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      1 /*
      2  * Copyright 2005-2017 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 /* Internal ASN1 structures and functions: not for application use */
     11 
     12 int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d);
     13 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d);
     14 
     15 /* ASN1 scan context structure */
     16 
     17 struct asn1_sctx_st {
     18     /* The ASN1_ITEM associated with this field */
     19     const ASN1_ITEM *it;
     20     /* If ASN1_TEMPLATE associated with this field */
     21     const ASN1_TEMPLATE *tt;
     22     /* Various flags associated with field and context */
     23     unsigned long flags;
     24     /* If SEQUENCE OF or SET OF, field index */
     25     int skidx;
     26     /* ASN1 depth of field */
     27     int depth;
     28     /* Structure and field name */
     29     const char *sname, *fname;
     30     /* If a primitive type the type of underlying field */
     31     int prim_type;
     32     /* The field value itself */
     33     ASN1_VALUE **field;
     34     /* Callback to pass information to */
     35     int (*scan_cb) (ASN1_SCTX *ctx);
     36     /* Context specific application data */
     37     void *app_data;
     38 } /* ASN1_SCTX */ ;
     39 
     40 typedef struct mime_param_st MIME_PARAM;
     41 DEFINE_STACK_OF(MIME_PARAM)
     42 typedef struct mime_header_st MIME_HEADER;
     43 DEFINE_STACK_OF(MIME_HEADER)
     44 
     45 /* Month values for printing out times */
     46 extern const char *_asn1_mon[12];
     47 
     48 void asn1_string_embed_free(ASN1_STRING *a, int embed);
     49 
     50 int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it);
     51 int asn1_set_choice_selector(ASN1_VALUE **pval, int value,
     52                              const ASN1_ITEM *it);
     53 
     54 ASN1_VALUE **asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
     55 
     56 const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,
     57                                  int nullerr);
     58 
     59 int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it);
     60 
     61 void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it);
     62 void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
     63 int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval,
     64                      const ASN1_ITEM *it);
     65 int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen,
     66                   const ASN1_ITEM *it);
     67 
     68 void asn1_item_embed_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed);
     69 void asn1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed);
     70 void asn1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
     71 
     72 ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
     73                              long length);
     74 int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp);
     75 ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
     76                                      const unsigned char **pp, long length);
     77 int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp);
     78 ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
     79                                long length);
     80 
     81 /* Internal functions used by x_int64.c */
     82 int c2i_uint64_int(uint64_t *ret, int *neg, const unsigned char **pp, long len);
     83 int i2c_uint64_int(unsigned char *p, uint64_t r, int neg);
     84