93 lines
3.1 KiB
Text
93 lines
3.1 KiB
Text
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=pod
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=head1 NAME
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SSL_set0_CA_list, SSL_CTX_set0_CA_list, SSL_get0_CA_list,
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SSL_CTX_get0_CA_list, SSL_add1_CA_list, SSL_CTX_add1_CA_list,
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SSL_get0_peer_CA_list - get or set CA list
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list);
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void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list);
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const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx);
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const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s);
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int SSL_CTX_add1_CA_list(SSL_CTX *ctx, const X509 *x);
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int SSL_add1_CA_list(SSL *ssl, const X509 *x);
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const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s);
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=head1 DESCRIPTION
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SSL_CTX_set0_CA_list() sets the list of CAs to be sent to the peer to
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B<name_list>. Ownership of B<name_list> is transferred to B<ctx> and
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it should not be freed by the caller.
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SSL_set0_CA_list() sets the list of CAs to be sent to the peer to B<name_list>
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overriding any list set in the parent B<SSL_CTX> of B<s>. Ownership of
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B<name_list> is transferred to B<s> and it should not be freed by the caller.
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SSL_CTX_get0_CA_list() retrieves any previously set list of CAs set for
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B<ctx>.
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SSL_CTX_get0_CA_list() retrieves any previously set list of CAs set for
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B<s> or if none are set the list from the parent B<SSL_CTX> is retrieved.
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SSL_CTX_add1_CA_list() appends the CA subject name extracted from B<x> to the
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list of CAs sent to peer for B<ctx>.
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SSL_add1_CA_list() appends the CA subject name extracted from B<x> to the
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list of CAs sent to the peer for B<s>, overriding the setting in the parent
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B<SSL_CTX>.
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SSL_get0_peer_CA_list() retrieves the list of CA names (if any) the peer
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has sent.
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=head1 NOTES
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These functions are generalised versions of the client authentication
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CA list functions such as L<SSL_CTX_set_client_CA_list(3)>.
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For TLS versions before 1.3 the list of CA names is only sent from the server
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to client when requesting a client certificate. So any list of CA names set
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is never sent from client to server and the list of CA names retrieved by
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SSL_get0_peer_CA_list() is always B<NULL>.
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For TLS 1.3 the list of CA names is sent using the B<certificate_authorities>
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extension and will be sent by a client (in the ClientHello message) or by
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a server (when requesting a certificate).
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=head1 RETURN VALUES
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SSL_CTX_set0_CA_list() and SSL_set0_CA_list() do not return a value.
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SSL_CTX_get0_CA_list() and SSL_get0_CA_list() return a stack of CA names
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or B<NULL> is no CA names are set.
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SSL_CTX_add1_CA_list() and SSL_add1_CA_list() return 1 for success and 0
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for failure.
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SSL_get0_peer_CA_list() returns a stack of CA names sent by the peer or
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B<NULL> or an empty stack if no list was sent.
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=head1 SEE ALSO
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L<ssl(7)>,
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L<SSL_CTX_set_client_CA_list(3)>,
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L<SSL_get_client_CA_list(3)>,
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L<SSL_load_client_CA_file(3)>,
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L<SSL_CTX_load_verify_locations(3)>
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=head1 COPYRIGHT
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Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (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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