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The RAND_DRBG API did not fit well into the new provider concept as implemented by EVP_RAND and EVP_RAND_CTX. The main reason is that the RAND_DRBG API is a mixture of 'front end' and 'back end' API calls and some of its API calls are rather low-level. This holds in particular for the callback mechanism (RAND_DRBG_set_callbacks()) and the RAND_DRBG type changing mechanism (RAND_DRBG_set()). Adding a compatibility layer to continue supporting the RAND_DRBG API as a legacy API for a regular deprecation period turned out to come at the price of complicating the new provider API unnecessarily. Since the RAND_DRBG API exists only since version 1.1.1, it was decided by the OMC to drop it entirely. Other related changes: Use RNG instead of DRBG in EVP_RAND documentation. The documentation was using DRBG in places where it should have been RNG or CSRNG. Move the RAND_DRBG(7) documentation to EVP_RAND(7). Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/12509)
100 lines
3.4 KiB
Plaintext
100 lines
3.4 KiB
Plaintext
=pod
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=head1 NAME
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BIO_get_ex_new_index, BIO_set_ex_data, BIO_get_ex_data,
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BIO_set_app_data, BIO_get_app_data,
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DH_get_ex_new_index, DH_set_ex_data, DH_get_ex_data,
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DSA_get_ex_new_index, DSA_set_ex_data, DSA_get_ex_data,
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ECDH_get_ex_new_index, ECDH_set_ex_data, ECDH_get_ex_data,
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EC_KEY_get_ex_new_index, EC_KEY_set_ex_data, EC_KEY_get_ex_data,
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ENGINE_get_ex_new_index, ENGINE_set_ex_data, ENGINE_get_ex_data,
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EVP_PKEY_get_ex_new_index, EVP_PKEY_set_ex_data, EVP_PKEY_get_ex_data,
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RSA_get_ex_new_index, RSA_set_ex_data, RSA_get_ex_data,
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RSA_set_app_data, RSA_get_app_data,
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SSL_get_ex_new_index, SSL_set_ex_data, SSL_get_ex_data,
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SSL_set_app_data, SSL_get_app_data,
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SSL_CTX_get_ex_new_index, SSL_CTX_set_ex_data, SSL_CTX_get_ex_data,
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SSL_CTX_set_app_data, SSL_CTX_get_app_data,
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SSL_SESSION_get_ex_new_index, SSL_SESSION_set_ex_data, SSL_SESSION_get_ex_data,
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SSL_SESSION_set_app_data, SSL_SESSION_get_app_data,
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UI_get_ex_new_index, UI_set_ex_data, UI_get_ex_data,
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UI_set_app_data, UI_get_app_data,
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X509_STORE_CTX_get_ex_new_index, X509_STORE_CTX_set_ex_data, X509_STORE_CTX_get_ex_data,
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X509_STORE_CTX_set_app_data, X509_STORE_CTX_get_app_data,
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X509_STORE_get_ex_new_index, X509_STORE_set_ex_data, X509_STORE_get_ex_data,
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X509_get_ex_new_index, X509_set_ex_data, X509_get_ex_data
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- application-specific data
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=head1 SYNOPSIS
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=for openssl generic
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#include <openssl/x509.h>
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int TYPE_get_ex_new_index(long argl, void *argp,
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CRYPTO_EX_new *new_func,
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CRYPTO_EX_dup *dup_func,
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CRYPTO_EX_free *free_func);
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int TYPE_set_ex_data(TYPE *d, int idx, void *arg);
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void *TYPE_get_ex_data(const TYPE *d, int idx);
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#define TYPE_set_app_data(TYPE *d, void *arg)
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#define TYPE_get_app_data(TYPE *d)
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=head1 DESCRIPTION
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In the description here, I<TYPE> is used a placeholder
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for any of the OpenSSL datatypes listed in
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L<CRYPTO_get_ex_new_index(3)>.
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These functions handle application-specific data for OpenSSL data
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structures.
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TYPE_get_ex_new_index() is a macro that calls CRYPTO_get_ex_new_index()
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with the correct B<index> value.
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TYPE_set_ex_data() is a function that calls CRYPTO_set_ex_data() with
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an offset into the opaque exdata part of the TYPE object.
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TYPE_get_ex_data() is a function that calls CRYPTO_get_ex_data() with
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an offset into the opaque exdata part of the TYPE object.
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For compatibility with previous releases, the exdata index of zero is
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reserved for "application data." There are two convenience functions for
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this.
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TYPE_set_app_data() is a macro that invokes TYPE_set_ex_data() with
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B<idx> set to zero.
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TYPE_get_app_data() is a macro that invokes TYPE_get_ex_data() with
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B<idx> set to zero.
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=head1 RETURN VALUES
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TYPE_get_ex_new_index() returns a new index on success or -1 on error.
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TYPE_set_ex_data() returns 1 on success or 0 on error.
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TYPE_get_ex_data() returns the application data or NULL if an error occurred.
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=head1 SEE ALSO
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L<CRYPTO_get_ex_new_index(3)>.
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=head1 HISTORY
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The ENGINE_get_ex_new_index(), ENGINE_set_ex_data() and ENGINE_get_ex_data()
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functions were deprecated in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
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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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L<https://www.openssl.org/source/license.html>.
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=cut
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