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Properties are a sequence of comma separated name=value pairs. A name without a corresponding value is assumed to be a Boolean and have the true value 'yes'. Values are either strings or numbers. Strings can be quoted either _"_ or _'_ or unquoted (with restrictions). There are no escape characters inside strings. Number are either decimal digits or '0x' followed by hexidecimal digits. Numbers are represented internally as signed sixty four bit values. Queries on properties are a sequence comma separated conditional tests. These take the form of name=value (equality test), name!=value (inequality test) or name (Boolean test for truth). Queries can be parsed, compared against a definition or merged pairwise. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8224)
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*
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* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/crypto.h>
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#include "internal/property.h"
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typedef struct ossl_property_list_st OSSL_PROPERTY_LIST;
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typedef int OSSL_PROPERTY_IDX;
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/* Initialisation and finalisation for subsystem */
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int ossl_method_store_init(void);
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void ossl_method_store_cleanup(void);
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/* Property string functions */
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OSSL_PROPERTY_IDX ossl_property_name(const char *s, int create);
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OSSL_PROPERTY_IDX ossl_property_value(const char *s, int create);
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int ossl_property_string_init(void);
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void ossl_property_string_cleanup(void);
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/* Property list functions */
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int ossl_property_parse_init(void);
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void ossl_property_free(OSSL_PROPERTY_LIST *p);
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int ossl_property_match(const OSSL_PROPERTY_LIST *query,
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const OSSL_PROPERTY_LIST *defn);
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OSSL_PROPERTY_LIST *ossl_property_merge(const OSSL_PROPERTY_LIST *a,
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const OSSL_PROPERTY_LIST *b);
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/* Property definition functions */
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OSSL_PROPERTY_LIST *ossl_parse_property(const char *s);
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/* Property query functions */
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OSSL_PROPERTY_LIST *ossl_parse_query(const char *s);
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/* Property definition cache functions */
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int ossl_prop_defn_init(void);
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void ossl_prop_defn_cleanup(void);
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OSSL_PROPERTY_LIST *ossl_prop_defn_get(const char *prop);
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int ossl_prop_defn_set(const char *prop, OSSL_PROPERTY_LIST *pl);
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/* Property cache lock / unlock */
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int ossl_property_write_lock(OSSL_METHOD_STORE *);
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int ossl_property_read_lock(OSSL_METHOD_STORE *);
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int ossl_property_unlock(OSSL_METHOD_STORE *);
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