154 lines
6.2 KiB
HTML
154 lines
6.2 KiB
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<?xml version="1.0" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>OSSL_SERIALIZER</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<link rev="made" href="mailto:root@localhost" />
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</head>
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<body style="background-color: white">
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<!-- INDEX BEGIN -->
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<div name="index">
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<p><a name="__index__"></a></p>
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<ul>
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<li><a href="#name">NAME</a></li>
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<li><a href="#synopsis">SYNOPSIS</a></li>
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<li><a href="#description">DESCRIPTION</a></li>
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<li><a href="#notes">NOTES</a></li>
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<li><a href="#return_values">RETURN VALUES</a></li>
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<li><a href="#see_also">SEE ALSO</a></li>
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<li><a href="#history">HISTORY</a></li>
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<li><a href="#copyright">COPYRIGHT</a></li>
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</ul>
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<hr name="index" />
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</div>
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<!-- INDEX END -->
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<p>
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</p>
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<hr />
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<h1><a name="name">NAME</a></h1>
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<p>OSSL_SERIALIZER,
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OSSL_SERIALIZER_fetch,
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OSSL_SERIALIZER_up_ref,
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OSSL_SERIALIZER_free,
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OSSL_SERIALIZER_provider,
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OSSL_SERIALIZER_properties,
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OSSL_SERIALIZER_is_a,
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OSSL_SERIALIZER_number,
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OSSL_SERIALIZER_do_all_provided,
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OSSL_SERIALIZER_names_do_all
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- Serializer method routines</p>
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<p>
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</p>
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<hr />
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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<pre>
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#include <openssl/serializer.h></pre>
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<pre>
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typedef struct ossl_serializer_st OSSL_SERIALIZER;</pre>
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<pre>
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OSSL_SERIALIZER *OSSL_SERIALIZER_fetch(OPENSSL_CTX *ctx, const char *name,
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const char *properties);
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int OSSL_SERIALIZER_up_ref(OSSL_SERIALIZER *serializer);
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void OSSL_SERIALIZER_free(OSSL_SERIALIZER *serializer);
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const OSSL_PROVIDER *OSSL_SERIALIZER_provider(const OSSL_SERIALIZER
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*serializer);
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const char *OSSL_SERIALIZER_properties(const OSSL_SERIALIZER *ser);
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int OSSL_SERIALIZER_is_a(const OSSL_SERIALIZER *serializer,
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const char *name);
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int OSSL_SERIALIZER_number(const OSSL_SERIALIZER *serializer);
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void OSSL_SERIALIZER_do_all_provided(OPENSSL_CTX *libctx,
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void (*fn)(OSSL_SERIALIZER *serializer,
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void *arg),
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void *arg);
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void OSSL_SERIALIZER_names_do_all(const OSSL_SERIALIZER *serializer,
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void (*fn)(const char *name, void *data),
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void *data);</pre>
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<p>
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</p>
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<hr />
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<h1><a name="description">DESCRIPTION</a></h1>
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<p><strong>OSSL_SERIALIZER</strong> is a method for serializers, which know how to
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serialize an object of some kind to a serialized form, such as PEM,
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DER, or even human readable text.</p>
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<p><code>OSSL_SERIALIZER_fetch()</code> looks for an algorithm within the provider that
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has been loaded into the <strong>OPENSSL_CTX</strong> given by <em>ctx</em>, having the
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name given by <em>name</em> and the properties given by <em>properties</em>.
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The <em>name</em> determines what type of object the fetched serializer
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method is expected to be able to serialize, and the properties are
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used to determine the expected output type.
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For known properties and the values they may have, please have a look
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in <em>provider-serializer(7)/Names and properties</em>.</p>
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<p><code>OSSL_SERIALIZER_up_ref()</code> increments the reference count for the given
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<em>serializer</em>.</p>
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<p><code>OSSL_SERIALIZER_free()</code> decrements the reference count for the given
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<em>serializer</em>, and when the count reaches zero, frees it.</p>
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<p><code>OSSL_SERIALIZER_provider()</code> returns the provider of the given
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<em>serializer</em>.</p>
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<p><code>OSSL_SERIALIZER_provider()</code> returns the property definition associated
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with the given <em>serializer</em>.</p>
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<p><code>OSSL_SERIALIZER_is_a()</code> checks if <em>serializer</em> is an implementation of an
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algorithm that's identifiable with <em>name</em>.</p>
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<p><code>OSSL_SERIALIZER_number()</code> returns the internal dynamic number assigned to
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the given <em>serializer</em>.</p>
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<p><code>OSSL_SERIALIZER_names_do_all()</code> traverses all names for the given
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<em>serializer</em>, and calls <em>fn</em> with each name and <em>data</em>.</p>
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<p><code>OSSL_SERIALIZER_do_all_provided()</code> traverses all serializer
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implementations by all activated providers in the library context
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<em>libctx</em>, and for each of the implementations, calls <em>fn</em> with the
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implementation method and <em>data</em> as arguments.</p>
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<p>
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</p>
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<hr />
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<h1><a name="notes">NOTES</a></h1>
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<p><code>OSSL_SERIALIZER_fetch()</code> may be called implicitly by other fetching
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functions, using the same library context and properties.
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Any other API that uses keys will typically do this.</p>
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<p>
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</p>
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<hr />
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<h1><a name="return_values">RETURN VALUES</a></h1>
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<p><code>OSSL_SERIALIZER_fetch()</code> returns a pointer to the key management
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implementation represented by an OSSL_SERIALIZER object, or NULL on
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error.</p>
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<p><code>OSSL_SERIALIZER_up_ref()</code> returns 1 on success, or 0 on error.</p>
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<p><code>OSSL_SERIALIZER_free()</code> doesn't return any value.</p>
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<p><code>OSSL_SERIALIZER_provider()</code> returns a pointer to a provider object, or
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NULL on error.</p>
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<p><code>OSSL_SERIALIZER_properties()</code> returns a pointer to a property
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definition string, or NULL on error.</p>
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<p><code>OSSL_SERIALIZER_is_a()</code> returns 1 of <em>serializer</em> was identifiable,
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otherwise 0.</p>
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<p><code>OSSL_SERIALIZER_number()</code> returns an integer.</p>
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<p>
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</p>
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<hr />
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<h1><a name="see_also">SEE ALSO</a></h1>
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<p><em>provider(7)</em>, <em>OSSL_SERIALIZER_CTX(3)</em>, <em>OSSL_SERIALIZER_to_bio(3)</em>,
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<em>OSSL_SERIALIZER_CTX_new_by_EVP_PKEY(3)</em>, <em>OPENSSL_CTX(3)</em></p>
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<p>
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</p>
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<hr />
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<h1><a name="history">HISTORY</a></h1>
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<p>The functions described here were added in OpenSSL 3.0.</p>
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<p>
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</p>
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<hr />
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<h1><a name="copyright">COPYRIGHT</a></h1>
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<p>Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.</p>
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<p>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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<a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>
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</body>
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</html>
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