2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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).
60 #include <openssl/x509.h>
61 #include <openssl/x509v3.h>
65 static int policy_data_cmp(const X509_POLICY_DATA * const *a,
66 const X509_POLICY_DATA * const *b);
67 static int policy_cache_set_int(long *out, ASN1_INTEGER *value);
69 /* Set cache entry according to CertificatePolicies extension.
70 * Note: this destroys the passed CERTIFICATEPOLICIES structure.
73 static int policy_cache_create(X509 *x,
74 CERTIFICATEPOLICIES *policies, int crit)
78 X509_POLICY_CACHE *cache = x->policy_cache;
79 X509_POLICY_DATA *data = NULL;
81 if (sk_POLICYINFO_num(policies) == 0)
83 cache->data = sk_X509_POLICY_DATA_new(policy_data_cmp);
86 for (i = 0; i < sk_POLICYINFO_num(policies); i++)
88 policy = sk_POLICYINFO_value(policies, i);
89 data = policy_data_new(policy, NULL, crit);
92 /* Duplicate policy OIDs are illegal: reject if matches
95 if (OBJ_obj2nid(data->valid_policy) == NID_any_policy)
102 cache->anyPolicy = data;
104 else if (sk_X509_POLICY_DATA_find(cache->data, data) != -1)
109 else if (!sk_X509_POLICY_DATA_push(cache->data, data))
116 x->ex_flags |= EXFLAG_INVALID_POLICY;
118 policy_data_free(data);
119 sk_POLICYINFO_pop_free(policies, POLICYINFO_free);
122 sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
129 static int policy_cache_new(X509 *x)
131 X509_POLICY_CACHE *cache;
132 ASN1_INTEGER *ext_any = NULL;
133 POLICY_CONSTRAINTS *ext_pcons = NULL;
134 CERTIFICATEPOLICIES *ext_cpols = NULL;
135 POLICY_MAPPINGS *ext_pmaps = NULL;
137 cache = OPENSSL_malloc(sizeof(X509_POLICY_CACHE));
140 cache->anyPolicy = NULL;
142 cache->any_skip = -1;
143 cache->explicit_skip = -1;
144 cache->map_skip = -1;
146 x->policy_cache = cache;
148 /* Handle requireExplicitPolicy *first*. Need to process this
149 * even if we don't have any policies.
151 ext_pcons = X509_get_ext_d2i(x, NID_policy_constraints, &i, NULL);
160 if (!ext_pcons->requireExplicitPolicy
161 && !ext_pcons->inhibitPolicyMapping)
163 if (!policy_cache_set_int(&cache->explicit_skip,
164 ext_pcons->requireExplicitPolicy))
166 if (!policy_cache_set_int(&cache->map_skip,
167 ext_pcons->inhibitPolicyMapping))
171 /* Process CertificatePolicies */
173 ext_cpols = X509_get_ext_d2i(x, NID_certificate_policies, &i, NULL);
174 /* If no CertificatePolicies extension or problem decoding then
175 * there is no point continuing because the valid policies will be
180 /* If not absent some problem with extension */
186 i = policy_cache_create(x, ext_cpols, i);
188 /* NB: ext_cpols freed by policy_cache_set_policies */
193 ext_pmaps = X509_get_ext_d2i(x, NID_policy_mappings, &i, NULL);
197 /* If not absent some problem with extension */
203 i = policy_cache_set_mapping(x, ext_pmaps);
208 ext_any = X509_get_ext_d2i(x, NID_inhibit_any_policy, &i, NULL);
215 else if (!policy_cache_set_int(&cache->any_skip, ext_any))
221 x->ex_flags |= EXFLAG_INVALID_POLICY;
225 POLICY_CONSTRAINTS_free(ext_pcons);
228 ASN1_INTEGER_free(ext_any);
235 void policy_cache_free(X509_POLICY_CACHE *cache)
239 if (cache->anyPolicy)
240 policy_data_free(cache->anyPolicy);
242 sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
246 const X509_POLICY_CACHE *policy_cache_set(X509 *x)
249 if (x->policy_cache == NULL)
251 CRYPTO_w_lock(CRYPTO_LOCK_X509);
253 CRYPTO_w_unlock(CRYPTO_LOCK_X509);
256 return x->policy_cache;
260 X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
261 const ASN1_OBJECT *id)
264 X509_POLICY_DATA tmp;
265 tmp.valid_policy = (ASN1_OBJECT *)id;
266 idx = sk_X509_POLICY_DATA_find(cache->data, &tmp);
269 return sk_X509_POLICY_DATA_value(cache->data, idx);
272 static int policy_data_cmp(const X509_POLICY_DATA * const *a,
273 const X509_POLICY_DATA * const *b)
275 return OBJ_cmp((*a)->valid_policy, (*b)->valid_policy);
278 static int policy_cache_set_int(long *out, ASN1_INTEGER *value)
282 if (value->type == V_ASN1_NEG_INTEGER)
284 *out = ASN1_INTEGER_get(value);