1/*
2 * Copyright 2005-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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
12typedef const ASN1_VALUE const_ASN1_VALUE;
13SKM_DEFINE_STACK_OF(const_ASN1_VALUE, const ASN1_VALUE, ASN1_VALUE)
14
15int ossl_asn1_time_to_tm(struct tm *tm, const ASN1_TIME *d);
16int ossl_asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d);
17
18/* ASN1 scan context structure */
19
20struct asn1_sctx_st {
21    /* The ASN1_ITEM associated with this field */
22    const ASN1_ITEM *it;
23    /* If ASN1_TEMPLATE associated with this field */
24    const ASN1_TEMPLATE *tt;
25    /* Various flags associated with field and context */
26    unsigned long flags;
27    /* If SEQUENCE OF or SET OF, field index */
28    int skidx;
29    /* ASN1 depth of field */
30    int depth;
31    /* Structure and field name */
32    const char *sname, *fname;
33    /* If a primitive type the type of underlying field */
34    int prim_type;
35    /* The field value itself */
36    ASN1_VALUE **field;
37    /* Callback to pass information to */
38    int (*scan_cb) (ASN1_SCTX *ctx);
39    /* Context specific application data */
40    void *app_data;
41} /* ASN1_SCTX */ ;
42
43typedef struct mime_param_st MIME_PARAM;
44DEFINE_STACK_OF(MIME_PARAM)
45typedef struct mime_header_st MIME_HEADER;
46DEFINE_STACK_OF(MIME_HEADER)
47
48void ossl_asn1_string_embed_free(ASN1_STRING *a, int embed);
49
50int ossl_asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it);
51int ossl_asn1_get_choice_selector_const(const ASN1_VALUE **pval,
52                                        const ASN1_ITEM *it);
53int ossl_asn1_set_choice_selector(ASN1_VALUE **pval, int value,
54                                  const ASN1_ITEM *it);
55
56ASN1_VALUE **ossl_asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
57const ASN1_VALUE **ossl_asn1_get_const_field_ptr(const ASN1_VALUE **pval,
58                                                 const ASN1_TEMPLATE *tt);
59
60const ASN1_TEMPLATE *ossl_asn1_do_adb(const ASN1_VALUE *val,
61                                      const ASN1_TEMPLATE *tt,
62                                      int nullerr);
63
64int ossl_asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it);
65
66void ossl_asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it);
67void ossl_asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
68int ossl_asn1_enc_restore(int *len, unsigned char **out, const ASN1_VALUE **pval,
69                          const ASN1_ITEM *it);
70int ossl_asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen,
71                       const ASN1_ITEM *it);
72
73void ossl_asn1_item_embed_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed);
74void ossl_asn1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it, int embed);
75void ossl_asn1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
76
77ASN1_OBJECT *ossl_c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
78                                  long length);
79int ossl_i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp);
80ASN1_BIT_STRING *ossl_c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
81                                          const unsigned char **pp, long length);
82int ossl_i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp);
83ASN1_INTEGER *ossl_c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
84                                    long length);
85
86/* Internal functions used by x_int64.c */
87int ossl_c2i_uint64_int(uint64_t *ret, int *neg, const unsigned char **pp,
88                        long len);
89int ossl_i2c_uint64_int(unsigned char *p, uint64_t r, int neg);
90
91ASN1_TIME *ossl_asn1_time_from_tm(ASN1_TIME *s, struct tm *ts, int type);
92
93int ossl_asn1_item_ex_new_intern(ASN1_VALUE **pval, const ASN1_ITEM *it,
94                                 OSSL_LIB_CTX *libctx, const char *propq);
95