTRING \
    506                         B_ASN1_PRINTABLESTRING| \
    507                         B_ASN1_TELETEXSTRING|\
    508                         B_ASN1_BMPSTRING|\
    509                         B_ASN1_UNIVERSALSTRING|\
    510                         B_ASN1_UTF8STRING
    511 
    512 # define B_ASN1_DISPLAYTEXT \
    513                         B_ASN1_IA5STRING| \
    514                         B_ASN1_VISIBLESTRING| \
    515                         B_ASN1_BMPSTRING|\
    516                         B_ASN1_UTF8STRING
    517 
    518 DECLARE_ASN1_FUNCTIONS_fname(ASN1_TYPE, ASN1_ANY, ASN1_TYPE)
    519 
    520 int ASN1_TYPE_get(const ASN1_TYPE *a);
    521 void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value);
    522 int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value);
    523 int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b);
    524 
    525 ASN1_TYPE *ASN1_TYPE_pack_sequence(const ASN1_ITEM *it, void *s, ASN1_TYPE **t);
    526 void *ASN1_TYPE_unpack_sequence(const ASN1_ITEM *it, const ASN1_TYPE *t);
    527 
    528 ASN1_OBJECT *ASN1_OBJECT_new(void);
    529 void ASN1_OBJECT_free(ASN1_OBJECT *a);
    530 int i2d_ASN1_OBJECT(const ASN1_OBJECT *a, unsigned char **pp);
    531 ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
    532                              long length);
    533 
    534 DECLARE_ASN1_ITEM(ASN1_OBJECT)
    535 
    536 DEFINE_STACK_OF(ASN1_OBJECT)
    537 
    538 ASN1_STRING *ASN1_STRING_new(void);
    539 void ASN1_STRING_free(ASN1_STRING *a);
    540 void ASN1_STRING_clear_free(ASN1_STRING *a);
    541 int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str);
    542 ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *a);
    543 ASN1_STRING *ASN1_STRING_type_new(int type);
    544 int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b);
    545   /*
    546    * Since this is used to store all sorts of things, via macros, for now,
    547    * make its data void *
    548    */
    549 int ASN1_STRING_set(ASN1_STRING *str, const void *data, int len);
    550 void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len);
    551 int ASN1_STRING_length(const ASN1_STRING *x);
    552 void ASN1_STRING_length_set(ASN1_STRING *x, int n);
    553 int ASN1_STRING_type(const ASN1_STRING *x);
    554 DEPRECATEDIN_1_1_0(unsigned char *ASN1_STRING_data(ASN1_STRING *x))
    555 const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x);
    556 
    557 DECLARE_ASN1_FUNCTIONS(ASN1_BIT_STRING)
    558 int ASN1_BIT_STRING_set(ASN1_BIT_STRING *a, unsigned char *d, int length);
    559 int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value);
    560 int ASN1_BIT_STRING_get_bit(const ASN1_BIT_STRING *a, int n);
    561 int ASN1_BIT_STRING_check(const ASN1_BIT_STRING *a,
    562                           const unsigned char *flags, int flags_len);
    563 
    564 int ASN1_BIT_STRING_name_print(BIO *out, ASN1_BIT_STRING *bs,
    565                                BIT_STRING_BITNAME *tbl, int indent);
    566 int ASN1_BIT_STRING_num_asc(const char *name, BIT_STRING_BITNAME *tbl);
    567 int ASN1_BIT_STRING_set_asc(ASN1_BIT_STRING *bs, const char *name, int value,
    568                             BIT_STRING_BITNAME *tbl);
    569 
    570 DECLARE_ASN1_FUNCTIONS(ASN1_INTEGER)
    571 ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
    572                                 long length);
    573 ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x);
    574 int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y);
    575 
    576 DECLARE_ASN1_FUNCTIONS(ASN1_ENUMERATED)
    577 
    578 int ASN1_UTCTIME_check(const ASN1_UTCTIME *a);
    579 ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t);
    580 ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
    581                                int offset_day, long offset_sec);
    582 int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str);
    583 int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t);
    584 
    585 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *a);
    586 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
    587                                                time_t t);
    588 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
    589                                                time_t t, int offset_day,
    590                                                long offset_sec);
    591 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str);
    592 
    593 int ASN1_TIME_diff(int *pday, int *psec,
    594                    const ASN1_TIME *from, const ASN1_TIME *to);
    595 
    596 DECLARE_ASN1_FUNCTIONS(ASN1_OCTET_STRING)
    597 ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *a);
    598 int ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a,
    599                           const ASN1_OCTET_STRING *b);
    600 int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *str, const unsigned char *data,
    601                           int len);
    602 
    603 DECLARE_ASN1_FUNCTIONS(ASN1_VISIBLESTRING)
    604 DECLARE_ASN1_FUNCTIONS(ASN1_UNIVERSALSTRING)
    605 DECLARE_ASN1_FUNCTIONS(ASN1_UTF8STRING)
    606 DECLARE_ASN1_FUNCTIONS(ASN1_NULL)
    607 DECLARE_ASN1_FUNCTIONS(ASN1_BMPSTRING)
    608 
    609 int UTF8_getc(const unsigned char *str, int len, unsigned long *val);
    610 int UTF8_putc(unsigned char *str, int len, unsigned long value);
    611 
    612 DECLARE_ASN1_FUNCTIONS_name(ASN1_STRING, ASN1_PRINTABLE)
    613 
    614 DECLARE_ASN1_FUNCTIONS_name(ASN1_STRING, DIRECTORYSTRING)
    615 DECLARE_ASN1_FUNCTIONS_name(ASN1_STRING, DISPLAYTEXT)
    616 DECLARE_ASN1_FUNCTIONS(ASN1_PRINTABLESTRING)
    617 DECLARE_ASN1_FUNCTIONS(ASN1_T61STRING)
    618 DECLARE_ASN1_FUNCTIONS(ASN1_IA5STRING)
    619 DECLARE_ASN1_FUNCTIONS(ASN1_GENERALSTRING)
    620 DECLARE_ASN1_FUNCTIONS(ASN1_UTCTIME)
    621 DECLARE_ASN1_FUNCTIONS(ASN1_GENERALIZEDTIME)
    622 DECLARE_ASN1_FUNCTIONS(ASN1_TIME)
    623 
    624 DECLARE_ASN1_ITEM(ASN1_OCTET_STRING_NDEF)
    625 
    626 ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t);
    627 ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t,
    628                          int offset_day, long offset_sec);
    629 int ASN1_TIME_check(const ASN1_TIME *t);
    630 ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(const ASN1_TIME *t,
    631                                                    ASN1_GENERALIZEDTIME **out);
    632 int ASN1_TIME_set_string(ASN1_TIME *s, const char *str);
    633 int ASN1_TIME_set_string_X509(ASN1_TIME *s, const char *str);
    634 int ASN1_TIME_to_tm(const ASN1_TIME *s, struct tm *tm);
    635 int ASN1_TIME_normalize(ASN1_TIME *s);
    636 int ASN1_TIME_cmp_time_t(const ASN1_TIME *s, time_t t);
    637 int ASN1_TIME_compare(const ASN1_TIME *a, const ASN1_TIME *b);
    638 
    639 int i2a_ASN1_INTEGER(BIO *bp, const ASN1_INTEGER *a);
    640 int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size);
    641 int i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a);
    642 int a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size);
    643 int i2a_ASN1_OBJECT(BIO *bp, const ASN1_OBJECT *a);
    644 int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size);
    645 int i2a_ASN1_STRING(BIO *bp, const ASN1_STRING *a, int type);
    646 int i2t_ASN1_OBJECT(char *buf, int buf_len, const ASN1_OBJECT *a);
    647 
    648 int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num);
    649 ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
    650                                 const char *sn, const char *ln);
    651 
    652 int ASN1_INTEGER_get_int64(int64_t *pr, const ASN1_INTEGER *a);
    653 int ASN1_INTEGER_set_int64(ASN1_INTEGER *a, int64_t r);
    654 int ASN1_INTEGER_get_uint64(uint64_t *pr, const ASN1_INTEGER *a);
    655 int ASN1_INTEGER_set_uint64(ASN1_INTEGER *a, uint64_t r);
    656 
    657 int ASN1_INTEGER_set(ASN1_INTEGER *a, long v);
    658 long ASN1_INTEGER_get(const ASN1_INTEGER *a);
    659 ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai);
    660 BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn);
    661 
    662 int ASN1_ENUMERATED_get_int64(int64_t *pr, const ASN1_ENUMERATED *a);
    663 int ASN1_ENUMERATED_set_int64(ASN1_ENUMERATED *a, int64_t r);
    664 
    665 
    666 int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v);
    667 long ASN1_ENUMERATED_get(const ASN1_ENUMERATED *a);
    668 ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(const BIGNUM *bn, ASN1_ENUMERATED *ai);
    669 BIGNUM *ASN1_ENUMERATED_to_BN(const ASN1_ENUMERATED *ai, BIGNUM *bn);
    670 
    671 /* General */
    672 /* given a string, return the correct type, max is the maximum length */
    673 int ASN1_PRINTABLE_type(const unsigned char *s, int max);
    674 
    675 unsigned long ASN1_tag2bit(int tag);
    676 
    677 /* SPECIALS */
    678 int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
    679                     int *pclass, long omax);
    680 int ASN1_check_infinite_end(unsigned char **p, long len);
    681 int ASN1_const_check_infinite_end(const unsigned char **p, long len);
    682 void ASN1_put_object(unsigned char **pp, int constructed, int length,
    683                      int tag, int xclass);
    684 int ASN1_put_eoc(unsigned char **pp);
    685 int ASN1_object_size(int constructed, int length, int tag);
    686 
    687 /* Used to implement other functions */
    688 void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x);
    689 
    690 # define ASN1_dup_of(type,i2d,d2i,x) \
    691     ((type*)ASN1_dup(CHECKED_I2D_OF(type, i2d), \
    692                      CHECKED_D2I_OF(type, d2i), \
    693                      CHECKED_PTR_OF(type, x)))
    694 
    695 # define ASN1_dup_of_const(type,i2d,d2i,x) \
    696     ((type*)ASN1_dup(CHECKED_I2D_OF(const type, i2d), \
    697                      CHECKED_D2I_OF(type, d2i), \
    698                      CHECKED_PTR_OF(const type, x)))
    699 
    700 void *ASN1_item_dup(const ASN1_ITEM *it, void *x);
    701 
    702 /* ASN1 alloc/free macros for when a type is only used internally */
    703 
    704 # define M_ASN1_new_of(type) (type *)ASN1_item_new(ASN1_ITEM_rptr(type))
    705 # define M_ASN1_free_of(x, type) \
    706                 ASN1_item_free(CHECKED_PTR_OF(type, x), ASN1_ITEM_rptr(type))
    707 
    708 # ifndef OPENSSL_NO_STDIO
    709 void *ASN1_d2i_fp(void *(*xnew) (void), d2i_of_void *d2i, FILE *in, void **x);
    710 
    711 #  define ASN1_d2i_fp_of(type,xnew,d2i,in,x) \
    712     ((type*)ASN1_d2i_fp(CHECKED_NEW_OF(type, xnew), \
    713                         CHECKED_D2I_OF(type, d2i), \
    714                         in, \
    715                         CHECKED_PPTR_OF(type, x)))
    716 
    717 void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x);
    718 int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x);
    719 
    720 #  define ASN1_i2d_fp_of(type,i2d,out,x) \
    721     (ASN1_i2d_fp(CHECKED_I2D_OF(type, i2d), \
    722                  out, \
    723                  CHECKED_PTR_OF(type, x)))
    724 
    725 #  define ASN1_i2d_fp_of_const(type,i2d,out,x) \
    726     (ASN1_i2d_fp(CHECKED_I2D_OF(const type, i2d), \
    727                  out, \
    728                  CHECKED_PTR_OF(const type, x)))
    729 
    730 int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x);
    731 int ASN1_STRING_print_ex_fp(FILE *fp, const ASN1_STRING *str, unsigned long flags);
    732 # endif
    733 
    734 int ASN1_STRING_to_UTF8(unsigned char **out, const ASN1_STRING *in);
    735 
    736 void *ASN1_d2i_bio(void *(*xnew) (void), d2i_of_void *d2i, BIO *in, void **x);
    737 
    738 #  define ASN1_d2i_bio_of(type,xnew,d2i,in,x) \
    739     ((type*)ASN1_d2i_bio( CHECKED_NEW_OF(type, xnew), \
    740                           CHECKED_D2I_OF(type, d2i), \
    741                           in, \
    742                           CHECKED_PPTR_OF(type, x)))
    743 
    744 void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x);
    745 int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x);
    746 
    747 #  define ASN1_i2d_bio_of(type,i2d,out,x) \
    748     (ASN1_i2d_bio(CHECKED_I2D_OF(type, i2d), \
    749                   out, \
    750                   CHECKED_PTR_OF(type, x)))
    751 
    752 #  define ASN1_i2d_bio_of_const(type,i2d,out,x) \
    753     (ASN1_i2d_bio(CHECKED_I2D_OF(const type, i2d), \
    754                   out, \
    755                   CHECKED_PTR_OF(const type, x)))
    756 
    757 int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x);
    758 int ASN1_UTCTIME_print(BIO *fp, const ASN1_UTCTIME *a);
    759 int ASN1_GENERALIZEDTIME_print(BIO *fp, const ASN1_GENERALIZEDTIME *a);
    760 int ASN1_TIME_print(BIO *fp, const ASN1_TIME *a);
    761 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v);
    762 int ASN1_STRING_print_ex(BIO *out, const ASN1_STRING *str, unsigned long flags);
    763 int ASN1_buf_print(BIO *bp, const unsigned char *buf, size_t buflen, int off);
    764 int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
    765                   unsigned char *buf, int off);
    766 int ASN1_parse(BIO *bp, const unsigned char *pp, long len, int indent);
    767 int ASN1_parse_dump(BIO *bp, const unsigned char *pp, long len, int indent,
    768                     int dump);
    769 const char *ASN1_tag2str(int tag);
    770 
    771 /* Used to load and write Netscape format cert */
    772 
    773 int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s);
    774 
    775 int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, unsigned char *data, int len);
    776 int ASN1_TYPE_get_octetstring(const ASN1_TYPE *a, unsigned char *data, int max_len);
    777 int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num,
    778                                   unsigned char *data, int len);
    779 int ASN1_TYPE_get_int_octetstring(const ASN1_TYPE *a, long *num,
    780                                   unsigned char *data, int max_len);
    781 
    782 void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it);
    783 
    784 ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it,
    785                             ASN1_OCTET_STRING **oct);
    786 
    787 void ASN1_STRING_set_default_mask(unsigned long mask);
    788 int ASN1_STRING_set_default_mask_asc(const char *p);
    789 unsigned long ASN1_STRING_get_default_mask(void);
    790 int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len,
    791                        int inform, unsigned long mask);
    792 int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
    793                         int inform, unsigned long mask,
    794                         long minsize, long maxsize);
    795 
    796 ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out,
    797                                     const unsigned char *in, int inlen,
    798                                     int inform, int nid);
    799 ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid);
    800 int ASN1_STRING_TABLE_add(int, long, long, unsigned long, unsigned long);
    801 void ASN1_STRING_TABLE_cleanup(void);
    802 
    803 /* ASN1 template functions */
    804 
    805 /* Old API compatible functions */
    806 ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it);
    807 void ASN1_item_free(ASN1_VALUE *val, const ASN1_ITEM *it);
    808 ASN1_VALUE *ASN1_item_d2i(ASN1_VALUE **val, const unsigned char **in,
    809                           long len, const ASN1_ITEM *it);
    810 int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it);
    811 int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out,
    812                        const ASN1_ITEM *it);
    813 
    814 void ASN1_add_oid_module(void);
    815 void ASN1_add_stable_module(void);
    816 
    817 ASN1_TYPE *ASN1_generate_nconf(const char *str, CONF *nconf);
    818 ASN1_TYPE *ASN1_generate_v3(const char *str, X509V3_CTX *cnf);
    819 int ASN1_str2mask(const char *str, unsigned long *pmask);
    820 
    821 /* ASN1 Print flags */
    822 
    823 /* Indicate missing OPTIONAL fields */
    824 # define ASN1_PCTX_FLAGS_SHOW_ABSENT             0x001
    825 /* Mark start and end of SEQUENCE */
    826 # define ASN1_PCTX_FLAGS_SHOW_SEQUENCE           0x002
    827 /* Mark start and end of SEQUENCE/SET OF */
    828 # define ASN1_PCTX_FLAGS_SHOW_SSOF               0x004
    829 /* Show the ASN1 type of primitives */
    830 # define ASN1_PCTX_FLAGS_SHOW_TYPE               0x008
    831 /* Don't show ASN1 type of ANY */
    832 # define ASN1_PCTX_FLAGS_NO_ANY_TYPE             0x010
    833 /* Don't show ASN1 type of MSTRINGs */
    834 # define ASN1_PCTX_FLAGS_NO_MSTRING_TYPE         0x020
    835 /* Don't show field names in SEQUENCE */
    836 # define ASN1_PCTX_FLAGS_NO_FIELD_NAME           0x040
    837 /* Show structure names of each SEQUENCE field */
    838 # define ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME  0x080
    839 /* Don't show structure name even at top level */
    840 # define ASN1_PCTX_FLAGS_NO_STRUCT_NAME          0x100
    841 
    842 int ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent,
    843                     const ASN1_ITEM *it, const ASN1_PCTX *pctx);
    844 ASN1_PCTX *ASN1_PCTX_new(void);
    845 void ASN1_PCTX_free(ASN1_PCTX *p);
    846 unsigned long ASN1_PCTX_get_flags(const ASN1_PCTX *p);
    847 void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags);
    848 unsigned long ASN1_PCTX_get_nm_flags(const ASN1_PCTX *p);
    849 void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags);
    850 unsigned long ASN1_PCTX_get_cert_flags(const ASN1_PCTX *p);
    851 void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags);
    852 unsigned long ASN1_PCTX_get_oid_flags(const ASN1_PCTX *p);
    853 void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags);
    854 unsigned long ASN1_PCTX_get_str_flags(const ASN1_PCTX *p);
    855 void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags);
    856 
    857 ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx));
    858 void ASN1_SCTX_free(ASN1_SCTX *p);
    859 const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p);
    860 const ASN1_TEMPLATE *ASN1_SCTX_get_template(ASN1_SCTX *p);
    861 unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p);
    862 void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data);
    863 void *ASN1_SCTX_get_app_data(ASN1_SCTX *p);
    864 
    865 const BIO_METHOD *BIO_f_asn1(void);
    866 
    867 BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it);
    868 
    869 int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
    870                         const ASN1_ITEM *it);
    871 int PEM_write_bio_ASN1_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
    872                               const char *hdr, const ASN1_ITEM *it);
    873 int SMIME_write_ASN1(BIO *bio, ASN1_VALUE *val, BIO *data, int flags,
    874                      int ctype_nid, int econt_nid,
    875                      STACK_OF(X509_ALGOR) *mdalgs, const ASN1_ITEM *it);
    876 ASN1_VALUE *SMIME_read_ASN1(BIO *bio, BIO **bcont, const ASN1_ITEM *it);
    877 int SMIME_crlf_copy(BIO *in, BIO *out, int flags);
    878 int SMIME_text(BIO *in, BIO *out);
    879 
    880 const ASN1_ITEM *ASN1_ITEM_lookup(const char *name);
    881 const ASN1_ITEM *ASN1_ITEM_get(size_t i);
    882 
    883 # ifdef  __cplusplus
    884 }
    885 # endif
    886 #endif
    887