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#include "crypto/x509.h"
14
15#include "pcy_local.h"
16
17/*
18 * Set policy mapping entries in cache. Note: this modifies the passed
19 * POLICY_MAPPINGS structure
20 */
21
22int ossl_policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps)
23{
24    POLICY_MAPPING *map;
25    X509_POLICY_DATA *data;
26    X509_POLICY_CACHE *cache = x->policy_cache;
27    int i;
28    int ret = 0;
29    if (sk_POLICY_MAPPING_num(maps) == 0) {
30        ret = -1;
31        goto bad_mapping;
32    }
33    for (i = 0; i < sk_POLICY_MAPPING_num(maps); i++) {
34        map = sk_POLICY_MAPPING_value(maps, i);
35        /* Reject if map to or from anyPolicy */
36        if ((OBJ_obj2nid(map->subjectDomainPolicy) == NID_any_policy)
37            || (OBJ_obj2nid(map->issuerDomainPolicy) == NID_any_policy)) {
38            ret = -1;
39            goto bad_mapping;
40        }
41
42        /* Attempt to find matching policy data */
43        data = ossl_policy_cache_find_data(cache, map->issuerDomainPolicy);
44        /* If we don't have anyPolicy can't map */
45        if (data == NULL && !cache->anyPolicy)
46            continue;
47
48        /* Create a NODE from anyPolicy */
49        if (data == NULL) {
50            data = ossl_policy_data_new(NULL, map->issuerDomainPolicy,
51                                        cache->anyPolicy->flags
52                                        & POLICY_DATA_FLAG_CRITICAL);
53            if (data == NULL)
54                goto bad_mapping;
55            data->qualifier_set = cache->anyPolicy->qualifier_set;
56            /*
57             * map->issuerDomainPolicy = NULL;
58             */
59            data->flags |= POLICY_DATA_FLAG_MAPPED_ANY;
60            data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS;
61            if (!sk_X509_POLICY_DATA_push(cache->data, data)) {
62                ossl_policy_data_free(data);
63                goto bad_mapping;
64            }
65        } else
66            data->flags |= POLICY_DATA_FLAG_MAPPED;
67        if (!sk_ASN1_OBJECT_push(data->expected_policy_set,
68                                 map->subjectDomainPolicy))
69            goto bad_mapping;
70        map->subjectDomainPolicy = NULL;
71
72    }
73
74    ret = 1;
75 bad_mapping:
76    sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free);
77    return ret;
78
79}
80