SSL_CTX_set_cert_store, SSL_CTX_set1_cert_store, SSL_CTX_get_cert_store -
manipulate X509 certificate verification storage
#include <openssl/ssl.h>
void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store);
void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store);
X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx);
SSL_CTX_set_cert_store() sets/replaces the certificate verification
storage of
ctx to/with
store. If another X509_STORE object is
currently set in
ctx, it will be
X509_STORE_free()ed.
SSL_CTX_set1_cert_store() sets/replaces the certificate verification
storage of
ctx to/with
store. The
store's reference count
is incremented. If another X509_STORE object is currently set in
ctx,
it will be
X509_STORE_free()ed.
SSL_CTX_get_cert_store() returns a pointer to the current certificate
verification storage.
In order to verify the certificates presented by the peer, trusted CA
certificates must be accessed. These CA certificates are made available via
lookup methods, handled inside the X509_STORE. From the X509_STORE the
X509_STORE_CTX used when verifying certificates is created.
Typically the trusted certificate store is handled indirectly via using
SSL_CTX_load_verify_locations(3). Using the
SSL_CTX_set_cert_store() and
SSL_CTX_get_cert_store() functions
it is possible to manipulate the X509_STORE object beyond the
SSL_CTX_load_verify_locations(3) call.
Currently no detailed documentation on how to use the X509_STORE object is
available. Not all members of the X509_STORE are used when the verification
takes place. So will e.g. the
verify_callback() be overridden with the
verify_callback() set via the
SSL_CTX_set_verify(3) family of
functions. This document must therefore be updated when documentation about
the X509_STORE object and its handling becomes available.
SSL_CTX_set_cert_store() does not increment the
store's reference
count, so it should not be used to assign an X509_STORE that is owned by
another SSL_CTX.
To share X509_STOREs between two SSL_CTXs, use
SSL_CTX_get_cert_store()
to get the X509_STORE from the first SSL_CTX, and then use
SSL_CTX_set1_cert_store() to assign to the second SSL_CTX and increment
the reference count of the X509_STORE.
The X509_STORE structure used by an SSL_CTX is used for verifying peer
certificates and building certificate chains, it is also shared by every child
SSL structure. Applications wanting finer control can use functions such as
SSL_CTX_set1_verify_cert_store() instead.
SSL_CTX_set_cert_store() does not return diagnostic output.
SSL_CTX_set1_cert_store() does not return diagnostic output.
SSL_CTX_get_cert_store() returns the current setting.
ssl(7),
SSL_CTX_load_verify_locations(3),
SSL_CTX_set_verify(3)
Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy in the
file LICENSE in the source distribution or at
<
https://www.openssl.org/source/license.html>.