2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2004 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
59 #include "internal/cryptlib.h"
60 #include <openssl/x509.h>
61 #include <openssl/x509v3.h>
62 #include "internal/x509_int.h"
66 static int policy_data_cmp(const X509_POLICY_DATA *const *a,
67 const X509_POLICY_DATA *const *b);
68 static int policy_cache_set_int(long *out, ASN1_INTEGER *value);
71 * Set cache entry according to CertificatePolicies extension. Note: this
72 * destroys the passed CERTIFICATEPOLICIES structure.
75 static int policy_cache_create(X509 *x,
76 CERTIFICATEPOLICIES *policies, int crit)
80 X509_POLICY_CACHE *cache = x->policy_cache;
81 X509_POLICY_DATA *data = NULL;
83 if (sk_POLICYINFO_num(policies) == 0)
85 cache->data = sk_X509_POLICY_DATA_new(policy_data_cmp);
86 if (cache->data == NULL)
88 for (i = 0; i < sk_POLICYINFO_num(policies); i++) {
89 policy = sk_POLICYINFO_value(policies, i);
90 data = policy_data_new(policy, NULL, crit);
94 * Duplicate policy OIDs are illegal: reject if matches found.
96 if (OBJ_obj2nid(data->valid_policy) == NID_any_policy) {
97 if (cache->anyPolicy) {
101 cache->anyPolicy = data;
102 } else if (sk_X509_POLICY_DATA_find(cache->data, data) != -1) {
105 } else if (!sk_X509_POLICY_DATA_push(cache->data, data))
112 x->ex_flags |= EXFLAG_INVALID_POLICY;
113 policy_data_free(data);
114 sk_POLICYINFO_pop_free(policies, POLICYINFO_free);
116 sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
122 static int policy_cache_new(X509 *x)
124 X509_POLICY_CACHE *cache;
125 ASN1_INTEGER *ext_any = NULL;
126 POLICY_CONSTRAINTS *ext_pcons = NULL;
127 CERTIFICATEPOLICIES *ext_cpols = NULL;
128 POLICY_MAPPINGS *ext_pmaps = NULL;
130 cache = OPENSSL_malloc(sizeof(*cache));
133 cache->anyPolicy = NULL;
135 cache->any_skip = -1;
136 cache->explicit_skip = -1;
137 cache->map_skip = -1;
139 x->policy_cache = cache;
142 * Handle requireExplicitPolicy *first*. Need to process this even if we
143 * don't have any policies.
145 ext_pcons = X509_get_ext_d2i(x, NID_policy_constraints, &i, NULL);
151 if (!ext_pcons->requireExplicitPolicy
152 && !ext_pcons->inhibitPolicyMapping)
154 if (!policy_cache_set_int(&cache->explicit_skip,
155 ext_pcons->requireExplicitPolicy))
157 if (!policy_cache_set_int(&cache->map_skip,
158 ext_pcons->inhibitPolicyMapping))
162 /* Process CertificatePolicies */
164 ext_cpols = X509_get_ext_d2i(x, NID_certificate_policies, &i, NULL);
166 * If no CertificatePolicies extension or problem decoding then there is
167 * no point continuing because the valid policies will be NULL.
170 /* If not absent some problem with extension */
176 i = policy_cache_create(x, ext_cpols, i);
178 /* NB: ext_cpols freed by policy_cache_set_policies */
183 ext_pmaps = X509_get_ext_d2i(x, NID_policy_mappings, &i, NULL);
186 /* If not absent some problem with extension */
190 i = policy_cache_set_mapping(x, ext_pmaps);
195 ext_any = X509_get_ext_d2i(x, NID_inhibit_any_policy, &i, NULL);
200 } else if (!policy_cache_set_int(&cache->any_skip, ext_any))
205 x->ex_flags |= EXFLAG_INVALID_POLICY;
208 POLICY_CONSTRAINTS_free(ext_pcons);
209 ASN1_INTEGER_free(ext_any);
214 void policy_cache_free(X509_POLICY_CACHE *cache)
218 policy_data_free(cache->anyPolicy);
219 sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
223 const X509_POLICY_CACHE *policy_cache_set(X509 *x)
226 if (x->policy_cache == NULL) {
227 CRYPTO_w_lock(CRYPTO_LOCK_X509);
229 CRYPTO_w_unlock(CRYPTO_LOCK_X509);
232 return x->policy_cache;
236 X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
237 const ASN1_OBJECT *id)
240 X509_POLICY_DATA tmp;
241 tmp.valid_policy = (ASN1_OBJECT *)id;
242 idx = sk_X509_POLICY_DATA_find(cache->data, &tmp);
245 return sk_X509_POLICY_DATA_value(cache->data, idx);
248 static int policy_data_cmp(const X509_POLICY_DATA *const *a,
249 const X509_POLICY_DATA *const *b)
251 return OBJ_cmp((*a)->valid_policy, (*b)->valid_policy);
254 static int policy_cache_set_int(long *out, ASN1_INTEGER *value)
258 if (value->type == V_ASN1_NEG_INTEGER)
260 *out = ASN1_INTEGER_get(value);