1/*
2 * Copyright 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/propertyerr.h"
11#include "internal/property.h"
12#include "property_local.h"
13
14static int property_idx_cmp(const void *keyp, const void *compare)
15{
16    OSSL_PROPERTY_IDX key = *(const OSSL_PROPERTY_IDX *)keyp;
17    const OSSL_PROPERTY_DEFINITION *defn =
18            (const OSSL_PROPERTY_DEFINITION *)compare;
19
20    return key - defn->name_idx;
21}
22
23const OSSL_PROPERTY_DEFINITION *
24ossl_property_find_property(const OSSL_PROPERTY_LIST *list,
25                            OSSL_LIB_CTX *libctx, const char *name)
26{
27    OSSL_PROPERTY_IDX name_idx;
28
29    if (list == NULL || name == NULL
30        || (name_idx = ossl_property_name(libctx, name, 0)) == 0)
31        return NULL;
32
33    return ossl_bsearch(&name_idx, list->properties, list->num_properties,
34                        sizeof(*list->properties), &property_idx_cmp, 0);
35}
36
37OSSL_PROPERTY_TYPE ossl_property_get_type(const OSSL_PROPERTY_DEFINITION *prop)
38{
39    return prop->type;
40}
41
42const char *ossl_property_get_string_value(OSSL_LIB_CTX *libctx,
43                                           const OSSL_PROPERTY_DEFINITION *prop)
44{
45    const char *value = NULL;
46
47    if (prop != NULL && prop->type == OSSL_PROPERTY_TYPE_STRING)
48        value = ossl_property_value_str(libctx, prop->v.str_val);
49    return value;
50}
51
52int64_t ossl_property_get_number_value(const OSSL_PROPERTY_DEFINITION *prop)
53{
54    int64_t value = 0;
55
56    if (prop != NULL && prop->type == OSSL_PROPERTY_TYPE_NUMBER)
57        value = prop->v.int_val;
58    return value;
59}
60
61/* Does a property query have any optional clauses */
62int ossl_property_has_optional(const OSSL_PROPERTY_LIST *query)
63{
64    return query->has_optional ? 1 : 0;
65}
66
67int ossl_property_is_enabled(OSSL_LIB_CTX *ctx,  const char *property_name,
68                             const OSSL_PROPERTY_LIST *prop_list)
69{
70    const OSSL_PROPERTY_DEFINITION *prop;
71
72    prop = ossl_property_find_property(prop_list, ctx, property_name);
73    /* Do a separate check for override as it does not set type */
74    if (prop == NULL || prop->optional || prop->oper == OSSL_PROPERTY_OVERRIDE)
75        return 0;
76    return (prop->type == OSSL_PROPERTY_TYPE_STRING
77            && ((prop->oper == OSSL_PROPERTY_OPER_EQ
78                     && prop->v.str_val == OSSL_PROPERTY_TRUE)
79                 || (prop->oper == OSSL_PROPERTY_OPER_NE
80                     && prop->v.str_val != OSSL_PROPERTY_TRUE)));
81}
82
83