2 * Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include "internal/cryptlib.h"
11 #include <openssl/x509.h>
12 #include <openssl/x509v3.h>
13 #include "internal/x509_int.h"
17 static int policy_data_cmp(const X509_POLICY_DATA
*const *a
,
18 const X509_POLICY_DATA
*const *b
);
19 static int policy_cache_set_int(long *out
, ASN1_INTEGER
*value
);
22 * Set cache entry according to CertificatePolicies extension. Note: this
23 * destroys the passed CERTIFICATEPOLICIES structure.
26 static int policy_cache_create(X509
*x
,
27 CERTIFICATEPOLICIES
*policies
, int crit
)
30 X509_POLICY_CACHE
*cache
= x
->policy_cache
;
31 X509_POLICY_DATA
*data
= NULL
;
34 if ((num
= sk_POLICYINFO_num(policies
)) <= 0)
36 cache
->data
= sk_X509_POLICY_DATA_new(policy_data_cmp
);
37 if (cache
->data
== NULL
) {
38 X509V3err(X509V3_F_POLICY_CACHE_CREATE
, ERR_R_MALLOC_FAILURE
);
41 for (i
= 0; i
< num
; i
++) {
42 policy
= sk_POLICYINFO_value(policies
, i
);
43 data
= policy_data_new(policy
, NULL
, crit
);
45 X509V3err(X509V3_F_POLICY_CACHE_CREATE
, ERR_R_MALLOC_FAILURE
);
49 * Duplicate policy OIDs are illegal: reject if matches found.
51 if (OBJ_obj2nid(data
->valid_policy
) == NID_any_policy
) {
52 if (cache
->anyPolicy
) {
56 cache
->anyPolicy
= data
;
57 } else if (sk_X509_POLICY_DATA_find(cache
->data
, data
) >=0 ) {
60 } else if (!sk_X509_POLICY_DATA_push(cache
->data
, data
)) {
61 X509V3err(X509V3_F_POLICY_CACHE_CREATE
, ERR_R_MALLOC_FAILURE
);
70 x
->ex_flags
|= EXFLAG_INVALID_POLICY
;
71 policy_data_free(data
);
73 sk_POLICYINFO_pop_free(policies
, POLICYINFO_free
);
75 sk_X509_POLICY_DATA_pop_free(cache
->data
, policy_data_free
);
81 static int policy_cache_new(X509
*x
)
83 X509_POLICY_CACHE
*cache
;
84 ASN1_INTEGER
*ext_any
= NULL
;
85 POLICY_CONSTRAINTS
*ext_pcons
= NULL
;
86 CERTIFICATEPOLICIES
*ext_cpols
= NULL
;
87 POLICY_MAPPINGS
*ext_pmaps
= NULL
;
90 if (x
->policy_cache
!= NULL
)
92 cache
= OPENSSL_malloc(sizeof(*cache
));
94 X509V3err(X509V3_F_POLICY_CACHE_NEW
, ERR_R_MALLOC_FAILURE
);
97 cache
->anyPolicy
= NULL
;
100 cache
->explicit_skip
= -1;
101 cache
->map_skip
= -1;
103 x
->policy_cache
= cache
;
106 * Handle requireExplicitPolicy *first*. Need to process this even if we
107 * don't have any policies.
109 ext_pcons
= X509_get_ext_d2i(x
, NID_policy_constraints
, &i
, NULL
);
115 if (!ext_pcons
->requireExplicitPolicy
116 && !ext_pcons
->inhibitPolicyMapping
)
118 if (!policy_cache_set_int(&cache
->explicit_skip
,
119 ext_pcons
->requireExplicitPolicy
))
121 if (!policy_cache_set_int(&cache
->map_skip
,
122 ext_pcons
->inhibitPolicyMapping
))
126 /* Process CertificatePolicies */
128 ext_cpols
= X509_get_ext_d2i(x
, NID_certificate_policies
, &i
, NULL
);
130 * If no CertificatePolicies extension or problem decoding then there is
131 * no point continuing because the valid policies will be NULL.
134 /* If not absent some problem with extension */
140 i
= policy_cache_create(x
, ext_cpols
, i
);
142 /* NB: ext_cpols freed by policy_cache_set_policies */
147 ext_pmaps
= X509_get_ext_d2i(x
, NID_policy_mappings
, &i
, NULL
);
150 /* If not absent some problem with extension */
154 i
= policy_cache_set_mapping(x
, ext_pmaps
);
159 ext_any
= X509_get_ext_d2i(x
, NID_inhibit_any_policy
, &i
, NULL
);
164 } else if (!policy_cache_set_int(&cache
->any_skip
, ext_any
))
169 x
->ex_flags
|= EXFLAG_INVALID_POLICY
;
172 POLICY_CONSTRAINTS_free(ext_pcons
);
173 ASN1_INTEGER_free(ext_any
);
178 void policy_cache_free(X509_POLICY_CACHE
*cache
)
182 policy_data_free(cache
->anyPolicy
);
183 sk_X509_POLICY_DATA_pop_free(cache
->data
, policy_data_free
);
187 const X509_POLICY_CACHE
*policy_cache_set(X509
*x
)
190 if (x
->policy_cache
== NULL
) {
191 CRYPTO_THREAD_write_lock(x
->lock
);
193 CRYPTO_THREAD_unlock(x
->lock
);
196 return x
->policy_cache
;
200 X509_POLICY_DATA
*policy_cache_find_data(const X509_POLICY_CACHE
*cache
,
201 const ASN1_OBJECT
*id
)
204 X509_POLICY_DATA tmp
;
205 tmp
.valid_policy
= (ASN1_OBJECT
*)id
;
206 idx
= sk_X509_POLICY_DATA_find(cache
->data
, &tmp
);
207 return sk_X509_POLICY_DATA_value(cache
->data
, idx
);
210 static int policy_data_cmp(const X509_POLICY_DATA
*const *a
,
211 const X509_POLICY_DATA
*const *b
)
213 return OBJ_cmp((*a
)->valid_policy
, (*b
)->valid_policy
);
216 static int policy_cache_set_int(long *out
, ASN1_INTEGER
*value
)
220 if (value
->type
== V_ASN1_NEG_INTEGER
)
222 *out
= ASN1_INTEGER_get(value
);