Merge branch 'vendor/GREP'
[dragonfly.git] / contrib / hostapd / src / tls / x509v3.h
1 /*
2  * X.509v3 certificate parsing and processing
3  * Copyright (c) 2006, Jouni Malinen <j@w1.fi>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  * Alternatively, this software may be distributed under the terms of BSD
10  * license.
11  *
12  * See README and COPYING for more details.
13  */
14
15 #ifndef X509V3_H
16 #define X509V3_H
17
18 #include "asn1.h"
19
20 struct x509_algorithm_identifier {
21         struct asn1_oid oid;
22 };
23
24 struct x509_name {
25         char *cn; /* commonName */
26         char *c; /* countryName */
27         char *l; /* localityName */
28         char *st; /* stateOrProvinceName */
29         char *o; /* organizationName */
30         char *ou; /* organizationalUnitName */
31         char *email; /* emailAddress */
32 };
33
34 struct x509_certificate {
35         struct x509_certificate *next;
36         enum { X509_CERT_V1 = 0, X509_CERT_V2 = 1, X509_CERT_V3 = 2 } version;
37         unsigned long serial_number;
38         struct x509_algorithm_identifier signature;
39         struct x509_name issuer;
40         struct x509_name subject;
41         os_time_t not_before;
42         os_time_t not_after;
43         struct x509_algorithm_identifier public_key_alg;
44         u8 *public_key;
45         size_t public_key_len;
46         struct x509_algorithm_identifier signature_alg;
47         u8 *sign_value;
48         size_t sign_value_len;
49
50         /* Extensions */
51         unsigned int extensions_present;
52 #define X509_EXT_BASIC_CONSTRAINTS              (1 << 0)
53 #define X509_EXT_PATH_LEN_CONSTRAINT            (1 << 1)
54 #define X509_EXT_KEY_USAGE                      (1 << 2)
55
56         /* BasicConstraints */
57         int ca; /* cA */
58         unsigned long path_len_constraint; /* pathLenConstraint */
59
60         /* KeyUsage */
61         unsigned long key_usage;
62 #define X509_KEY_USAGE_DIGITAL_SIGNATURE        (1 << 0)
63 #define X509_KEY_USAGE_NON_REPUDIATION          (1 << 1)
64 #define X509_KEY_USAGE_KEY_ENCIPHERMENT         (1 << 2)
65 #define X509_KEY_USAGE_DATA_ENCIPHERMENT        (1 << 3)
66 #define X509_KEY_USAGE_KEY_AGREEMENT            (1 << 4)
67 #define X509_KEY_USAGE_KEY_CERT_SIGN            (1 << 5)
68 #define X509_KEY_USAGE_CRL_SIGN                 (1 << 6)
69 #define X509_KEY_USAGE_ENCIPHER_ONLY            (1 << 7)
70 #define X509_KEY_USAGE_DECIPHER_ONLY            (1 << 8)
71
72         /*
73          * The DER format certificate follows struct x509_certificate. These
74          * pointers point to that buffer.
75          */
76         const u8 *cert_start;
77         size_t cert_len;
78         const u8 *tbs_cert_start;
79         size_t tbs_cert_len;
80 };
81
82 enum {
83         X509_VALIDATE_OK,
84         X509_VALIDATE_BAD_CERTIFICATE,
85         X509_VALIDATE_UNSUPPORTED_CERTIFICATE,
86         X509_VALIDATE_CERTIFICATE_REVOKED,
87         X509_VALIDATE_CERTIFICATE_EXPIRED,
88         X509_VALIDATE_CERTIFICATE_UNKNOWN,
89         X509_VALIDATE_UNKNOWN_CA
90 };
91
92 #ifdef CONFIG_INTERNAL_X509
93
94 void x509_certificate_free(struct x509_certificate *cert);
95 struct x509_certificate * x509_certificate_parse(const u8 *buf, size_t len);
96 void x509_name_string(struct x509_name *name, char *buf, size_t len);
97 int x509_name_compare(struct x509_name *a, struct x509_name *b);
98 void x509_certificate_chain_free(struct x509_certificate *cert);
99 int x509_certificate_check_signature(struct x509_certificate *issuer,
100                                      struct x509_certificate *cert);
101 int x509_certificate_chain_validate(struct x509_certificate *trusted,
102                                     struct x509_certificate *chain,
103                                     int *reason);
104 struct x509_certificate *
105 x509_certificate_get_subject(struct x509_certificate *chain,
106                              struct x509_name *name);
107 int x509_certificate_self_signed(struct x509_certificate *cert);
108
109 #else /* CONFIG_INTERNAL_X509 */
110
111 static inline void x509_certificate_free(struct x509_certificate *cert)
112 {
113 }
114
115 static inline struct x509_certificate *
116 x509_certificate_parse(const u8 *buf, size_t len)
117 {
118         return NULL;
119 }
120
121 static inline void x509_name_string(struct x509_name *name, char *buf,
122                                     size_t len)
123 {
124         if (len)
125                 buf[0] = '\0';
126 }
127
128 static inline void x509_certificate_chain_free(struct x509_certificate *cert)
129 {
130 }
131
132 static inline int
133 x509_certificate_chain_validate(struct x509_certificate *trusted,
134                                 struct x509_certificate *chain,
135                                 int *reason)
136 {
137         return -1;
138 }
139
140 static inline struct x509_certificate *
141 x509_certificate_get_subject(struct x509_certificate *chain,
142                              struct x509_name *name)
143 {
144         return NULL;
145 }
146
147 static inline int x509_certificate_self_signed(struct x509_certificate *cert)
148 {
149         return -1;
150 }
151
152 #endif /* CONFIG_INTERNAL_X509 */
153
154 #endif /* X509V3_H */