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 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 = 18 (const OSSL_PROPERTY_DEFINITION *)compare; 19 20 return key - defn->name_idx; 21 } 22 23 const OSSL_PROPERTY_DEFINITION * 24 ossl_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 37 OSSL_PROPERTY_TYPE ossl_property_get_type(const OSSL_PROPERTY_DEFINITION *prop) 38 { 39 return prop->type; 40 } 41 42 const 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 52 int64_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 */ 62 int ossl_property_has_optional(const OSSL_PROPERTY_LIST *query) 63 { 64 return query->has_optional ? 1 : 0; 65 } 66 67 int 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