mirror of https://github.com/openssl/openssl.git
123 lines
3.4 KiB
Plaintext
123 lines
3.4 KiB
Plaintext
=pod
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=head1 NAME
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SSL_load_client_CA_file_ex, SSL_load_client_CA_file,
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SSL_add_file_cert_subjects_to_stack,
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SSL_add_dir_cert_subjects_to_stack,
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SSL_add_store_cert_subjects_to_stack
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- load certificate names
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=head1 SYNOPSIS
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#include <openssl/ssl.h>
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STACK_OF(X509_NAME) *SSL_load_client_CA_file_ex(const char *file,
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OSSL_LIB_CTX *libctx,
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const char *propq);
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STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file);
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int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
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const char *file);
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int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
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const char *dir);
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int SSL_add_store_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
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const char *store);
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=head1 DESCRIPTION
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SSL_load_client_CA_file_ex() reads certificates from I<file> and returns
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a STACK_OF(X509_NAME) with the subject names found. The library context I<libctx>
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and property query I<propq> are used when fetching algorithms from providers.
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SSL_load_client_CA_file() is similar to SSL_load_client_CA_file_ex()
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but uses NULL for the library context I<libctx> and property query I<propq>.
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SSL_add_file_cert_subjects_to_stack() reads certificates from I<file>,
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and adds their subject name to the already existing I<stack>.
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SSL_add_dir_cert_subjects_to_stack() reads certificates from every
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file in the directory I<dir>, and adds their subject name to the
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already existing I<stack>.
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SSL_add_store_cert_subjects_to_stack() loads certificates from the
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I<store> URI, and adds their subject name to the already existing
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I<stack>.
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=head1 NOTES
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SSL_load_client_CA_file() reads a file of PEM formatted certificates and
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extracts the X509_NAMES of the certificates found. While the name suggests
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the specific usage as support function for
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L<SSL_CTX_set_client_CA_list(3)>,
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it is not limited to CA certificates.
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=head1 RETURN VALUES
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The following return values can occur for SSL_load_client_CA_file_ex(), and
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SSL_load_client_CA_file():
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=over 4
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=item NULL
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The operation failed, check out the error stack for the reason.
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=item Pointer to STACK_OF(X509_NAME)
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Pointer to the subject names of the successfully read certificates.
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=back
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The following return values can occur for SSL_add_file_cert_subjects_to_stack(),
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SSL_add_dir_cert_subjects_to_stack(), and SSL_add_store_cert_subjects_to_stack():
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=over 4
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=item 0 (Failure)
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The operation failed.
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=item 1 (Success)
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The operation succeeded.
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=back
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=head1 EXAMPLES
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Load names of CAs from file and use it as a client CA list:
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SSL_CTX *ctx;
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STACK_OF(X509_NAME) *cert_names;
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...
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cert_names = SSL_load_client_CA_file("/path/to/CAfile.pem");
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if (cert_names != NULL)
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SSL_CTX_set_client_CA_list(ctx, cert_names);
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else
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/* error */
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...
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=head1 SEE ALSO
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L<ssl(7)>,
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L<ossl_store(7)>,
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L<SSL_CTX_set_client_CA_list(3)>
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=head1 HISTORY
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SSL_load_client_CA_file_ex() and SSL_add_store_cert_subjects_to_stack()
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were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2000-2024 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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