hx_locl.h revision 1.1.1.3 1 /* $NetBSD: hx_locl.h,v 1.1.1.3 2017/01/28 20:46:48 christos Exp $ */
2
3 /*
4 * Copyright (c) 2004 - 2016 Kungliga Tekniska Hgskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * 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 the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 /* Id */
37
38 #include <config.h>
39
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <ctype.h>
43 #include <errno.h>
44 #ifdef HAVE_STRINGS_H
45 #include <strings.h>
46 #endif
47 #include <assert.h>
48 #include <stdarg.h>
49 #include <err.h>
50 #include <limits.h>
51
52 #include <krb5/roken.h>
53
54 #include <krb5/getarg.h>
55 #include <krb5/base64.h>
56 #include <krb5/hex.h>
57 #include <krb5/com_err.h>
58 #include <krb5/parse_units.h>
59 #include <krb5/parse_bytes.h>
60
61 #include <krb5/krb5-types.h>
62
63 #include <krb5/rfc2459_asn1.h>
64 #include <krb5/cms_asn1.h>
65 #include <krb5/pkcs8_asn1.h>
66 #include <krb5/pkcs9_asn1.h>
67 #include <krb5/pkcs12_asn1.h>
68 #include <krb5/ocsp_asn1.h>
69 #include <krb5/pkcs10_asn1.h>
70 #include <krb5/asn1_err.h>
71 #include <krb5/pkinit_asn1.h>
72
73 #include <krb5/der.h>
74
75 /*
76 * We use OpenSSL for EC, but to do this we need to disable cross-references
77 * between OpenSSL and hcrypto bn.h and such. Source files that use OpenSSL EC
78 * must define HEIM_NO_CRYPTO_HDRS before including this file.
79 */
80
81 #define HC_DEPRECATED_CRYPTO
82 #ifndef HEIM_NO_CRYPTO_HDRS
83 #include "crypto-headers.h"
84 #endif
85
86 struct hx509_keyset_ops;
87 struct hx509_collector;
88 struct hx509_generate_private_context;
89 typedef struct hx509_path hx509_path;
90
91 #include <krb5/heimbase.h>
92
93 #include <krb5/hx509.h>
94
95 typedef void (*_hx509_cert_release_func)(struct hx509_cert_data *, void *);
96
97
98 #include "sel.h"
99
100 #include <hx509-private.h>
101 #include <krb5/hx509_err.h>
102
103 struct hx509_peer_info {
104 hx509_cert cert;
105 AlgorithmIdentifier *val;
106 size_t len;
107 };
108
109 #define HX509_CERTS_FIND_SERIALNUMBER 1
110 #define HX509_CERTS_FIND_ISSUER 2
111 #define HX509_CERTS_FIND_SUBJECT 4
112 #define HX509_CERTS_FIND_ISSUER_KEY_ID 8
113 #define HX509_CERTS_FIND_SUBJECT_KEY_ID 16
114
115 struct hx509_name_data {
116 Name der_name;
117 };
118
119 struct hx509_path {
120 size_t len;
121 hx509_cert *val;
122 };
123
124 struct hx509_query_data {
125 int match;
126 #define HX509_QUERY_FIND_ISSUER_CERT 0x000001
127 #define HX509_QUERY_MATCH_SERIALNUMBER 0x000002
128 #define HX509_QUERY_MATCH_ISSUER_NAME 0x000004
129 #define HX509_QUERY_MATCH_SUBJECT_NAME 0x000008
130 #define HX509_QUERY_MATCH_SUBJECT_KEY_ID 0x000010
131 #define HX509_QUERY_MATCH_ISSUER_ID 0x000020
132 #define HX509_QUERY_PRIVATE_KEY 0x000040
133 #define HX509_QUERY_KU_ENCIPHERMENT 0x000080
134 #define HX509_QUERY_KU_DIGITALSIGNATURE 0x000100
135 #define HX509_QUERY_KU_KEYCERTSIGN 0x000200
136 #define HX509_QUERY_KU_CRLSIGN 0x000400
137 #define HX509_QUERY_KU_NONREPUDIATION 0x000800
138 #define HX509_QUERY_KU_KEYAGREEMENT 0x001000
139 #define HX509_QUERY_KU_DATAENCIPHERMENT 0x002000
140 #define HX509_QUERY_ANCHOR 0x004000
141 #define HX509_QUERY_MATCH_CERTIFICATE 0x008000
142 #define HX509_QUERY_MATCH_LOCAL_KEY_ID 0x010000
143 #define HX509_QUERY_NO_MATCH_PATH 0x020000
144 #define HX509_QUERY_MATCH_FRIENDLY_NAME 0x040000
145 #define HX509_QUERY_MATCH_FUNCTION 0x080000
146 #define HX509_QUERY_MATCH_KEY_HASH_SHA1 0x100000
147 #define HX509_QUERY_MATCH_TIME 0x200000
148 #define HX509_QUERY_MATCH_EKU 0x400000
149 #define HX509_QUERY_MATCH_EXPR 0x800000
150 #define HX509_QUERY_MASK 0xffffff
151 Certificate *subject;
152 Certificate *certificate;
153 heim_integer *serial;
154 heim_octet_string *subject_id;
155 heim_octet_string *local_key_id;
156 Name *issuer_name;
157 Name *subject_name;
158 hx509_path *path;
159 char *friendlyname;
160 int (*cmp_func)(hx509_context, hx509_cert, void *);
161 void *cmp_func_ctx;
162 heim_octet_string *keyhash_sha1;
163 time_t timenow;
164 heim_oid *eku;
165 struct hx_expr *expr;
166 };
167
168 struct hx509_keyset_ops {
169 const char *name;
170 int flags;
171 int (*init)(hx509_context, hx509_certs, void **,
172 int, const char *, hx509_lock);
173 int (*store)(hx509_context, hx509_certs, void *, int, hx509_lock);
174 int (*free)(hx509_certs, void *);
175 int (*add)(hx509_context, hx509_certs, void *, hx509_cert);
176 int (*query)(hx509_context, hx509_certs, void *,
177 const hx509_query *, hx509_cert *);
178 int (*iter_start)(hx509_context, hx509_certs, void *, void **);
179 int (*iter)(hx509_context, hx509_certs, void *, void *, hx509_cert *);
180 int (*iter_end)(hx509_context, hx509_certs, void *, void *);
181 int (*printinfo)(hx509_context, hx509_certs,
182 void *, int (*)(void *, const char *), void *);
183 int (*getkeys)(hx509_context, hx509_certs, void *, hx509_private_key **);
184 int (*addkey)(hx509_context, hx509_certs, void *, hx509_private_key);
185 };
186
187 struct _hx509_password {
188 size_t len;
189 char **val;
190 };
191
192 extern hx509_lock _hx509_empty_lock;
193
194 struct hx509_context_data {
195 struct hx509_keyset_ops **ks_ops;
196 int ks_num_ops;
197 int flags;
198 #define HX509_CTX_VERIFY_MISSING_OK 1
199 int ocsp_time_diff;
200 #define HX509_DEFAULT_OCSP_TIME_DIFF (5*60)
201 heim_error_t error;
202 struct et_list *et_list;
203 char *querystat;
204 hx509_certs default_trust_anchors;
205 };
206
207 /* _hx509_calculate_path flag field */
208 #define HX509_CALCULATE_PATH_NO_ANCHOR 1
209
210 /* environment */
211 struct hx509_env_data {
212 enum { env_string, env_list } type;
213 char *name;
214 struct hx509_env_data *next;
215 union {
216 char *string;
217 struct hx509_env_data *list;
218 } u;
219 };
220
221
222 extern const AlgorithmIdentifier * _hx509_crypto_default_sig_alg;
223 extern const AlgorithmIdentifier * _hx509_crypto_default_digest_alg;
224 extern const AlgorithmIdentifier * _hx509_crypto_default_secret_alg;
225
226 /*
227 * Private bits from crypto.c, so crypto-ec.c can also see them.
228 *
229 * This is part of the use-OpenSSL-for-EC hack.
230 */
231
232 struct hx509_crypto;
233
234 struct signature_alg;
235
236 struct hx509_generate_private_context {
237 const heim_oid *key_oid;
238 int isCA;
239 unsigned long num_bits;
240 };
241
242 struct hx509_private_key_ops {
243 const char *pemtype;
244 const heim_oid *key_oid;
245 int (*available)(const hx509_private_key,
246 const AlgorithmIdentifier *);
247 int (*get_spki)(hx509_context,
248 const hx509_private_key,
249 SubjectPublicKeyInfo *);
250 int (*export)(hx509_context context,
251 const hx509_private_key,
252 hx509_key_format_t,
253 heim_octet_string *);
254 int (*import)(hx509_context, const AlgorithmIdentifier *,
255 const void *, size_t, hx509_key_format_t,
256 hx509_private_key);
257 int (*generate_private_key)(hx509_context,
258 struct hx509_generate_private_context *,
259 hx509_private_key);
260 BIGNUM *(*get_internal)(hx509_context, hx509_private_key, const char *);
261 };
262
263 struct hx509_private_key {
264 unsigned int ref;
265 const struct signature_alg *md;
266 const heim_oid *signature_alg;
267 union {
268 RSA *rsa;
269 void *keydata;
270 void *ecdsa; /* EC_KEY */
271 } private_key;
272 hx509_private_key_ops *ops;
273 };
274
275 /*
276 *
277 */
278
279 struct signature_alg {
280 const char *name;
281 const heim_oid *sig_oid;
282 const AlgorithmIdentifier *sig_alg;
283 const heim_oid *key_oid;
284 const AlgorithmIdentifier *digest_alg;
285 int flags;
286 #define PROVIDE_CONF 0x1
287 #define REQUIRE_SIGNER 0x2
288 #define SELF_SIGNED_OK 0x4
289 #define WEAK_SIG_ALG 0x8
290
291 #define SIG_DIGEST 0x100
292 #define SIG_PUBLIC_SIG 0x200
293 #define SIG_SECRET 0x400
294
295 #define RA_RSA_USES_DIGEST_INFO 0x1000000
296
297 time_t best_before; /* refuse signature made after best before date */
298 const EVP_MD *(*evp_md)(void);
299 int (*verify_signature)(hx509_context context,
300 const struct signature_alg *,
301 const Certificate *,
302 const AlgorithmIdentifier *,
303 const heim_octet_string *,
304 const heim_octet_string *);
305 int (*create_signature)(hx509_context,
306 const struct signature_alg *,
307 const hx509_private_key,
308 const AlgorithmIdentifier *,
309 const heim_octet_string *,
310 AlgorithmIdentifier *,
311 heim_octet_string *);
312 int digest_size;
313 };
314
315 /*
316 * Configurable options
317 */
318
319 #ifdef __APPLE__
320 #define HX509_DEFAULT_ANCHORS "KEYCHAIN:system-anchors"
321 #endif
322