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5d6322741a
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/25083)
74 lines
2.0 KiB
Plaintext
74 lines
2.0 KiB
Plaintext
=pod
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=head1 NAME
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SSL_get_verify_result - get result of peer certificate verification
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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long SSL_get_verify_result(const SSL *ssl);
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=head1 DESCRIPTION
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SSL_get_verify_result() returns the result of the verification of the
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X509 certificate presented by the peer, if any. I<ssl> B<MUST NOT> be NULL.
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=head1 NOTES
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SSL_get_verify_result() can only return one error code while the verification
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of a certificate can fail because of many reasons at the same time. Only
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the last verification error that occurred during the processing is available
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from SSL_get_verify_result().
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Sometimes there can be a sequence of errors leading to the verification
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failure as reported by SSL_get_verify_result().
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To get the errors, it is necessary to setup a verify callback via
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L<SSL_CTX_set_verify(3)> or L<SSL_set_verify(3)> and retrieve the errors
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from the error stack there, because once L<SSL_connect(3)> returns,
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these errors may no longer be available.
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The verification result is part of the established session and is restored
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when a session is reused.
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=head1 BUGS
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If no peer certificate was presented, the returned result code is
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X509_V_OK. This is because no verification error occurred, it does however
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not indicate success. SSL_get_verify_result() is only useful in connection
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with L<SSL_get_peer_certificate(3)>.
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=head1 RETURN VALUES
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The following return values can currently occur:
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=over 4
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=item X509_V_OK
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The verification succeeded or no peer certificate was presented.
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=item Any other value
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Documented in L<openssl-verify(1)>.
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=back
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=head1 SEE ALSO
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L<ssl(7)>, L<SSL_set_verify_result(3)>,
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L<SSL_get_peer_certificate(3)>,
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L<openssl-verify(1)>
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=head1 COPYRIGHT
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Copyright 2000-2023 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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