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71 lines
2.0 KiB
Plaintext
71 lines
2.0 KiB
Plaintext
=pod
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=head1 NAME
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SSL_set_retry_verify - indicate that certificate verification should be retried
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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int SSL_set_retry_verify(SSL *ssl);
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=head1 DESCRIPTION
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SSL_set_retry_verify() should be called from the certificate verification
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callback on a client when the application wants to indicate that the handshake
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should be suspended and the control should be returned to the application.
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L<SSL_want_retry_verify(3)> will return 1 as a consequence until the handshake
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is resumed again by the application, retrying the verification step.
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Please refer to L<SSL_CTX_set_cert_verify_callback(3)> for further details.
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=head1 NOTES
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The effect of calling SSL_set_retry_verify() outside of the certificate
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verification callback on the client side is undefined.
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=head1 RETURN VALUES
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SSL_set_retry verify() returns 1 on success, 0 otherwise.
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=head1 EXAMPLES
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The following code snippet shows how to obtain the B<SSL> object associated
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with the B<X509_STORE_CTX> to call the SSL_set_retry_verify() function:
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int idx = SSL_get_ex_data_X509_STORE_CTX_idx();
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SSL *ssl;
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/* this should not happen but check anyway */
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if (idx < 0
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|| (ssl = X509_STORE_CTX_get_ex_data(ctx, idx)) == NULL)
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return 0;
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if (/* we need to retry verification callback */)
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return SSL_set_retry_verify(ssl);
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/* do normal processing of the verification callback */
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=head1 SEE ALSO
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L<ssl(7)>, L<SSL_connect(3)>, L<SSL_CTX_set_cert_verify_callback(3)>,
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L<SSL_want_retry_verify(3)>
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=head1 HISTORY
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SSL_set_retry_verify() was added in OpenSSL 3.0.2 to replace backwards
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incompatible handling of a negative return value from the verification
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callback.
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=head1 COPYRIGHT
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Copyright 2022 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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