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