1.\" $OpenBSD: SSL_CTX_set_cert_store.3,v 1.7 2018/03/27 17:35:50 schwarze Exp $ 2.\" OpenSSL 99d63d46 Oct 26 13:56:48 2016 -0400 3.\" 4.\" This file was written by Lutz Jaenicke <jaenicke@openssl.org>. 5.\" Copyright (c) 2001, 2002, 2005 The OpenSSL Project. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in 16.\" the documentation and/or other materials provided with the 17.\" distribution. 18.\" 19.\" 3. All advertising materials mentioning features or use of this 20.\" software must display the following acknowledgment: 21.\" "This product includes software developed by the OpenSSL Project 22.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 23.\" 24.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25.\" endorse or promote products derived from this software without 26.\" prior written permission. For written permission, please contact 27.\" openssl-core@openssl.org. 28.\" 29.\" 5. Products derived from this software may not be called "OpenSSL" 30.\" nor may "OpenSSL" appear in their names without prior written 31.\" permission of the OpenSSL Project. 32.\" 33.\" 6. Redistributions of any form whatsoever must retain the following 34.\" acknowledgment: 35.\" "This product includes software developed by the OpenSSL Project 36.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 37.\" 38.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49.\" OF THE POSSIBILITY OF SUCH DAMAGE. 50.\" 51.Dd $Mdocdate: March 27 2018 $ 52.Dt SSL_CTX_SET_CERT_STORE 3 53.Os 54.Sh NAME 55.Nm SSL_CTX_set_cert_store , 56.Nm SSL_CTX_get_cert_store 57.Nd manipulate X509 certificate verification storage 58.Sh SYNOPSIS 59.In openssl/ssl.h 60.Ft void 61.Fn SSL_CTX_set_cert_store "SSL_CTX *ctx" "X509_STORE *store" 62.Ft X509_STORE * 63.Fn SSL_CTX_get_cert_store "const SSL_CTX *ctx" 64.Sh DESCRIPTION 65.Fn SSL_CTX_set_cert_store 66sets the verification storage of 67.Fa ctx 68to or replaces it with 69.Fa store . 70If another 71.Vt X509_STORE 72object is currently set in 73.Fa ctx , 74it will be freed. 75.Pp 76.Fn SSL_CTX_get_cert_store 77returns a pointer to the current certificate verification storage. 78.Pp 79In order to verify the certificates presented by the peer, trusted CA 80certificates must be accessed. 81These CA certificates are made available via lookup methods, handled inside the 82.Vt X509_STORE . 83From the 84.Vt X509_STORE 85the 86.Vt X509_STORE_CTX 87used when verifying certificates is created. 88.Pp 89Typically the trusted certificate store is handled indirectly via using 90.Xr SSL_CTX_load_verify_locations 3 . 91Using the 92.Fn SSL_CTX_set_cert_store 93and 94.Fn SSL_CTX_get_cert_store 95functions it is possible to manipulate the 96.Vt X509_STORE 97object beyond the 98.Xr SSL_CTX_load_verify_locations 3 99call. 100.Pp 101Currently no detailed documentation on how to use the 102.Vt X509_STORE 103object is available. 104Not all members of the 105.Vt X509_STORE 106are used when the verification takes place. 107So will, for example, the 108.Fn verify_callback 109be overridden with the 110.Fn verify_callback 111set via the 112.Xr SSL_CTX_set_verify 3 113family of functions. 114This document must therefore be updated when documentation about the 115.Vt X509_STORE 116object and its handling becomes available. 117.Sh RETURN VALUES 118.Fn SSL_CTX_get_cert_store 119returns the current setting. 120.Sh SEE ALSO 121.Xr ssl 3 , 122.Xr SSL_CTX_load_verify_locations 3 , 123.Xr SSL_CTX_set_verify 3 , 124.Xr X509_STORE_new 3 125.Sh HISTORY 126.Fn SSL_CTX_set_cert_store 127and 128.Fn SSL_CTX_get_cert_store 129first appeared in SSLeay 0.8.1 and have been available since 130.Ox 2.4 . 131