xref: /third_party/curl/lib/vtls/x509asn1.h (revision 13498266) 
1#ifndef HEADER_CURL_X509ASN1_H
2#define HEADER_CURL_X509ASN1_H
3
4/***************************************************************************
5 *                                  _   _ ____  _
6 *  Project                     ___| | | |  _ \| |
7 *                             / __| | | | |_) | |
8 *                            | (__| |_| |  _ <| |___
9 *                             \___|\___/|_| \_\_____|
10 *
11 * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
12 *
13 * This software is licensed as described in the file COPYING, which
14 * you should have received as part of this distribution. The terms
15 * are also available at https://curl.se/docs/copyright.html.
16 *
17 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
18 * copies of the Software, and permit persons to whom the Software is
19 * furnished to do so, under the terms of the COPYING file.
20 *
21 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
22 * KIND, either express or implied.
23 *
24 * SPDX-License-Identifier: curl
25 *
26 ***************************************************************************/
27
28#include "curl_setup.h"
29
30#if defined(USE_GNUTLS) || defined(USE_WOLFSSL) || \
31  defined(USE_SCHANNEL) || defined(USE_SECTRANSP)
32
33#include "cfilters.h"
34#include "urldata.h"
35
36/*
37 * Types.
38 */
39
40/* ASN.1 parsed element. */
41struct Curl_asn1Element {
42  const char *header;         /* Pointer to header byte. */
43  const char *beg;            /* Pointer to element data. */
44  const char *end;            /* Pointer to 1st byte after element. */
45  unsigned char class;        /* ASN.1 element class. */
46  unsigned char tag;          /* ASN.1 element tag. */
47  bool          constructed;  /* Element is constructed. */
48};
49
50/* X509 certificate: RFC 5280. */
51struct Curl_X509certificate {
52  struct Curl_asn1Element certificate;
53  struct Curl_asn1Element version;
54  struct Curl_asn1Element serialNumber;
55  struct Curl_asn1Element signatureAlgorithm;
56  struct Curl_asn1Element signature;
57  struct Curl_asn1Element issuer;
58  struct Curl_asn1Element notBefore;
59  struct Curl_asn1Element notAfter;
60  struct Curl_asn1Element subject;
61  struct Curl_asn1Element subjectPublicKeyInfo;
62  struct Curl_asn1Element subjectPublicKeyAlgorithm;
63  struct Curl_asn1Element subjectPublicKey;
64  struct Curl_asn1Element issuerUniqueID;
65  struct Curl_asn1Element subjectUniqueID;
66  struct Curl_asn1Element extensions;
67};
68
69/*
70 * Prototypes.
71 */
72
73int Curl_parseX509(struct Curl_X509certificate *cert,
74                   const char *beg, const char *end);
75CURLcode Curl_extract_certinfo(struct Curl_easy *data, int certnum,
76                               const char *beg, const char *end);
77CURLcode Curl_verifyhost(struct Curl_cfilter *cf, struct Curl_easy *data,
78                         const char *beg, const char *end);
79#endif /* USE_GNUTLS or USE_WOLFSSL or USE_SCHANNEL or USE_SECTRANSP */
80#endif /* HEADER_CURL_X509ASN1_H */
81