1 /*
2  * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
3  * Copyright (c) 2019, Oracle and/or its affiliates.  All rights reserved.
4  *
5  * Licensed under the Apache License 2.0 (the "License").  You may not use
6  * this file except in compliance with the License.  You can obtain a copy
7  * in the file LICENSE in the source distribution or at
8  * https://www.openssl.org/source/license.html
9  */
10 
11 #include <openssl/crypto.h>
12 #include "internal/property.h"
13 
14 typedef int OSSL_PROPERTY_IDX;
15 
16 typedef enum {
17     OSSL_PROPERTY_OPER_EQ, OSSL_PROPERTY_OPER_NE, OSSL_PROPERTY_OVERRIDE
18 } OSSL_PROPERTY_OPER;
19 
20 struct ossl_property_definition_st {
21     OSSL_PROPERTY_IDX name_idx;
22     OSSL_PROPERTY_TYPE type;
23     OSSL_PROPERTY_OPER oper;
24     unsigned int optional : 1;
25     union {
26         int64_t             int_val;     /* Signed integer */
27         OSSL_PROPERTY_IDX   str_val;     /* String */
28     } v;
29 };
30 
31 struct ossl_property_list_st {
32     int num_properties;
33     unsigned int has_optional : 1;
34     OSSL_PROPERTY_DEFINITION properties[1];
35 };
36 
37 #define OSSL_PROPERTY_TRUE      1
38 #define OSSL_PROPERTY_FALSE     2
39 
40 /* Property string functions */
41 OSSL_PROPERTY_IDX ossl_property_name(OSSL_LIB_CTX *ctx, const char *s,
42                                      int create);
43 const char *ossl_property_name_str(OSSL_LIB_CTX *ctx, OSSL_PROPERTY_IDX idx);
44 OSSL_PROPERTY_IDX ossl_property_value(OSSL_LIB_CTX *ctx, const char *s,
45                                       int create);
46 const char *ossl_property_value_str(OSSL_LIB_CTX *ctx, OSSL_PROPERTY_IDX idx);
47 
48 /* Property list functions */
49 void ossl_property_free(OSSL_PROPERTY_LIST *p);
50 int ossl_property_has_optional(const OSSL_PROPERTY_LIST *query);
51 
52 /* Property definition cache functions */
53 OSSL_PROPERTY_LIST *ossl_prop_defn_get(OSSL_LIB_CTX *ctx, const char *prop);
54 int ossl_prop_defn_set(OSSL_LIB_CTX *ctx, const char *prop,
55                        OSSL_PROPERTY_LIST **pl);
56