SSL_CTX_get0_param, SSL_get0_param, SSL_CTX_set1_param, SSL_set1_param,
SSL_CTX_set_purpose, SSL_CTX_set_trust, SSL_set_purpose, SSL_set_trust - get
and set verification parameters
#include <openssl/ssl.h>
X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx);
X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl);
int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
int SSL_CTX_set_purpose(SSL_CTX *ctx, int purpose);
int SSL_set_purpose(SSL *ssl, int purpose);
int SSL_CTX_set_trust(SSL_CTX *ctx, int trust);
int SSL_set_trust(SSL *ssl, int trust);
SSL_CTX_get0_param() and
SSL_get0_param() retrieve an internal
pointer to the verification parameters for
ctx or
ssl
respectively. The returned pointer must not be freed by the calling
application.
SSL_CTX_set1_param() and
SSL_set1_param() set the verification
parameters to
vpm for
ctx or
ssl.
The functions
SSL_CTX_set_purpose() and
SSL_set_purpose() are
shorthands which set the purpose parameter on the verification parameters
object. These functions are equivalent to calling
X509_VERIFY_PARAM_set_purpose() directly.
The functions
SSL_CTX_set_trust() and
SSL_set_trust() are
similarly shorthands which set the trust parameter on the verification
parameters object. These functions are equivalent to calling
X509_VERIFY_PARAM_set_trust() directly.
Typically parameters are retrieved from an
SSL_CTX or
SSL
structure using
SSL_CTX_get0_param() or
SSL_get0_param() and an
application modifies them to suit its needs: for example to add a hostname
check.
SSL_CTX_get0_param() and
SSL_get0_param() return a pointer to an
X509_VERIFY_PARAM structure.
SSL_CTX_set1_param(),
SSL_set1_param(),
SSL_CTX_set_purpose(),
SSL_set_purpose(),
SSL_CTX_set_trust() and
SSL_set_trust() return 1 for success and
0 for failure.
Check hostname matches "
www.foo.com" in peer certificate:
X509_VERIFY_PARAM *vpm = SSL_get0_param(ssl);
X509_VERIFY_PARAM_set1_host(vpm, "www.foo.com", 0);
ssl(7),
X509_VERIFY_PARAM_set_flags(3)
These functions were added in OpenSSL 1.0.2.
Copyright 2015-2022 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>.