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1/* $OpenBSD: asn1_local.h,v 1.10 2024/03/02 09:10:42 tb Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 2006.
4 */
5/* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include "bytestring.h"
60
61__BEGIN_HIDDEN_DECLS
62
63/* Internal ASN1 structures and functions: not for application use */
64
65ASN1_TYPE *ASN1_TYPE_pack_sequence(const ASN1_ITEM *it, void *s, ASN1_TYPE **t);
66void *ASN1_TYPE_unpack_sequence(const ASN1_ITEM *it, const ASN1_TYPE *t);
67
68/* These are used internally in the ASN1_OBJECT to keep track of
69 * whether the names and data need to be free()ed */
70#define ASN1_OBJECT_FLAG_DYNAMIC 0x01 /* internal use */
71#define ASN1_OBJECT_FLAG_CRITICAL 0x02 /* critical x509v3 object id */
72#define ASN1_OBJECT_FLAG_DYNAMIC_STRINGS 0x04 /* internal use */
73#define ASN1_OBJECT_FLAG_DYNAMIC_DATA 0x08 /* internal use */
74struct asn1_object_st {
75 const char *sn, *ln;
76 int nid;
77 int length;
78 const unsigned char *data; /* data remains const after init */
79 int flags; /* Should we free this one */
80} /* ASN1_OBJECT */;
81
82/* ASN1 print context structure */
83
84struct asn1_pctx_st {
85 unsigned long flags;
86 unsigned long nm_flags;
87 unsigned long cert_flags;
88 unsigned long oid_flags;
89 unsigned long str_flags;
90} /* ASN1_PCTX */;
91
92int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it);
93int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it);
94
95ASN1_VALUE ** asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
96
97const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, int nullerr);
98
99int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it);
100
101void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it);
102void asn1_enc_cleanup(ASN1_VALUE **pval, const ASN1_ITEM *it);
103int asn1_enc_save(ASN1_VALUE **pval, CBS *cbs, const ASN1_ITEM *it);
104int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval, const ASN1_ITEM *it);
105
106int i2d_ASN1_BOOLEAN(int a, unsigned char **pp);
107int d2i_ASN1_BOOLEAN(int *a, const unsigned char **pp, long length);
108
109/*
110 * Unicode codepoint constants
111 */
112#define UNICODE_MAX 0x10FFFF
113#define UNICODE_SURROGATE_MIN 0x00D800
114#define UNICODE_SURROGATE_MAX 0x00DFFF
115
116#define UNICODE_IS_SURROGATE(x) \
117 ((x) >= UNICODE_SURROGATE_MIN && (x) <= UNICODE_SURROGATE_MAX)
118
119int UTF8_getc(const unsigned char *str, int len, unsigned long *val);
120int UTF8_putc(unsigned char *str, int len, unsigned long value);
121
122int asn1_d2i_read_bio(BIO *in, BUF_MEM **pb);
123
124int asn1_get_identifier_cbs(CBS *cbs, int der_mode, uint8_t *out_class,
125 int *out_constructed, uint32_t *out_tag_number);
126int asn1_get_length_cbs(CBS *cbs, int der_mode, int *out_indefinite,
127 size_t *out_length);
128int asn1_get_object_cbs(CBS *cbs, int der_mode, uint8_t *out_class,
129 int *out_constructed, uint32_t *out_tag_number, int *out_indefinite,
130 size_t *out_length);
131int asn1_get_primitive(CBS *cbs, int der_mode, uint32_t *out_tag_number,
132 CBS *out_content);
133
134int asn1_must_be_constructed(int tag);
135int asn1_must_be_primitive(int tag);
136int asn1_tag2charwidth(int tag);
137
138int asn1_abs_set_unused_bits(ASN1_BIT_STRING *abs, uint8_t unused_bits);
139int c2i_ASN1_BIT_STRING_cbs(ASN1_BIT_STRING **out_abs, CBS *cbs);
140
141int c2i_ASN1_ENUMERATED_cbs(ASN1_ENUMERATED **out_aenum, CBS *cbs);
142
143int asn1_aint_get_uint64(CBS *cbs, uint64_t *out_val);
144int asn1_aint_set_uint64(uint64_t val, uint8_t **out_data, int *out_len);
145int asn1_aint_get_int64(CBS *cbs, int negative, int64_t *out_val);
146int c2i_ASN1_INTEGER_cbs(ASN1_INTEGER **out_aint, CBS *cbs);
147
148int c2i_ASN1_OBJECT_cbs(ASN1_OBJECT **out_aobj, CBS *content);
149int i2t_ASN1_OBJECT_internal(const ASN1_OBJECT *aobj, char *buf, int buf_len,
150 int no_name);
151ASN1_OBJECT *t2i_ASN1_OBJECT_internal(const char *oid);
152
153int asn1_time_parse_cbs(const CBS *cbs, int is_gentime, struct tm *out_tm);
154
155ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
156 long length);
157int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp);
158ASN1_BIT_STRING *c2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a,
159 const unsigned char **pp, long length);
160int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp);
161ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
162 long length);
163int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, int64_t offset_sec);
164int OPENSSL_gmtime_diff(int *pday, int *psec, const struct tm *from,
165 const struct tm *to);
166int asn1_time_time_t_to_tm(const time_t *time, struct tm *out_tm);
167int asn1_time_tm_to_time_t(const struct tm *tm, time_t *out);
168
169int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it);
170
171const BIO_METHOD *BIO_f_asn1(void);
172
173BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it);
174
175int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
176 const ASN1_ITEM *it);
177int PEM_write_bio_ASN1_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
178 const char *hdr, const ASN1_ITEM *it);
179int SMIME_write_ASN1(BIO *bio, ASN1_VALUE *val, BIO *data, int flags,
180 int ctype_nid, int econt_nid, STACK_OF(X509_ALGOR) *mdalgs,
181 const ASN1_ITEM *it);
182ASN1_VALUE *SMIME_read_ASN1(BIO *bio, BIO **bcont, const ASN1_ITEM *it);
183
184int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
185void ASN1_primitive_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
186
187int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
188void ASN1_template_free(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
189
190int ASN1_time_parse(const char *_bytes, size_t _len, struct tm *_tm, int _mode);
191int ASN1_time_tm_cmp(struct tm *_tm1, struct tm *_tm2);
192
193__END_HIDDEN_DECLS
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