xref: /openssl/crypto/x509/pcy_data.c (revision e077455e)
1 /*
2  * Copyright 2004-2021 The OpenSSL Project Authors. All Rights Reserved.
3  *
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
8  */
9 
10 #include "internal/cryptlib.h"
11 #include <openssl/x509.h>
12 #include <openssl/x509v3.h>
13 
14 #include "pcy_local.h"
15 
16 /* Policy Node routines */
17 
ossl_policy_data_free(X509_POLICY_DATA * data)18 void ossl_policy_data_free(X509_POLICY_DATA *data)
19 {
20     if (data == NULL)
21         return;
22     ASN1_OBJECT_free(data->valid_policy);
23     /* Don't free qualifiers if shared */
24     if (!(data->flags & POLICY_DATA_FLAG_SHARED_QUALIFIERS))
25         sk_POLICYQUALINFO_pop_free(data->qualifier_set, POLICYQUALINFO_free);
26     sk_ASN1_OBJECT_pop_free(data->expected_policy_set, ASN1_OBJECT_free);
27     OPENSSL_free(data);
28 }
29 
30 /*
31  * Create a data based on an existing policy. If 'id' is NULL use the OID in
32  * the policy, otherwise use 'id'. This behaviour covers the two types of
33  * data in RFC3280: data with from a CertificatePolicies extension and
34  * additional data with just the qualifiers of anyPolicy and ID from another
35  * source.
36  */
37 
ossl_policy_data_new(POLICYINFO * policy,const ASN1_OBJECT * cid,int crit)38 X509_POLICY_DATA *ossl_policy_data_new(POLICYINFO *policy,
39                                        const ASN1_OBJECT *cid, int crit)
40 {
41     X509_POLICY_DATA *ret;
42     ASN1_OBJECT *id;
43 
44     if (policy == NULL && cid == NULL)
45         return NULL;
46     if (cid) {
47         id = OBJ_dup(cid);
48         if (id == NULL)
49             return NULL;
50     } else
51         id = NULL;
52     ret = OPENSSL_zalloc(sizeof(*ret));
53     if (ret == NULL) {
54         ASN1_OBJECT_free(id);
55         return NULL;
56     }
57     ret->expected_policy_set = sk_ASN1_OBJECT_new_null();
58     if (ret->expected_policy_set == NULL) {
59         OPENSSL_free(ret);
60         ASN1_OBJECT_free(id);
61         ERR_raise(ERR_LIB_X509V3, ERR_R_CRYPTO_LIB);
62         return NULL;
63     }
64 
65     if (crit)
66         ret->flags = POLICY_DATA_FLAG_CRITICAL;
67 
68     if (id)
69         ret->valid_policy = id;
70     else {
71         ret->valid_policy = policy->policyid;
72         policy->policyid = NULL;
73     }
74 
75     if (policy) {
76         ret->qualifier_set = policy->qualifiers;
77         policy->qualifiers = NULL;
78     }
79 
80     return ret;
81 }
82