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024f543c15
The SSL variable |in_handshake| seems misplaced. It would be better to have it in the STATEM structure. Reviewed-by: Tim Hudson <tjh@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org>
3286 lines
95 KiB
C
3286 lines
95 KiB
C
/*
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* ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
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*/
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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* ECC cipher suite support in OpenSSL originally developed by
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* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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*/
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/* ====================================================================
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* Copyright 2005 Nokia. All rights reserved.
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*
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* The portions of the attached software ("Contribution") is developed by
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* Nokia Corporation and is licensed pursuant to the OpenSSL open source
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* license.
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*
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* The Contribution, originally written by Mika Kousa and Pasi Eronen of
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* Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
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* support (see RFC 4279) to OpenSSL.
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*
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* No patent licenses or other rights except those expressly stated in
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* the OpenSSL open source license shall be deemed granted or received
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* expressly, by implication, estoppel, or otherwise.
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*
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* No assurances are provided by Nokia that the Contribution does not
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* infringe the patent or other intellectual property rights of any third
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* party or that the license provides you with all the necessary rights
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* to make use of the Contribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
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* ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
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* SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
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* OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
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* OTHERWISE.
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*/
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#ifdef REF_CHECK
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# include <assert.h>
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#endif
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#include <stdio.h>
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#include "ssl_locl.h"
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#include <openssl/objects.h>
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#include <openssl/lhash.h>
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#include <openssl/x509v3.h>
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#include <openssl/rand.h>
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#include <openssl/ocsp.h>
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#ifndef OPENSSL_NO_DH
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# include <openssl/dh.h>
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#endif
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#ifndef OPENSSL_NO_ENGINE
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# include <openssl/engine.h>
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#endif
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const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
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SSL3_ENC_METHOD ssl3_undef_enc_method = {
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/*
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* evil casts, but these functions are only called if there's a library
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* bug
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*/
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(int (*)(SSL *, int))ssl_undefined_function,
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(int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
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ssl_undefined_function,
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(int (*)(SSL *, unsigned char *, unsigned char *, int))
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ssl_undefined_function,
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(int (*)(SSL *, int))ssl_undefined_function,
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(int (*)(SSL *, const char *, int, unsigned char *))
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ssl_undefined_function,
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0, /* finish_mac_length */
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(int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
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NULL, /* client_finished_label */
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0, /* client_finished_label_len */
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NULL, /* server_finished_label */
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0, /* server_finished_label_len */
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(int (*)(int))ssl_undefined_function,
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(int (*)(SSL *, unsigned char *, size_t, const char *,
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size_t, const unsigned char *, size_t,
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int use_context))ssl_undefined_function,
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};
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static void clear_ciphers(SSL *s)
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{
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/* clear the current cipher */
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ssl_clear_cipher_ctx(s);
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ssl_clear_hash_ctx(&s->read_hash);
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ssl_clear_hash_ctx(&s->write_hash);
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}
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int SSL_clear(SSL *s)
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{
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if (s->method == NULL) {
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SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
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return (0);
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}
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if (ssl_clear_bad_session(s)) {
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SSL_SESSION_free(s->session);
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s->session = NULL;
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}
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s->error = 0;
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s->hit = 0;
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s->shutdown = 0;
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if (s->renegotiate) {
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SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
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return 0;
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}
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ossl_statem_clear(s);
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s->version = s->method->version;
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s->client_version = s->version;
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s->rwstate = SSL_NOTHING;
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BUF_MEM_free(s->init_buf);
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s->init_buf = NULL;
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clear_ciphers(s);
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s->first_packet = 0;
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/*
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* Check to see if we were changed into a different method, if so, revert
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* back if we are not doing session-id reuse.
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*/
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if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
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&& (s->method != s->ctx->method)) {
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s->method->ssl_free(s);
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s->method = s->ctx->method;
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if (!s->method->ssl_new(s))
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return (0);
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} else
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s->method->ssl_clear(s);
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RECORD_LAYER_clear(&s->rlayer);
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return (1);
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}
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/** Used to change an SSL_CTXs default SSL method type */
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int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
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{
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STACK_OF(SSL_CIPHER) *sk;
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ctx->method = meth;
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sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
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&(ctx->cipher_list_by_id),
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SSL_DEFAULT_CIPHER_LIST, ctx->cert);
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if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
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SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
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SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
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return (0);
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}
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return (1);
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}
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SSL *SSL_new(SSL_CTX *ctx)
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{
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SSL *s;
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if (ctx == NULL) {
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SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
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return (NULL);
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}
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if (ctx->method == NULL) {
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SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
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return (NULL);
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}
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s = OPENSSL_zalloc(sizeof(*s));
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if (s == NULL)
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goto err;
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RECORD_LAYER_init(&s->rlayer, s);
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s->options = ctx->options;
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s->mode = ctx->mode;
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s->max_cert_list = ctx->max_cert_list;
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s->references = 1;
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/*
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* Earlier library versions used to copy the pointer to the CERT, not
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* its contents; only when setting new parameters for the per-SSL
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* copy, ssl_cert_new would be called (and the direct reference to
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* the per-SSL_CTX settings would be lost, but those still were
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* indirectly accessed for various purposes, and for that reason they
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* used to be known as s->ctx->default_cert). Now we don't look at the
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* SSL_CTX's CERT after having duplicated it once.
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*/
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s->cert = ssl_cert_dup(ctx->cert);
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if (s->cert == NULL)
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goto err;
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RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
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s->msg_callback = ctx->msg_callback;
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s->msg_callback_arg = ctx->msg_callback_arg;
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s->verify_mode = ctx->verify_mode;
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s->not_resumable_session_cb = ctx->not_resumable_session_cb;
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s->sid_ctx_length = ctx->sid_ctx_length;
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OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
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memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
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s->verify_callback = ctx->default_verify_callback;
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s->generate_session_id = ctx->generate_session_id;
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s->param = X509_VERIFY_PARAM_new();
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if (!s->param)
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goto err;
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X509_VERIFY_PARAM_inherit(s->param, ctx->param);
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s->quiet_shutdown = ctx->quiet_shutdown;
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s->max_send_fragment = ctx->max_send_fragment;
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CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
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s->ctx = ctx;
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s->tlsext_debug_cb = 0;
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s->tlsext_debug_arg = NULL;
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s->tlsext_ticket_expected = 0;
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s->tlsext_status_type = -1;
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s->tlsext_status_expected = 0;
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s->tlsext_ocsp_ids = NULL;
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s->tlsext_ocsp_exts = NULL;
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s->tlsext_ocsp_resp = NULL;
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s->tlsext_ocsp_resplen = -1;
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CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
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s->initial_ctx = ctx;
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# ifndef OPENSSL_NO_EC
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if (ctx->tlsext_ecpointformatlist) {
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s->tlsext_ecpointformatlist =
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BUF_memdup(ctx->tlsext_ecpointformatlist,
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ctx->tlsext_ecpointformatlist_length);
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if (!s->tlsext_ecpointformatlist)
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goto err;
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s->tlsext_ecpointformatlist_length =
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ctx->tlsext_ecpointformatlist_length;
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}
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if (ctx->tlsext_ellipticcurvelist) {
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s->tlsext_ellipticcurvelist =
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BUF_memdup(ctx->tlsext_ellipticcurvelist,
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ctx->tlsext_ellipticcurvelist_length);
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if (!s->tlsext_ellipticcurvelist)
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goto err;
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s->tlsext_ellipticcurvelist_length =
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ctx->tlsext_ellipticcurvelist_length;
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}
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# endif
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# ifndef OPENSSL_NO_NEXTPROTONEG
|
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s->next_proto_negotiated = NULL;
|
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# endif
|
|
|
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if (s->ctx->alpn_client_proto_list) {
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s->alpn_client_proto_list =
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OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
|
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if (s->alpn_client_proto_list == NULL)
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goto err;
|
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memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
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s->ctx->alpn_client_proto_list_len);
|
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s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
|
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}
|
|
|
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s->verify_result = X509_V_OK;
|
|
|
|
s->method = ctx->method;
|
|
|
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if (!s->method->ssl_new(s))
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goto err;
|
|
|
|
s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
|
|
|
|
if (!SSL_clear(s))
|
|
goto err;
|
|
|
|
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
s->psk_client_callback = ctx->psk_client_callback;
|
|
s->psk_server_callback = ctx->psk_server_callback;
|
|
#endif
|
|
|
|
return (s);
|
|
err:
|
|
SSL_free(s);
|
|
SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
|
|
return (NULL);
|
|
}
|
|
|
|
int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
|
|
unsigned int sid_ctx_len)
|
|
{
|
|
if (sid_ctx_len > sizeof ctx->sid_ctx) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
|
|
SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
|
return 0;
|
|
}
|
|
ctx->sid_ctx_length = sid_ctx_len;
|
|
memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
|
|
unsigned int sid_ctx_len)
|
|
{
|
|
if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
|
|
SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
|
|
SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
|
|
return 0;
|
|
}
|
|
ssl->sid_ctx_length = sid_ctx_len;
|
|
memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
|
|
{
|
|
CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
|
|
ctx->generate_session_id = cb;
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
|
|
{
|
|
CRYPTO_w_lock(CRYPTO_LOCK_SSL);
|
|
ssl->generate_session_id = cb;
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
|
|
return 1;
|
|
}
|
|
|
|
int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
|
|
unsigned int id_len)
|
|
{
|
|
/*
|
|
* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
|
|
* we can "construct" a session to give us the desired check - ie. to
|
|
* find if there's a session in the hash table that would conflict with
|
|
* any new session built out of this id/id_len and the ssl_version in use
|
|
* by this SSL.
|
|
*/
|
|
SSL_SESSION r, *p;
|
|
|
|
if (id_len > sizeof r.session_id)
|
|
return 0;
|
|
|
|
r.ssl_version = ssl->version;
|
|
r.session_id_length = id_len;
|
|
memcpy(r.session_id, id, id_len);
|
|
|
|
CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
|
|
p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
|
|
CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
|
|
return (p != NULL);
|
|
}
|
|
|
|
int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
|
|
{
|
|
return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
|
}
|
|
|
|
int SSL_set_purpose(SSL *s, int purpose)
|
|
{
|
|
return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
|
|
}
|
|
|
|
int SSL_CTX_set_trust(SSL_CTX *s, int trust)
|
|
{
|
|
return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
|
}
|
|
|
|
int SSL_set_trust(SSL *s, int trust)
|
|
{
|
|
return X509_VERIFY_PARAM_set_trust(s->param, trust);
|
|
}
|
|
|
|
int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
|
|
{
|
|
return X509_VERIFY_PARAM_set1(ctx->param, vpm);
|
|
}
|
|
|
|
int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
|
|
{
|
|
return X509_VERIFY_PARAM_set1(ssl->param, vpm);
|
|
}
|
|
|
|
X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
|
|
{
|
|
return ctx->param;
|
|
}
|
|
|
|
X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
|
|
{
|
|
return ssl->param;
|
|
}
|
|
|
|
void SSL_certs_clear(SSL *s)
|
|
{
|
|
ssl_cert_clear_certs(s->cert);
|
|
}
|
|
|
|
void SSL_free(SSL *s)
|
|
{
|
|
int i;
|
|
|
|
if (s == NULL)
|
|
return;
|
|
|
|
i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
|
|
#ifdef REF_PRINT
|
|
REF_PRINT("SSL", s);
|
|
#endif
|
|
if (i > 0)
|
|
return;
|
|
#ifdef REF_CHECK
|
|
if (i < 0) {
|
|
fprintf(stderr, "SSL_free, bad reference count\n");
|
|
abort(); /* ok */
|
|
}
|
|
#endif
|
|
|
|
X509_VERIFY_PARAM_free(s->param);
|
|
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
|
|
|
|
if (s->bbio != NULL) {
|
|
/* If the buffering BIO is in place, pop it off */
|
|
if (s->bbio == s->wbio) {
|
|
s->wbio = BIO_pop(s->wbio);
|
|
}
|
|
BIO_free(s->bbio);
|
|
s->bbio = NULL;
|
|
}
|
|
BIO_free_all(s->rbio);
|
|
if (s->wbio != s->rbio)
|
|
BIO_free_all(s->wbio);
|
|
|
|
BUF_MEM_free(s->init_buf);
|
|
|
|
/* add extra stuff */
|
|
sk_SSL_CIPHER_free(s->cipher_list);
|
|
sk_SSL_CIPHER_free(s->cipher_list_by_id);
|
|
|
|
/* Make the next call work :-) */
|
|
if (s->session != NULL) {
|
|
ssl_clear_bad_session(s);
|
|
SSL_SESSION_free(s->session);
|
|
}
|
|
|
|
clear_ciphers(s);
|
|
|
|
ssl_cert_free(s->cert);
|
|
/* Free up if allocated */
|
|
|
|
OPENSSL_free(s->tlsext_hostname);
|
|
SSL_CTX_free(s->initial_ctx);
|
|
#ifndef OPENSSL_NO_EC
|
|
OPENSSL_free(s->tlsext_ecpointformatlist);
|
|
OPENSSL_free(s->tlsext_ellipticcurvelist);
|
|
#endif /* OPENSSL_NO_EC */
|
|
sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
|
|
sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
|
|
OPENSSL_free(s->tlsext_ocsp_resp);
|
|
OPENSSL_free(s->alpn_client_proto_list);
|
|
|
|
sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
|
|
|
|
if (s->method != NULL)
|
|
s->method->ssl_free(s);
|
|
|
|
RECORD_LAYER_release(&s->rlayer);
|
|
|
|
SSL_CTX_free(s->ctx);
|
|
|
|
#if !defined(OPENSSL_NO_NEXTPROTONEG)
|
|
OPENSSL_free(s->next_proto_negotiated);
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_SRTP
|
|
sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
|
|
#endif
|
|
|
|
OPENSSL_free(s);
|
|
}
|
|
|
|
void SSL_set_rbio(SSL *s, BIO *rbio)
|
|
{
|
|
if (s->rbio != rbio)
|
|
BIO_free_all(s->rbio);
|
|
s->rbio = rbio;
|
|
}
|
|
|
|
void SSL_set_wbio(SSL *s, BIO *wbio)
|
|
{
|
|
/*
|
|
* If the output buffering BIO is still in place, remove it
|
|
*/
|
|
if (s->bbio != NULL) {
|
|
if (s->wbio == s->bbio) {
|
|
s->wbio = s->wbio->next_bio;
|
|
s->bbio->next_bio = NULL;
|
|
}
|
|
}
|
|
if (s->wbio != wbio && s->rbio != s->wbio)
|
|
BIO_free_all(s->wbio);
|
|
s->wbio = wbio;
|
|
}
|
|
|
|
void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
|
|
{
|
|
SSL_set_wbio(s, wbio);
|
|
SSL_set_rbio(s, rbio);
|
|
}
|
|
|
|
BIO *SSL_get_rbio(const SSL *s)
|
|
{
|
|
return (s->rbio);
|
|
}
|
|
|
|
BIO *SSL_get_wbio(const SSL *s)
|
|
{
|
|
return (s->wbio);
|
|
}
|
|
|
|
int SSL_get_fd(const SSL *s)
|
|
{
|
|
return (SSL_get_rfd(s));
|
|
}
|
|
|
|
int SSL_get_rfd(const SSL *s)
|
|
{
|
|
int ret = -1;
|
|
BIO *b, *r;
|
|
|
|
b = SSL_get_rbio(s);
|
|
r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
|
if (r != NULL)
|
|
BIO_get_fd(r, &ret);
|
|
return (ret);
|
|
}
|
|
|
|
int SSL_get_wfd(const SSL *s)
|
|
{
|
|
int ret = -1;
|
|
BIO *b, *r;
|
|
|
|
b = SSL_get_wbio(s);
|
|
r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
|
|
if (r != NULL)
|
|
BIO_get_fd(r, &ret);
|
|
return (ret);
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_SOCK
|
|
int SSL_set_fd(SSL *s, int fd)
|
|
{
|
|
int ret = 0;
|
|
BIO *bio = NULL;
|
|
|
|
bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
|
|
goto err;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set_bio(s, bio, bio);
|
|
ret = 1;
|
|
err:
|
|
return (ret);
|
|
}
|
|
|
|
int SSL_set_wfd(SSL *s, int fd)
|
|
{
|
|
int ret = 0;
|
|
BIO *bio = NULL;
|
|
|
|
if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
|
|
|| ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
|
|
bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
|
|
goto err;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set_bio(s, SSL_get_rbio(s), bio);
|
|
} else
|
|
SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
|
|
ret = 1;
|
|
err:
|
|
return (ret);
|
|
}
|
|
|
|
int SSL_set_rfd(SSL *s, int fd)
|
|
{
|
|
int ret = 0;
|
|
BIO *bio = NULL;
|
|
|
|
if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
|
|
|| ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
|
|
bio = BIO_new(BIO_s_socket());
|
|
|
|
if (bio == NULL) {
|
|
SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
|
|
goto err;
|
|
}
|
|
BIO_set_fd(bio, fd, BIO_NOCLOSE);
|
|
SSL_set_bio(s, bio, SSL_get_wbio(s));
|
|
} else
|
|
SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
|
|
ret = 1;
|
|
err:
|
|
return (ret);
|
|
}
|
|
#endif
|
|
|
|
/* return length of latest Finished message we sent, copy to 'buf' */
|
|
size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
if (s->s3 != NULL) {
|
|
ret = s->s3->tmp.finish_md_len;
|
|
if (count > ret)
|
|
count = ret;
|
|
memcpy(buf, s->s3->tmp.finish_md, count);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* return length of latest Finished message we expected, copy to 'buf' */
|
|
size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
|
|
{
|
|
size_t ret = 0;
|
|
|
|
if (s->s3 != NULL) {
|
|
ret = s->s3->tmp.peer_finish_md_len;
|
|
if (count > ret)
|
|
count = ret;
|
|
memcpy(buf, s->s3->tmp.peer_finish_md, count);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int SSL_get_verify_mode(const SSL *s)
|
|
{
|
|
return (s->verify_mode);
|
|
}
|
|
|
|
int SSL_get_verify_depth(const SSL *s)
|
|
{
|
|
return X509_VERIFY_PARAM_get_depth(s->param);
|
|
}
|
|
|
|
int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
|
|
return (s->verify_callback);
|
|
}
|
|
|
|
int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
|
|
{
|
|
return (ctx->verify_mode);
|
|
}
|
|
|
|
int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
|
|
{
|
|
return X509_VERIFY_PARAM_get_depth(ctx->param);
|
|
}
|
|
|
|
int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
|
|
return (ctx->default_verify_callback);
|
|
}
|
|
|
|
void SSL_set_verify(SSL *s, int mode,
|
|
int (*callback) (int ok, X509_STORE_CTX *ctx))
|
|
{
|
|
s->verify_mode = mode;
|
|
if (callback != NULL)
|
|
s->verify_callback = callback;
|
|
}
|
|
|
|
void SSL_set_verify_depth(SSL *s, int depth)
|
|
{
|
|
X509_VERIFY_PARAM_set_depth(s->param, depth);
|
|
}
|
|
|
|
void SSL_set_read_ahead(SSL *s, int yes)
|
|
{
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
|
|
}
|
|
|
|
int SSL_get_read_ahead(const SSL *s)
|
|
{
|
|
return RECORD_LAYER_get_read_ahead(&s->rlayer);
|
|
}
|
|
|
|
int SSL_pending(const SSL *s)
|
|
{
|
|
/*
|
|
* SSL_pending cannot work properly if read-ahead is enabled
|
|
* (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
|
|
* impossible to fix since SSL_pending cannot report errors that may be
|
|
* observed while scanning the new data. (Note that SSL_pending() is
|
|
* often used as a boolean value, so we'd better not return -1.)
|
|
*/
|
|
return (s->method->ssl_pending(s));
|
|
}
|
|
|
|
X509 *SSL_get_peer_certificate(const SSL *s)
|
|
{
|
|
X509 *r;
|
|
|
|
if ((s == NULL) || (s->session == NULL))
|
|
r = NULL;
|
|
else
|
|
r = s->session->peer;
|
|
|
|
if (r == NULL)
|
|
return (r);
|
|
|
|
X509_up_ref(r);
|
|
|
|
return (r);
|
|
}
|
|
|
|
STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
|
|
{
|
|
STACK_OF(X509) *r;
|
|
|
|
if ((s == NULL) || (s->session == NULL))
|
|
r = NULL;
|
|
else
|
|
r = s->session->peer_chain;
|
|
|
|
/*
|
|
* If we are a client, cert_chain includes the peer's own certificate; if
|
|
* we are a server, it does not.
|
|
*/
|
|
|
|
return (r);
|
|
}
|
|
|
|
/*
|
|
* Now in theory, since the calling process own 't' it should be safe to
|
|
* modify. We need to be able to read f without being hassled
|
|
*/
|
|
int SSL_copy_session_id(SSL *t, const SSL *f)
|
|
{
|
|
/* Do we need to to SSL locking? */
|
|
if (!SSL_set_session(t, SSL_get_session(f))) {
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
|
|
*/
|
|
if (t->method != f->method) {
|
|
t->method->ssl_free(t); /* cleanup current */
|
|
t->method = f->method; /* change method */
|
|
t->method->ssl_new(t); /* setup new */
|
|
}
|
|
|
|
CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
|
|
ssl_cert_free(t->cert);
|
|
t->cert = f->cert;
|
|
if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Fix this so it checks all the valid key/cert options */
|
|
int SSL_CTX_check_private_key(const SSL_CTX *ctx)
|
|
{
|
|
if ((ctx == NULL) ||
|
|
(ctx->cert->key->x509 == NULL)) {
|
|
SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
|
|
SSL_R_NO_CERTIFICATE_ASSIGNED);
|
|
return (0);
|
|
}
|
|
if (ctx->cert->key->privatekey == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
|
|
SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
|
return (0);
|
|
}
|
|
return (X509_check_private_key
|
|
(ctx->cert->key->x509, ctx->cert->key->privatekey));
|
|
}
|
|
|
|
/* Fix this function so that it takes an optional type parameter */
|
|
int SSL_check_private_key(const SSL *ssl)
|
|
{
|
|
if (ssl == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
|
|
return (0);
|
|
}
|
|
if (ssl->cert->key->x509 == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
|
|
return (0);
|
|
}
|
|
if (ssl->cert->key->privatekey == NULL) {
|
|
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
|
|
return (0);
|
|
}
|
|
return (X509_check_private_key(ssl->cert->key->x509,
|
|
ssl->cert->key->privatekey));
|
|
}
|
|
|
|
int SSL_accept(SSL *s)
|
|
{
|
|
if (s->handshake_func == 0)
|
|
/* Not properly initialized yet */
|
|
SSL_set_accept_state(s);
|
|
|
|
return (s->method->ssl_accept(s));
|
|
}
|
|
|
|
int SSL_connect(SSL *s)
|
|
{
|
|
if (s->handshake_func == 0)
|
|
/* Not properly initialized yet */
|
|
SSL_set_connect_state(s);
|
|
|
|
return (s->method->ssl_connect(s));
|
|
}
|
|
|
|
long SSL_get_default_timeout(const SSL *s)
|
|
{
|
|
return (s->method->get_timeout());
|
|
}
|
|
|
|
int SSL_read(SSL *s, void *buf, int num)
|
|
{
|
|
if (s->handshake_func == 0) {
|
|
SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
|
s->rwstate = SSL_NOTHING;
|
|
return (0);
|
|
}
|
|
return (s->method->ssl_read(s, buf, num));
|
|
}
|
|
|
|
int SSL_peek(SSL *s, void *buf, int num)
|
|
{
|
|
if (s->handshake_func == 0) {
|
|
SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
|
|
return (0);
|
|
}
|
|
return (s->method->ssl_peek(s, buf, num));
|
|
}
|
|
|
|
int SSL_write(SSL *s, const void *buf, int num)
|
|
{
|
|
if (s->handshake_func == 0) {
|
|
SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if (s->shutdown & SSL_SENT_SHUTDOWN) {
|
|
s->rwstate = SSL_NOTHING;
|
|
SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
|
|
return (-1);
|
|
}
|
|
return (s->method->ssl_write(s, buf, num));
|
|
}
|
|
|
|
int SSL_shutdown(SSL *s)
|
|
{
|
|
/*
|
|
* Note that this function behaves differently from what one might
|
|
* expect. Return values are 0 for no success (yet), 1 for success; but
|
|
* calling it once is usually not enough, even if blocking I/O is used
|
|
* (see ssl3_shutdown).
|
|
*/
|
|
|
|
if (s->handshake_func == 0) {
|
|
SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
if ((s != NULL) && !SSL_in_init(s))
|
|
return (s->method->ssl_shutdown(s));
|
|
else
|
|
return (1);
|
|
}
|
|
|
|
int SSL_renegotiate(SSL *s)
|
|
{
|
|
if (s->renegotiate == 0)
|
|
s->renegotiate = 1;
|
|
|
|
s->new_session = 1;
|
|
|
|
return (s->method->ssl_renegotiate(s));
|
|
}
|
|
|
|
int SSL_renegotiate_abbreviated(SSL *s)
|
|
{
|
|
if (s->renegotiate == 0)
|
|
s->renegotiate = 1;
|
|
|
|
s->new_session = 0;
|
|
|
|
return (s->method->ssl_renegotiate(s));
|
|
}
|
|
|
|
int SSL_renegotiate_pending(SSL *s)
|
|
{
|
|
/*
|
|
* becomes true when negotiation is requested; false again once a
|
|
* handshake has finished
|
|
*/
|
|
return (s->renegotiate != 0);
|
|
}
|
|
|
|
long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
|
|
{
|
|
long l;
|
|
|
|
switch (cmd) {
|
|
case SSL_CTRL_GET_READ_AHEAD:
|
|
return (RECORD_LAYER_get_read_ahead(&s->rlayer));
|
|
case SSL_CTRL_SET_READ_AHEAD:
|
|
l = RECORD_LAYER_get_read_ahead(&s->rlayer);
|
|
RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
|
|
return (l);
|
|
|
|
case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
|
s->msg_callback_arg = parg;
|
|
return 1;
|
|
|
|
case SSL_CTRL_OPTIONS:
|
|
return (s->options |= larg);
|
|
case SSL_CTRL_CLEAR_OPTIONS:
|
|
return (s->options &= ~larg);
|
|
case SSL_CTRL_MODE:
|
|
return (s->mode |= larg);
|
|
case SSL_CTRL_CLEAR_MODE:
|
|
return (s->mode &= ~larg);
|
|
case SSL_CTRL_GET_MAX_CERT_LIST:
|
|
return (s->max_cert_list);
|
|
case SSL_CTRL_SET_MAX_CERT_LIST:
|
|
l = s->max_cert_list;
|
|
s->max_cert_list = larg;
|
|
return (l);
|
|
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
|
if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
|
return 0;
|
|
s->max_send_fragment = larg;
|
|
return 1;
|
|
case SSL_CTRL_GET_RI_SUPPORT:
|
|
if (s->s3)
|
|
return s->s3->send_connection_binding;
|
|
else
|
|
return 0;
|
|
case SSL_CTRL_CERT_FLAGS:
|
|
return (s->cert->cert_flags |= larg);
|
|
case SSL_CTRL_CLEAR_CERT_FLAGS:
|
|
return (s->cert->cert_flags &= ~larg);
|
|
|
|
case SSL_CTRL_GET_RAW_CIPHERLIST:
|
|
if (parg) {
|
|
if (s->s3->tmp.ciphers_raw == NULL)
|
|
return 0;
|
|
*(unsigned char **)parg = s->s3->tmp.ciphers_raw;
|
|
return (int)s->s3->tmp.ciphers_rawlen;
|
|
} else {
|
|
return TLS_CIPHER_LEN;
|
|
}
|
|
case SSL_CTRL_GET_EXTMS_SUPPORT:
|
|
if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
|
|
return -1;
|
|
if (s->session->flags & SSL_SESS_FLAG_EXTMS)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
default:
|
|
return (s->method->ssl_ctrl(s, cmd, larg, parg));
|
|
}
|
|
}
|
|
|
|
long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
|
|
{
|
|
switch (cmd) {
|
|
case SSL_CTRL_SET_MSG_CALLBACK:
|
|
s->msg_callback = (void (*)
|
|
(int write_p, int version, int content_type,
|
|
const void *buf, size_t len, SSL *ssl,
|
|
void *arg))(fp);
|
|
return 1;
|
|
|
|
default:
|
|
return (s->method->ssl_callback_ctrl(s, cmd, fp));
|
|
}
|
|
}
|
|
|
|
LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
|
|
{
|
|
return ctx->sessions;
|
|
}
|
|
|
|
long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
|
|
{
|
|
long l;
|
|
/* For some cases with ctx == NULL perform syntax checks */
|
|
if (ctx == NULL) {
|
|
switch (cmd) {
|
|
#ifndef OPENSSL_NO_EC
|
|
case SSL_CTRL_SET_CURVES_LIST:
|
|
return tls1_set_curves_list(NULL, NULL, parg);
|
|
#endif
|
|
case SSL_CTRL_SET_SIGALGS_LIST:
|
|
case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
|
|
return tls1_set_sigalgs_list(NULL, parg, 0);
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
switch (cmd) {
|
|
case SSL_CTRL_GET_READ_AHEAD:
|
|
return (ctx->read_ahead);
|
|
case SSL_CTRL_SET_READ_AHEAD:
|
|
l = ctx->read_ahead;
|
|
ctx->read_ahead = larg;
|
|
return (l);
|
|
|
|
case SSL_CTRL_SET_MSG_CALLBACK_ARG:
|
|
ctx->msg_callback_arg = parg;
|
|
return 1;
|
|
|
|
case SSL_CTRL_GET_MAX_CERT_LIST:
|
|
return (ctx->max_cert_list);
|
|
case SSL_CTRL_SET_MAX_CERT_LIST:
|
|
l = ctx->max_cert_list;
|
|
ctx->max_cert_list = larg;
|
|
return (l);
|
|
|
|
case SSL_CTRL_SET_SESS_CACHE_SIZE:
|
|
l = ctx->session_cache_size;
|
|
ctx->session_cache_size = larg;
|
|
return (l);
|
|
case SSL_CTRL_GET_SESS_CACHE_SIZE:
|
|
return (ctx->session_cache_size);
|
|
case SSL_CTRL_SET_SESS_CACHE_MODE:
|
|
l = ctx->session_cache_mode;
|
|
ctx->session_cache_mode = larg;
|
|
return (l);
|
|
case SSL_CTRL_GET_SESS_CACHE_MODE:
|
|
return (ctx->session_cache_mode);
|
|
|
|
case SSL_CTRL_SESS_NUMBER:
|
|
return (lh_SSL_SESSION_num_items(ctx->sessions));
|
|
case SSL_CTRL_SESS_CONNECT:
|
|
return (ctx->stats.sess_connect);
|
|
case SSL_CTRL_SESS_CONNECT_GOOD:
|
|
return (ctx->stats.sess_connect_good);
|
|
case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
|
|
return (ctx->stats.sess_connect_renegotiate);
|
|
case SSL_CTRL_SESS_ACCEPT:
|
|
return (ctx->stats.sess_accept);
|
|
case SSL_CTRL_SESS_ACCEPT_GOOD:
|
|
return (ctx->stats.sess_accept_good);
|
|
case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
|
|
return (ctx->stats.sess_accept_renegotiate);
|
|
case SSL_CTRL_SESS_HIT:
|
|
return (ctx->stats.sess_hit);
|
|
case SSL_CTRL_SESS_CB_HIT:
|
|
return (ctx->stats.sess_cb_hit);
|
|
case SSL_CTRL_SESS_MISSES:
|
|
return (ctx->stats.sess_miss);
|
|
case SSL_CTRL_SESS_TIMEOUTS:
|
|
return (ctx->stats.sess_timeout);
|
|
case SSL_CTRL_SESS_CACHE_FULL:
|
|
return (ctx->stats.sess_cache_full);
|
|
case SSL_CTRL_OPTIONS:
|
|
return (ctx->options |= larg);
|
|
case SSL_CTRL_CLEAR_OPTIONS:
|
|
return (ctx->options &= ~larg);
|
|
case SSL_CTRL_MODE:
|
|
return (ctx->mode |= larg);
|
|
case SSL_CTRL_CLEAR_MODE:
|
|
return (ctx->mode &= ~larg);
|
|
case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
|
|
if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
|
|
return 0;
|
|
ctx->max_send_fragment = larg;
|
|
return 1;
|
|
case SSL_CTRL_CERT_FLAGS:
|
|
return (ctx->cert->cert_flags |= larg);
|
|
case SSL_CTRL_CLEAR_CERT_FLAGS:
|
|
return (ctx->cert->cert_flags &= ~larg);
|
|
default:
|
|
return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
|
|
}
|
|
}
|
|
|
|
long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
|
|
{
|
|
switch (cmd) {
|
|
case SSL_CTRL_SET_MSG_CALLBACK:
|
|
ctx->msg_callback = (void (*)
|
|
(int write_p, int version, int content_type,
|
|
const void *buf, size_t len, SSL *ssl,
|
|
void *arg))(fp);
|
|
return 1;
|
|
|
|
default:
|
|
return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
|
|
}
|
|
}
|
|
|
|
int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
|
|
{
|
|
long l;
|
|
|
|
l = a->id - b->id;
|
|
if (l == 0L)
|
|
return (0);
|
|
else
|
|
return ((l > 0) ? 1 : -1);
|
|
}
|
|
|
|
int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
|
|
const SSL_CIPHER *const *bp)
|
|
{
|
|
long l;
|
|
|
|
l = (*ap)->id - (*bp)->id;
|
|
if (l == 0L)
|
|
return (0);
|
|
else
|
|
return ((l > 0) ? 1 : -1);
|
|
}
|
|
|
|
/** return a STACK of the ciphers available for the SSL and in order of
|
|
* preference */
|
|
STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
|
|
{
|
|
if (s != NULL) {
|
|
if (s->cipher_list != NULL) {
|
|
return (s->cipher_list);
|
|
} else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
|
|
return (s->ctx->cipher_list);
|
|
}
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
|
|
{
|
|
if ((s == NULL) || (s->session == NULL) || !s->server)
|
|
return NULL;
|
|
return s->session->ciphers;
|
|
}
|
|
|
|
STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
|
|
int i;
|
|
ciphers = SSL_get_ciphers(s);
|
|
if (!ciphers)
|
|
return NULL;
|
|
ssl_set_client_disabled(s);
|
|
for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
|
|
const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
|
|
if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
|
|
if (!sk)
|
|
sk = sk_SSL_CIPHER_new_null();
|
|
if (!sk)
|
|
return NULL;
|
|
if (!sk_SSL_CIPHER_push(sk, c)) {
|
|
sk_SSL_CIPHER_free(sk);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
return sk;
|
|
}
|
|
|
|
/** return a STACK of the ciphers available for the SSL and in order of
|
|
* algorithm id */
|
|
STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
|
|
{
|
|
if (s != NULL) {
|
|
if (s->cipher_list_by_id != NULL) {
|
|
return (s->cipher_list_by_id);
|
|
} else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
|
|
return (s->ctx->cipher_list_by_id);
|
|
}
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/** The old interface to get the same thing as SSL_get_ciphers() */
|
|
const char *SSL_get_cipher_list(const SSL *s, int n)
|
|
{
|
|
SSL_CIPHER *c;
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
if (s == NULL)
|
|
return (NULL);
|
|
sk = SSL_get_ciphers(s);
|
|
if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
|
|
return (NULL);
|
|
c = sk_SSL_CIPHER_value(sk, n);
|
|
if (c == NULL)
|
|
return (NULL);
|
|
return (c->name);
|
|
}
|
|
|
|
/** specify the ciphers to be used by default by the SSL_CTX */
|
|
int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
|
|
&ctx->cipher_list_by_id, str, ctx->cert);
|
|
/*
|
|
* ssl_create_cipher_list may return an empty stack if it was unable to
|
|
* find a cipher matching the given rule string (for example if the rule
|
|
* string specifies a cipher which has been disabled). This is not an
|
|
* error as far as ssl_create_cipher_list is concerned, and hence
|
|
* ctx->cipher_list and ctx->cipher_list_by_id has been updated.
|
|
*/
|
|
if (sk == NULL)
|
|
return 0;
|
|
else if (sk_SSL_CIPHER_num(sk) == 0) {
|
|
SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/** specify the ciphers to be used by the SSL */
|
|
int SSL_set_cipher_list(SSL *s, const char *str)
|
|
{
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
|
|
sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
|
|
&s->cipher_list_by_id, str, s->cert);
|
|
/* see comment in SSL_CTX_set_cipher_list */
|
|
if (sk == NULL)
|
|
return 0;
|
|
else if (sk_SSL_CIPHER_num(sk) == 0) {
|
|
SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* works well for SSLv2, not so good for SSLv3 */
|
|
char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
|
|
{
|
|
char *p;
|
|
STACK_OF(SSL_CIPHER) *sk;
|
|
SSL_CIPHER *c;
|
|
int i;
|
|
|
|
if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
|
|
return (NULL);
|
|
|
|
p = buf;
|
|
sk = s->session->ciphers;
|
|
|
|
if (sk_SSL_CIPHER_num(sk) == 0)
|
|
return NULL;
|
|
|
|
for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
|
|
int n;
|
|
|
|
c = sk_SSL_CIPHER_value(sk, i);
|
|
n = strlen(c->name);
|
|
if (n + 1 > len) {
|
|
if (p != buf)
|
|
--p;
|
|
*p = '\0';
|
|
return buf;
|
|
}
|
|
strcpy(p, c->name);
|
|
p += n;
|
|
*(p++) = ':';
|
|
len -= n + 1;
|
|
}
|
|
p[-1] = '\0';
|
|
return (buf);
|
|
}
|
|
|
|
/** return a servername extension value if provided in Client Hello, or NULL.
|
|
* So far, only host_name types are defined (RFC 3546).
|
|
*/
|
|
|
|
const char *SSL_get_servername(const SSL *s, const int type)
|
|
{
|
|
if (type != TLSEXT_NAMETYPE_host_name)
|
|
return NULL;
|
|
|
|
return s->session && !s->tlsext_hostname ?
|
|
s->session->tlsext_hostname : s->tlsext_hostname;
|
|
}
|
|
|
|
int SSL_get_servername_type(const SSL *s)
|
|
{
|
|
if (s->session
|
|
&& (!s->tlsext_hostname ? s->session->
|
|
tlsext_hostname : s->tlsext_hostname))
|
|
return TLSEXT_NAMETYPE_host_name;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* SSL_select_next_proto implements the standard protocol selection. It is
|
|
* expected that this function is called from the callback set by
|
|
* SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
|
|
* vector of 8-bit, length prefixed byte strings. The length byte itself is
|
|
* not included in the length. A byte string of length 0 is invalid. No byte
|
|
* string may be truncated. The current, but experimental algorithm for
|
|
* selecting the protocol is: 1) If the server doesn't support NPN then this
|
|
* is indicated to the callback. In this case, the client application has to
|
|
* abort the connection or have a default application level protocol. 2) If
|
|
* the server supports NPN, but advertises an empty list then the client
|
|
* selects the first protcol in its list, but indicates via the API that this
|
|
* fallback case was enacted. 3) Otherwise, the client finds the first
|
|
* protocol in the server's list that it supports and selects this protocol.
|
|
* This is because it's assumed that the server has better information about
|
|
* which protocol a client should use. 4) If the client doesn't support any
|
|
* of the server's advertised protocols, then this is treated the same as
|
|
* case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
|
|
* found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
|
|
*/
|
|
int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
|
|
const unsigned char *server,
|
|
unsigned int server_len,
|
|
const unsigned char *client,
|
|
unsigned int client_len)
|
|
{
|
|
unsigned int i, j;
|
|
const unsigned char *result;
|
|
int status = OPENSSL_NPN_UNSUPPORTED;
|
|
|
|
/*
|
|
* For each protocol in server preference order, see if we support it.
|
|
*/
|
|
for (i = 0; i < server_len;) {
|
|
for (j = 0; j < client_len;) {
|
|
if (server[i] == client[j] &&
|
|
memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
|
|
/* We found a match */
|
|
result = &server[i];
|
|
status = OPENSSL_NPN_NEGOTIATED;
|
|
goto found;
|
|
}
|
|
j += client[j];
|
|
j++;
|
|
}
|
|
i += server[i];
|
|
i++;
|
|
}
|
|
|
|
/* There's no overlap between our protocols and the server's list. */
|
|
result = client;
|
|
status = OPENSSL_NPN_NO_OVERLAP;
|
|
|
|
found:
|
|
*out = (unsigned char *)result + 1;
|
|
*outlen = result[0];
|
|
return status;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_NEXTPROTONEG
|
|
/*
|
|
* SSL_get0_next_proto_negotiated sets *data and *len to point to the
|
|
* client's requested protocol for this connection and returns 0. If the
|
|
* client didn't request any protocol, then *data is set to NULL. Note that
|
|
* the client can request any protocol it chooses. The value returned from
|
|
* this function need not be a member of the list of supported protocols
|
|
* provided by the callback.
|
|
*/
|
|
void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
|
|
unsigned *len)
|
|
{
|
|
*data = s->next_proto_negotiated;
|
|
if (!*data) {
|
|
*len = 0;
|
|
} else {
|
|
*len = s->next_proto_negotiated_len;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
|
|
* a TLS server needs a list of supported protocols for Next Protocol
|
|
* Negotiation. The returned list must be in wire format. The list is
|
|
* returned by setting |out| to point to it and |outlen| to its length. This
|
|
* memory will not be modified, but one should assume that the SSL* keeps a
|
|
* reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
|
|
* wishes to advertise. Otherwise, no such extension will be included in the
|
|
* ServerHello.
|
|
*/
|
|
void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
|
|
int (*cb) (SSL *ssl,
|
|
const unsigned char
|
|
**out,
|
|
unsigned int *outlen,
|
|
void *arg), void *arg)
|
|
{
|
|
ctx->next_protos_advertised_cb = cb;
|
|
ctx->next_protos_advertised_cb_arg = arg;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
|
|
* client needs to select a protocol from the server's provided list. |out|
|
|
* must be set to point to the selected protocol (which may be within |in|).
|
|
* The length of the protocol name must be written into |outlen|. The
|
|
* server's advertised protocols are provided in |in| and |inlen|. The
|
|
* callback can assume that |in| is syntactically valid. The client must
|
|
* select a protocol. It is fatal to the connection if this callback returns
|
|
* a value other than SSL_TLSEXT_ERR_OK.
|
|
*/
|
|
void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
|
|
int (*cb) (SSL *s, unsigned char **out,
|
|
unsigned char *outlen,
|
|
const unsigned char *in,
|
|
unsigned int inlen,
|
|
void *arg), void *arg)
|
|
{
|
|
ctx->next_proto_select_cb = cb;
|
|
ctx->next_proto_select_cb_arg = arg;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
|
|
* |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
|
* length-prefixed strings). Returns 0 on success.
|
|
*/
|
|
int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
|
|
unsigned protos_len)
|
|
{
|
|
OPENSSL_free(ctx->alpn_client_proto_list);
|
|
ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
|
|
if (!ctx->alpn_client_proto_list)
|
|
return 1;
|
|
memcpy(ctx->alpn_client_proto_list, protos, protos_len);
|
|
ctx->alpn_client_proto_list_len = protos_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
|
|
* |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
|
|
* length-prefixed strings). Returns 0 on success.
|
|
*/
|
|
int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
|
|
unsigned protos_len)
|
|
{
|
|
OPENSSL_free(ssl->alpn_client_proto_list);
|
|
ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
|
|
if (!ssl->alpn_client_proto_list)
|
|
return 1;
|
|
memcpy(ssl->alpn_client_proto_list, protos, protos_len);
|
|
ssl->alpn_client_proto_list_len = protos_len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
|
|
* called during ClientHello processing in order to select an ALPN protocol
|
|
* from the client's list of offered protocols.
|
|
*/
|
|
void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
|
|
int (*cb) (SSL *ssl,
|
|
const unsigned char **out,
|
|
unsigned char *outlen,
|
|
const unsigned char *in,
|
|
unsigned int inlen,
|
|
void *arg), void *arg)
|
|
{
|
|
ctx->alpn_select_cb = cb;
|
|
ctx->alpn_select_cb_arg = arg;
|
|
}
|
|
|
|
/*
|
|
* SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
|
|
* |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
|
|
* (not including the leading length-prefix byte). If the server didn't
|
|
* respond with a negotiated protocol then |*len| will be zero.
|
|
*/
|
|
void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
|
|
unsigned *len)
|
|
{
|
|
*data = NULL;
|
|
if (ssl->s3)
|
|
*data = ssl->s3->alpn_selected;
|
|
if (*data == NULL)
|
|
*len = 0;
|
|
else
|
|
*len = ssl->s3->alpn_selected_len;
|
|
}
|
|
|
|
|
|
int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
|
|
const char *label, size_t llen,
|
|
const unsigned char *p, size_t plen,
|
|
int use_context)
|
|
{
|
|
if (s->version < TLS1_VERSION)
|
|
return -1;
|
|
|
|
return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
|
|
llen, p, plen,
|
|
use_context);
|
|
}
|
|
|
|
static unsigned long ssl_session_hash(const SSL_SESSION *a)
|
|
{
|
|
unsigned long l;
|
|
|
|
l = (unsigned long)
|
|
((unsigned int)a->session_id[0]) |
|
|
((unsigned int)a->session_id[1] << 8L) |
|
|
((unsigned long)a->session_id[2] << 16L) |
|
|
((unsigned long)a->session_id[3] << 24L);
|
|
return (l);
|
|
}
|
|
|
|
/*
|
|
* NB: If this function (or indeed the hash function which uses a sort of
|
|
* coarser function than this one) is changed, ensure
|
|
* SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
|
|
* being able to construct an SSL_SESSION that will collide with any existing
|
|
* session with a matching session ID.
|
|
*/
|
|
static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
|
|
{
|
|
if (a->ssl_version != b->ssl_version)
|
|
return (1);
|
|
if (a->session_id_length != b->session_id_length)
|
|
return (1);
|
|
return (memcmp(a->session_id, b->session_id, a->session_id_length));
|
|
}
|
|
|
|
/*
|
|
* These wrapper functions should remain rather than redeclaring
|
|
* SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
|
|
* variable. The reason is that the functions aren't static, they're exposed
|
|
* via ssl.h.
|
|
*/
|
|
static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
|
|
static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
|
|
|
|
SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
|
|
{
|
|
SSL_CTX *ret = NULL;
|
|
|
|
if (meth == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
|
|
return (NULL);
|
|
}
|
|
|
|
if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
|
|
return NULL;
|
|
}
|
|
|
|
if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
|
|
goto err;
|
|
}
|
|
ret = OPENSSL_zalloc(sizeof(*ret));
|
|
if (ret == NULL)
|
|
goto err;
|
|
|
|
ret->method = meth;
|
|
ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
|
|
ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
|
|
/* We take the system default. */
|
|
ret->session_timeout = meth->get_timeout();
|
|
ret->references = 1;
|
|
ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
|
|
ret->verify_mode = SSL_VERIFY_NONE;
|
|
if ((ret->cert = ssl_cert_new()) == NULL)
|
|
goto err;
|
|
|
|
ret->sessions = lh_SSL_SESSION_new();
|
|
if (ret->sessions == NULL)
|
|
goto err;
|
|
ret->cert_store = X509_STORE_new();
|
|
if (ret->cert_store == NULL)
|
|
goto err;
|
|
|
|
if (!ssl_create_cipher_list(ret->method,
|
|
&ret->cipher_list, &ret->cipher_list_by_id,
|
|
SSL_DEFAULT_CIPHER_LIST, ret->cert)
|
|
|| sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
|
|
goto err2;
|
|
}
|
|
|
|
ret->param = X509_VERIFY_PARAM_new();
|
|
if (!ret->param)
|
|
goto err;
|
|
|
|
if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
|
|
goto err2;
|
|
}
|
|
if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
|
|
SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
|
|
goto err2;
|
|
}
|
|
|
|
if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
|
|
goto err;
|
|
|
|
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
|
|
|
|
/* No compression for DTLS */
|
|
if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
|
|
ret->comp_methods = SSL_COMP_get_compression_methods();
|
|
|
|
ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
|
|
|
|
/* Setup RFC4507 ticket keys */
|
|
if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
|
|
|| (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
|
|
|| (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
|
|
ret->options |= SSL_OP_NO_TICKET;
|
|
|
|
#ifndef OPENSSL_NO_SRP
|
|
if (!SSL_CTX_SRP_CTX_init(ret))
|
|
goto err;
|
|
#endif
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
# ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
|
|
# define eng_strx(x) #x
|
|
# define eng_str(x) eng_strx(x)
|
|
/* Use specific client engine automatically... ignore errors */
|
|
{
|
|
ENGINE *eng;
|
|
eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
|
if (!eng) {
|
|
ERR_clear_error();
|
|
ENGINE_load_builtin_engines();
|
|
eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
|
|
}
|
|
if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
|
|
ERR_clear_error();
|
|
}
|
|
# endif
|
|
#endif
|
|
/*
|
|
* Default is to connect to non-RI servers. When RI is more widely
|
|
* deployed might change this.
|
|
*/
|
|
ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
|
|
|
|
return (ret);
|
|
err:
|
|
SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
|
|
err2:
|
|
SSL_CTX_free(ret);
|
|
return (NULL);
|
|
}
|
|
|
|
void SSL_CTX_free(SSL_CTX *a)
|
|
{
|
|
int i;
|
|
|
|
if (a == NULL)
|
|
return;
|
|
|
|
i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
|
|
#ifdef REF_PRINT
|
|
REF_PRINT("SSL_CTX", a);
|
|
#endif
|
|
if (i > 0)
|
|
return;
|
|
#ifdef REF_CHECK
|
|
if (i < 0) {
|
|
fprintf(stderr, "SSL_CTX_free, bad reference count\n");
|
|
abort(); /* ok */
|
|
}
|
|
#endif
|
|
|
|
X509_VERIFY_PARAM_free(a->param);
|
|
|
|
/*
|
|
* Free internal session cache. However: the remove_cb() may reference
|
|
* the ex_data of SSL_CTX, thus the ex_data store can only be removed
|
|
* after the sessions were flushed.
|
|
* As the ex_data handling routines might also touch the session cache,
|
|
* the most secure solution seems to be: empty (flush) the cache, then
|
|
* free ex_data, then finally free the cache.
|
|
* (See ticket [openssl.org #212].)
|
|
*/
|
|
if (a->sessions != NULL)
|
|
SSL_CTX_flush_sessions(a, 0);
|
|
|
|
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
|
|
lh_SSL_SESSION_free(a->sessions);
|
|
X509_STORE_free(a->cert_store);
|
|
sk_SSL_CIPHER_free(a->cipher_list);
|
|
sk_SSL_CIPHER_free(a->cipher_list_by_id);
|
|
ssl_cert_free(a->cert);
|
|
sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
|
|
sk_X509_pop_free(a->extra_certs, X509_free);
|
|
a->comp_methods = NULL;
|
|
#ifndef OPENSSL_NO_SRTP
|
|
sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
|
|
#endif
|
|
#ifndef OPENSSL_NO_SRP
|
|
SSL_CTX_SRP_CTX_free(a);
|
|
#endif
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
if (a->client_cert_engine)
|
|
ENGINE_finish(a->client_cert_engine);
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
OPENSSL_free(a->tlsext_ecpointformatlist);
|
|
OPENSSL_free(a->tlsext_ellipticcurvelist);
|
|
#endif
|
|
OPENSSL_free(a->alpn_client_proto_list);
|
|
|
|
OPENSSL_free(a);
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
|
|
{
|
|
ctx->default_passwd_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
|
|
{
|
|
ctx->default_passwd_callback_userdata = u;
|
|
}
|
|
|
|
void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
|
|
int (*cb) (X509_STORE_CTX *, void *),
|
|
void *arg)
|
|
{
|
|
ctx->app_verify_callback = cb;
|
|
ctx->app_verify_arg = arg;
|
|
}
|
|
|
|
void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
|
|
int (*cb) (int, X509_STORE_CTX *))
|
|
{
|
|
ctx->verify_mode = mode;
|
|
ctx->default_verify_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
|
|
{
|
|
X509_VERIFY_PARAM_set_depth(ctx->param, depth);
|
|
}
|
|
|
|
void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
|
|
void *arg)
|
|
{
|
|
ssl_cert_set_cert_cb(c->cert, cb, arg);
|
|
}
|
|
|
|
void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
|
|
{
|
|
ssl_cert_set_cert_cb(s->cert, cb, arg);
|
|
}
|
|
|
|
void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
|
|
{
|
|
CERT_PKEY *cpk;
|
|
CERT *c = s->cert;
|
|
uint32_t *pvalid = s->s3->tmp.valid_flags;
|
|
int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
|
|
int rsa_enc_export, dh_rsa_export, dh_dsa_export;
|
|
int rsa_tmp_export, dh_tmp_export, kl;
|
|
unsigned long mask_k, mask_a, emask_k, emask_a;
|
|
#ifndef OPENSSL_NO_EC
|
|
int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
|
|
int have_ecdh_tmp, ecdh_ok;
|
|
X509 *x = NULL;
|
|
EVP_PKEY *ecc_pkey = NULL;
|
|
int pk_nid = 0, md_nid = 0;
|
|
#endif
|
|
if (c == NULL)
|
|
return;
|
|
|
|
kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
|
|
|
|
#ifndef OPENSSL_NO_RSA
|
|
rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
|
|
rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
|
|
(rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
|
|
#else
|
|
rsa_tmp = rsa_tmp_export = 0;
|
|
#endif
|
|
#ifndef OPENSSL_NO_DH
|
|
dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
|
|
dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
|
|
(dh_tmp
|
|
&& DH_size(c->dh_tmp) * 8 <= kl));
|
|
#else
|
|
dh_tmp = dh_tmp_export = 0;
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
|
|
#endif
|
|
cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
|
|
rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
|
|
rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
|
|
cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
|
|
rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
|
|
cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
|
|
dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
|
|
cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
|
|
dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
|
|
dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
|
|
cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
|
|
dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
|
|
dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
|
|
cpk = &(c->pkeys[SSL_PKEY_ECC]);
|
|
#ifndef OPENSSL_NO_EC
|
|
have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
|
|
#endif
|
|
mask_k = 0;
|
|
mask_a = 0;
|
|
emask_k = 0;
|
|
emask_a = 0;
|
|
|
|
#ifdef CIPHER_DEBUG
|
|
fprintf(stderr,
|
|
"rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
|
|
rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
|
|
rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
|
|
#endif
|
|
|
|
cpk = &(c->pkeys[SSL_PKEY_GOST01]);
|
|
if (cpk->x509 != NULL && cpk->privatekey != NULL) {
|
|
mask_k |= SSL_kGOST;
|
|
mask_a |= SSL_aGOST01;
|
|
}
|
|
|
|
if (rsa_enc || (rsa_tmp && rsa_sign))
|
|
mask_k |= SSL_kRSA;
|
|
if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
|
|
emask_k |= SSL_kRSA;
|
|
|
|
if (dh_tmp_export)
|
|
emask_k |= SSL_kDHE;
|
|
|
|
if (dh_tmp)
|
|
mask_k |= SSL_kDHE;
|
|
|
|
if (dh_rsa)
|
|
mask_k |= SSL_kDHr;
|
|
if (dh_rsa_export)
|
|
emask_k |= SSL_kDHr;
|
|
|
|
if (dh_dsa)
|
|
mask_k |= SSL_kDHd;
|
|
if (dh_dsa_export)
|
|
emask_k |= SSL_kDHd;
|
|
|
|
if (mask_k & (SSL_kDHr | SSL_kDHd))
|
|
mask_a |= SSL_aDH;
|
|
|
|
if (rsa_enc || rsa_sign) {
|
|
mask_a |= SSL_aRSA;
|
|
emask_a |= SSL_aRSA;
|
|
}
|
|
|
|
if (dsa_sign) {
|
|
mask_a |= SSL_aDSS;
|
|
emask_a |= SSL_aDSS;
|
|
}
|
|
|
|
mask_a |= SSL_aNULL;
|
|
emask_a |= SSL_aNULL;
|
|
|
|
/*
|
|
* An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
|
|
* depending on the key usage extension.
|
|
*/
|
|
#ifndef OPENSSL_NO_EC
|
|
if (have_ecc_cert) {
|
|
uint32_t ex_kusage;
|
|
cpk = &c->pkeys[SSL_PKEY_ECC];
|
|
x = cpk->x509;
|
|
ex_kusage = X509_get_key_usage(x);
|
|
ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
|
|
ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
|
|
if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
|
|
ecdsa_ok = 0;
|
|
ecc_pkey = X509_get_pubkey(x);
|
|
ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
|
|
EVP_PKEY_free(ecc_pkey);
|
|
OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
|
|
if (ecdh_ok) {
|
|
|
|
if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
|
|
mask_k |= SSL_kECDHr;
|
|
mask_a |= SSL_aECDH;
|
|
if (ecc_pkey_size <= 163) {
|
|
emask_k |= SSL_kECDHr;
|
|
emask_a |= SSL_aECDH;
|
|
}
|
|
}
|
|
|
|
if (pk_nid == NID_X9_62_id_ecPublicKey) {
|
|
mask_k |= SSL_kECDHe;
|
|
mask_a |= SSL_aECDH;
|
|
if (ecc_pkey_size <= 163) {
|
|
emask_k |= SSL_kECDHe;
|
|
emask_a |= SSL_aECDH;
|
|
}
|
|
}
|
|
}
|
|
if (ecdsa_ok) {
|
|
mask_a |= SSL_aECDSA;
|
|
emask_a |= SSL_aECDSA;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
if (have_ecdh_tmp) {
|
|
mask_k |= SSL_kECDHE;
|
|
emask_k |= SSL_kECDHE;
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
mask_k |= SSL_kPSK;
|
|
mask_a |= SSL_aPSK;
|
|
emask_k |= SSL_kPSK;
|
|
emask_a |= SSL_aPSK;
|
|
if (mask_k & SSL_kRSA)
|
|
mask_k |= SSL_kRSAPSK;
|
|
if (mask_k & SSL_kDHE)
|
|
mask_k |= SSL_kDHEPSK;
|
|
if (mask_k & SSL_kECDHE)
|
|
mask_k |= SSL_kECDHEPSK;
|
|
#endif
|
|
|
|
s->s3->tmp.mask_k = mask_k;
|
|
s->s3->tmp.mask_a = mask_a;
|
|
s->s3->tmp.export_mask_k = emask_k;
|
|
s->s3->tmp.export_mask_a = emask_a;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
|
|
int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
|
|
{
|
|
unsigned long alg_k, alg_a;
|
|
EVP_PKEY *pkey = NULL;
|
|
int keysize = 0;
|
|
int md_nid = 0, pk_nid = 0;
|
|
const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
|
|
uint32_t ex_kusage = X509_get_key_usage(x);
|
|
|
|
alg_k = cs->algorithm_mkey;
|
|
alg_a = cs->algorithm_auth;
|
|
|
|
if (SSL_C_IS_EXPORT(cs)) {
|
|
/* ECDH key length in export ciphers must be <= 163 bits */
|
|
pkey = X509_get_pubkey(x);
|
|
if (pkey == NULL)
|
|
return 0;
|
|
keysize = EVP_PKEY_bits(pkey);
|
|
EVP_PKEY_free(pkey);
|
|
if (keysize > 163)
|
|
return 0;
|
|
}
|
|
|
|
OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
|
|
|
|
if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
|
|
/* key usage, if present, must allow key agreement */
|
|
if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
|
|
SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
|
SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
|
|
return 0;
|
|
}
|
|
if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
|
|
/* signature alg must be ECDSA */
|
|
if (pk_nid != NID_X9_62_id_ecPublicKey) {
|
|
SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
|
SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
|
|
return 0;
|
|
}
|
|
}
|
|
if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
|
|
/* signature alg must be RSA */
|
|
|
|
if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
|
|
SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
|
SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
if (alg_a & SSL_aECDSA) {
|
|
/* key usage, if present, must allow signing */
|
|
if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
|
|
SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
|
|
SSL_R_ECC_CERT_NOT_FOR_SIGNING);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1; /* all checks are ok */
|
|
}
|
|
|
|
#endif
|
|
|
|
static int ssl_get_server_cert_index(const SSL *s)
|
|
{
|
|
int idx;
|
|
idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
|
|
if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
|
|
idx = SSL_PKEY_RSA_SIGN;
|
|
if (idx == -1)
|
|
SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
|
|
return idx;
|
|
}
|
|
|
|
CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
|
|
{
|
|
CERT *c;
|
|
int i;
|
|
|
|
c = s->cert;
|
|
if (!s->s3 || !s->s3->tmp.new_cipher)
|
|
return NULL;
|
|
ssl_set_masks(s, s->s3->tmp.new_cipher);
|
|
|
|
#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
|
|
/*
|
|
* Broken protocol test: return last used certificate: which may mismatch
|
|
* the one expected.
|
|
*/
|
|
if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
|
|
return c->key;
|
|
#endif
|
|
|
|
i = ssl_get_server_cert_index(s);
|
|
|
|
/* This may or may not be an error. */
|
|
if (i < 0)
|
|
return NULL;
|
|
|
|
/* May be NULL. */
|
|
return &c->pkeys[i];
|
|
}
|
|
|
|
EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
|
|
const EVP_MD **pmd)
|
|
{
|
|
unsigned long alg_a;
|
|
CERT *c;
|
|
int idx = -1;
|
|
|
|
alg_a = cipher->algorithm_auth;
|
|
c = s->cert;
|
|
|
|
#ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
|
|
/*
|
|
* Broken protocol test: use last key: which may mismatch the one
|
|
* expected.
|
|
*/
|
|
if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
|
|
idx = c->key - c->pkeys;
|
|
else
|
|
#endif
|
|
|
|
if ((alg_a & SSL_aDSS) &&
|
|
(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
|
|
idx = SSL_PKEY_DSA_SIGN;
|
|
else if (alg_a & SSL_aRSA) {
|
|
if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
|
|
idx = SSL_PKEY_RSA_SIGN;
|
|
else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
|
|
idx = SSL_PKEY_RSA_ENC;
|
|
} else if ((alg_a & SSL_aECDSA) &&
|
|
(c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
|
|
idx = SSL_PKEY_ECC;
|
|
if (idx == -1) {
|
|
SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
|
|
return (NULL);
|
|
}
|
|
if (pmd)
|
|
*pmd = s->s3->tmp.md[idx];
|
|
return c->pkeys[idx].privatekey;
|
|
}
|
|
|
|
int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
|
|
size_t *serverinfo_length)
|
|
{
|
|
CERT *c = NULL;
|
|
int i = 0;
|
|
*serverinfo_length = 0;
|
|
|
|
c = s->cert;
|
|
i = ssl_get_server_cert_index(s);
|
|
|
|
if (i == -1)
|
|
return 0;
|
|
if (c->pkeys[i].serverinfo == NULL)
|
|
return 0;
|
|
|
|
*serverinfo = c->pkeys[i].serverinfo;
|
|
*serverinfo_length = c->pkeys[i].serverinfo_length;
|
|
return 1;
|
|
}
|
|
|
|
void ssl_update_cache(SSL *s, int mode)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* If the session_id_length is 0, we are not supposed to cache it, and it
|
|
* would be rather hard to do anyway :-)
|
|
*/
|
|
if (s->session->session_id_length == 0)
|
|
return;
|
|
|
|
i = s->session_ctx->session_cache_mode;
|
|
if ((i & mode) && (!s->hit)
|
|
&& ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
|
|
|| SSL_CTX_add_session(s->session_ctx, s->session))
|
|
&& (s->session_ctx->new_session_cb != NULL)) {
|
|
CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
|
|
if (!s->session_ctx->new_session_cb(s, s->session))
|
|
SSL_SESSION_free(s->session);
|
|
}
|
|
|
|
/* auto flush every 255 connections */
|
|
if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
|
|
if ((((mode & SSL_SESS_CACHE_CLIENT)
|
|
? s->session_ctx->stats.sess_connect_good
|
|
: s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
|
|
SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
|
|
}
|
|
}
|
|
}
|
|
|
|
const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
|
|
{
|
|
return ctx->method;
|
|
}
|
|
|
|
const SSL_METHOD *SSL_get_ssl_method(SSL *s)
|
|
{
|
|
return (s->method);
|
|
}
|
|
|
|
int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
|
|
{
|
|
int conn = -1;
|
|
int ret = 1;
|
|
|
|
if (s->method != meth) {
|
|
if (s->handshake_func != NULL)
|
|
conn = (s->handshake_func == s->method->ssl_connect);
|
|
|
|
if (s->method->version == meth->version)
|
|
s->method = meth;
|
|
else {
|
|
s->method->ssl_free(s);
|
|
s->method = meth;
|
|
ret = s->method->ssl_new(s);
|
|
}
|
|
|
|
if (conn == 1)
|
|
s->handshake_func = meth->ssl_connect;
|
|
else if (conn == 0)
|
|
s->handshake_func = meth->ssl_accept;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
int SSL_get_error(const SSL *s, int i)
|
|
{
|
|
int reason;
|
|
unsigned long l;
|
|
BIO *bio;
|
|
|
|
if (i > 0)
|
|
return (SSL_ERROR_NONE);
|
|
|
|
/*
|
|
* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
|
|
* where we do encode the error
|
|
*/
|
|
if ((l = ERR_peek_error()) != 0) {
|
|
if (ERR_GET_LIB(l) == ERR_LIB_SYS)
|
|
return (SSL_ERROR_SYSCALL);
|
|
else
|
|
return (SSL_ERROR_SSL);
|
|
}
|
|
|
|
if ((i < 0) && SSL_want_read(s)) {
|
|
bio = SSL_get_rbio(s);
|
|
if (BIO_should_read(bio))
|
|
return (SSL_ERROR_WANT_READ);
|
|
else if (BIO_should_write(bio))
|
|
/*
|
|
* This one doesn't make too much sense ... We never try to write
|
|
* to the rbio, and an application program where rbio and wbio
|
|
* are separate couldn't even know what it should wait for.
|
|
* However if we ever set s->rwstate incorrectly (so that we have
|
|
* SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
|
|
* wbio *are* the same, this test works around that bug; so it
|
|
* might be safer to keep it.
|
|
*/
|
|
return (SSL_ERROR_WANT_WRITE);
|
|
else if (BIO_should_io_special(bio)) {
|
|
reason = BIO_get_retry_reason(bio);
|
|
if (reason == BIO_RR_CONNECT)
|
|
return (SSL_ERROR_WANT_CONNECT);
|
|
else if (reason == BIO_RR_ACCEPT)
|
|
return (SSL_ERROR_WANT_ACCEPT);
|
|
else
|
|
return (SSL_ERROR_SYSCALL); /* unknown */
|
|
}
|
|
}
|
|
|
|
if ((i < 0) && SSL_want_write(s)) {
|
|
bio = SSL_get_wbio(s);
|
|
if (BIO_should_write(bio))
|
|
return (SSL_ERROR_WANT_WRITE);
|
|
else if (BIO_should_read(bio))
|
|
/*
|
|
* See above (SSL_want_read(s) with BIO_should_write(bio))
|
|
*/
|
|
return (SSL_ERROR_WANT_READ);
|
|
else if (BIO_should_io_special(bio)) {
|
|
reason = BIO_get_retry_reason(bio);
|
|
if (reason == BIO_RR_CONNECT)
|
|
return (SSL_ERROR_WANT_CONNECT);
|
|
else if (reason == BIO_RR_ACCEPT)
|
|
return (SSL_ERROR_WANT_ACCEPT);
|
|
else
|
|
return (SSL_ERROR_SYSCALL);
|
|
}
|
|
}
|
|
if ((i < 0) && SSL_want_x509_lookup(s)) {
|
|
return (SSL_ERROR_WANT_X509_LOOKUP);
|
|
}
|
|
|
|
if (i == 0) {
|
|
if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
|
|
(s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
|
|
return (SSL_ERROR_ZERO_RETURN);
|
|
}
|
|
return (SSL_ERROR_SYSCALL);
|
|
}
|
|
|
|
int SSL_do_handshake(SSL *s)
|
|
{
|
|
int ret = 1;
|
|
|
|
if (s->handshake_func == NULL) {
|
|
SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
|
|
return (-1);
|
|
}
|
|
|
|
s->method->ssl_renegotiate_check(s);
|
|
|
|
if (SSL_in_init(s) || SSL_in_before(s)) {
|
|
ret = s->handshake_func(s);
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
void SSL_set_accept_state(SSL *s)
|
|
{
|
|
s->server = 1;
|
|
s->shutdown = 0;
|
|
ossl_statem_clear(s);
|
|
s->handshake_func = s->method->ssl_accept;
|
|
clear_ciphers(s);
|
|
}
|
|
|
|
void SSL_set_connect_state(SSL *s)
|
|
{
|
|
s->server = 0;
|
|
s->shutdown = 0;
|
|
ossl_statem_clear(s);
|
|
s->handshake_func = s->method->ssl_connect;
|
|
clear_ciphers(s);
|
|
}
|
|
|
|
int ssl_undefined_function(SSL *s)
|
|
{
|
|
SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return (0);
|
|
}
|
|
|
|
int ssl_undefined_void_function(void)
|
|
{
|
|
SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
|
|
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return (0);
|
|
}
|
|
|
|
int ssl_undefined_const_function(const SSL *s)
|
|
{
|
|
SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
|
|
ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return (0);
|
|
}
|
|
|
|
SSL_METHOD *ssl_bad_method(int ver)
|
|
{
|
|
SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
|
|
return (NULL);
|
|
}
|
|
|
|
const char *SSL_get_version(const SSL *s)
|
|
{
|
|
if (s->version == TLS1_2_VERSION)
|
|
return ("TLSv1.2");
|
|
else if (s->version == TLS1_1_VERSION)
|
|
return ("TLSv1.1");
|
|
else if (s->version == TLS1_VERSION)
|
|
return ("TLSv1");
|
|
else if (s->version == SSL3_VERSION)
|
|
return ("SSLv3");
|
|
else if (s->version == DTLS1_BAD_VER)
|
|
return ("DTLSv0.9");
|
|
else if (s->version == DTLS1_VERSION)
|
|
return ("DTLSv1");
|
|
else if (s->version == DTLS1_2_VERSION)
|
|
return ("DTLSv1.2");
|
|
else
|
|
return ("unknown");
|
|
}
|
|
|
|
SSL *SSL_dup(SSL *s)
|
|
{
|
|
STACK_OF(X509_NAME) *sk;
|
|
X509_NAME *xn;
|
|
SSL *ret;
|
|
int i;
|
|
|
|
if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
|
|
return (NULL);
|
|
|
|
ret->version = s->version;
|
|
ret->method = s->method;
|
|
|
|
if (s->session != NULL) {
|
|
/* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
|
|
if (!SSL_copy_session_id(ret, s))
|
|
goto err;
|
|
} else {
|
|
/*
|
|
* No session has been established yet, so we have to expect that
|
|
* s->cert or ret->cert will be changed later -- they should not both
|
|
* point to the same object, and thus we can't use
|
|
* SSL_copy_session_id.
|
|
*/
|
|
|
|
ret->method->ssl_free(ret);
|
|
ret->method = s->method;
|
|
ret->method->ssl_new(ret);
|
|
|
|
if (s->cert != NULL) {
|
|
ssl_cert_free(ret->cert);
|
|
ret->cert = ssl_cert_dup(s->cert);
|
|
if (ret->cert == NULL)
|
|
goto err;
|
|
}
|
|
|
|
if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
|
|
goto err;
|
|
}
|
|
|
|
ret->options = s->options;
|
|
ret->mode = s->mode;
|
|
SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
|
|
SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
|
|
ret->msg_callback = s->msg_callback;
|
|
ret->msg_callback_arg = s->msg_callback_arg;
|
|
SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
|
|
SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
|
|
ret->generate_session_id = s->generate_session_id;
|
|
|
|
SSL_set_info_callback(ret, SSL_get_info_callback(s));
|
|
|
|
ret->debug = s->debug;
|
|
|
|
/* copy app data, a little dangerous perhaps */
|
|
if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
|
|
goto err;
|
|
|
|
/* setup rbio, and wbio */
|
|
if (s->rbio != NULL) {
|
|
if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
|
|
goto err;
|
|
}
|
|
if (s->wbio != NULL) {
|
|
if (s->wbio != s->rbio) {
|
|
if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
|
|
goto err;
|
|
} else
|
|
ret->wbio = ret->rbio;
|
|
}
|
|
ret->rwstate = s->rwstate;
|
|
ret->handshake_func = s->handshake_func;
|
|
ret->server = s->server;
|
|
ret->renegotiate = s->renegotiate;
|
|
ret->new_session = s->new_session;
|
|
ret->quiet_shutdown = s->quiet_shutdown;
|
|
ret->shutdown = s->shutdown;
|
|
ret->statem = s->statem; /* SSL_dup does not really work at any state,
|
|
* though */
|
|
RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
|
|
ret->init_num = 0; /* would have to copy ret->init_buf,
|
|
* ret->init_msg, ret->init_num,
|
|
* ret->init_off */
|
|
ret->hit = s->hit;
|
|
|
|
X509_VERIFY_PARAM_inherit(ret->param, s->param);
|
|
|
|
/* dup the cipher_list and cipher_list_by_id stacks */
|
|
if (s->cipher_list != NULL) {
|
|
if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
|
|
goto err;
|
|
}
|
|
if (s->cipher_list_by_id != NULL)
|
|
if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
|
|
== NULL)
|
|
goto err;
|
|
|
|
/* Dup the client_CA list */
|
|
if (s->client_CA != NULL) {
|
|
if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
|
|
goto err;
|
|
ret->client_CA = sk;
|
|
for (i = 0; i < sk_X509_NAME_num(sk); i++) {
|
|
xn = sk_X509_NAME_value(sk, i);
|
|
if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
|
|
X509_NAME_free(xn);
|
|
goto err;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
|
|
err:
|
|
SSL_free(ret);
|
|
return NULL;
|
|
}
|
|
|
|
void ssl_clear_cipher_ctx(SSL *s)
|
|
{
|
|
if (s->enc_read_ctx != NULL) {
|
|
EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
|
|
OPENSSL_free(s->enc_read_ctx);
|
|
s->enc_read_ctx = NULL;
|
|
}
|
|
if (s->enc_write_ctx != NULL) {
|
|
EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
|
|
OPENSSL_free(s->enc_write_ctx);
|
|
s->enc_write_ctx = NULL;
|
|
}
|
|
#ifndef OPENSSL_NO_COMP
|
|
COMP_CTX_free(s->expand);
|
|
s->expand = NULL;
|
|
COMP_CTX_free(s->compress);
|
|
s->compress = NULL;
|
|
#endif
|
|
}
|
|
|
|
X509 *SSL_get_certificate(const SSL *s)
|
|
{
|
|
if (s->cert != NULL)
|
|
return (s->cert->key->x509);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
EVP_PKEY *SSL_get_privatekey(const SSL *s)
|
|
{
|
|
if (s->cert != NULL)
|
|
return (s->cert->key->privatekey);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
|
|
{
|
|
if (ctx->cert != NULL)
|
|
return ctx->cert->key->x509;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
|
|
{
|
|
if (ctx->cert != NULL)
|
|
return ctx->cert->key->privatekey;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
|
|
{
|
|
if ((s->session != NULL) && (s->session->cipher != NULL))
|
|
return (s->session->cipher);
|
|
return (NULL);
|
|
}
|
|
|
|
const COMP_METHOD *SSL_get_current_compression(SSL *s)
|
|
{
|
|
#ifndef OPENSSL_NO_COMP
|
|
return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
const COMP_METHOD *SSL_get_current_expansion(SSL *s)
|
|
{
|
|
#ifndef OPENSSL_NO_COMP
|
|
return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
int ssl_init_wbio_buffer(SSL *s, int push)
|
|
{
|
|
BIO *bbio;
|
|
|
|
if (s->bbio == NULL) {
|
|
bbio = BIO_new(BIO_f_buffer());
|
|
if (bbio == NULL)
|
|
return (0);
|
|
s->bbio = bbio;
|
|
} else {
|
|
bbio = s->bbio;
|
|
if (s->bbio == s->wbio)
|
|
s->wbio = BIO_pop(s->wbio);
|
|
}
|
|
(void)BIO_reset(bbio);
|
|
/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
|
|
if (!BIO_set_read_buffer_size(bbio, 1)) {
|
|
SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
|
|
return (0);
|
|
}
|
|
if (push) {
|
|
if (s->wbio != bbio)
|
|
s->wbio = BIO_push(bbio, s->wbio);
|
|
} else {
|
|
if (s->wbio == bbio)
|
|
s->wbio = BIO_pop(bbio);
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
void ssl_free_wbio_buffer(SSL *s)
|
|
{
|
|
/* callers ensure s is never null */
|
|
if (s->bbio == NULL)
|
|
return;
|
|
|
|
if (s->bbio == s->wbio) {
|
|
/* remove buffering */
|
|
s->wbio = BIO_pop(s->wbio);
|
|
#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
|
|
* adding one more preprocessor symbol */
|
|
assert(s->wbio != NULL);
|
|
#endif
|
|
}
|
|
BIO_free(s->bbio);
|
|
s->bbio = NULL;
|
|
}
|
|
|
|
void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
|
|
{
|
|
ctx->quiet_shutdown = mode;
|
|
}
|
|
|
|
int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
|
|
{
|
|
return (ctx->quiet_shutdown);
|
|
}
|
|
|
|
void SSL_set_quiet_shutdown(SSL *s, int mode)
|
|
{
|
|
s->quiet_shutdown = mode;
|
|
}
|
|
|
|
int SSL_get_quiet_shutdown(const SSL *s)
|
|
{
|
|
return (s->quiet_shutdown);
|
|
}
|
|
|
|
void SSL_set_shutdown(SSL *s, int mode)
|
|
{
|
|
s->shutdown = mode;
|
|
}
|
|
|
|
int SSL_get_shutdown(const SSL *s)
|
|
{
|
|
return (s->shutdown);
|
|
}
|
|
|
|
int SSL_version(const SSL *s)
|
|
{
|
|
return (s->version);
|
|
}
|
|
|
|
SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
|
|
{
|
|
return (ssl->ctx);
|
|
}
|
|
|
|
SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
|
|
{
|
|
CERT *new_cert;
|
|
if (ssl->ctx == ctx)
|
|
return ssl->ctx;
|
|
if (ctx == NULL)
|
|
ctx = ssl->initial_ctx;
|
|
new_cert = ssl_cert_dup(ctx->cert);
|
|
if (new_cert == NULL) {
|
|
return NULL;
|
|
}
|
|
ssl_cert_free(ssl->cert);
|
|
ssl->cert = new_cert;
|
|
|
|
/*
|
|
* Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
|
|
* so setter APIs must prevent invalid lengths from entering the system.
|
|
*/
|
|
OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
|
|
|
|
/*
|
|
* If the session ID context matches that of the parent SSL_CTX,
|
|
* inherit it from the new SSL_CTX as well. If however the context does
|
|
* not match (i.e., it was set per-ssl with SSL_set_session_id_context),
|
|
* leave it unchanged.
|
|
*/
|
|
if ((ssl->ctx != NULL) &&
|
|
(ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
|
|
(memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
|
|
ssl->sid_ctx_length = ctx->sid_ctx_length;
|
|
memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
|
|
}
|
|
|
|
CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
|
|
SSL_CTX_free(ssl->ctx); /* decrement reference count */
|
|
ssl->ctx = ctx;
|
|
|
|
return (ssl->ctx);
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
|
|
{
|
|
return (X509_STORE_set_default_paths(ctx->cert_store));
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
|
|
{
|
|
X509_LOOKUP *lookup;
|
|
|
|
lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
|
|
if (lookup == NULL)
|
|
return 0;
|
|
X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
|
|
|
|
/* Clear any errors if the default directory does not exist */
|
|
ERR_clear_error();
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
|
|
{
|
|
X509_LOOKUP *lookup;
|
|
|
|
lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
|
|
if (lookup == NULL)
|
|
return 0;
|
|
|
|
X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
|
|
|
|
/* Clear any errors if the default file does not exist */
|
|
ERR_clear_error();
|
|
|
|
return 1;
|
|
}
|
|
|
|
int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
|
|
const char *CApath)
|
|
{
|
|
return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
|
|
}
|
|
|
|
void SSL_set_info_callback(SSL *ssl,
|
|
void (*cb) (const SSL *ssl, int type, int val))
|
|
{
|
|
ssl->info_callback = cb;
|
|
}
|
|
|
|
/*
|
|
* One compiler (Diab DCC) doesn't like argument names in returned function
|
|
* pointer.
|
|
*/
|
|
void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
|
|
int /* type */ ,
|
|
int /* val */ ) {
|
|
return ssl->info_callback;
|
|
}
|
|
|
|
void SSL_set_verify_result(SSL *ssl, long arg)
|
|
{
|
|
ssl->verify_result = arg;
|
|
}
|
|
|
|
long SSL_get_verify_result(const SSL *ssl)
|
|
{
|
|
return (ssl->verify_result);
|
|
}
|
|
|
|
size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
|
{
|
|
if (outlen == 0)
|
|
return sizeof(ssl->s3->client_random);
|
|
if (outlen > sizeof(ssl->s3->client_random))
|
|
outlen = sizeof(ssl->s3->client_random);
|
|
memcpy(out, ssl->s3->client_random, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
|
|
{
|
|
if (outlen == 0)
|
|
return sizeof(ssl->s3->server_random);
|
|
if (outlen > sizeof(ssl->s3->server_random))
|
|
outlen = sizeof(ssl->s3->server_random);
|
|
memcpy(out, ssl->s3->server_random, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
|
|
unsigned char *out, size_t outlen)
|
|
{
|
|
if (session->master_key_length < 0) {
|
|
/* Should never happen */
|
|
return 0;
|
|
}
|
|
if (outlen == 0)
|
|
return session->master_key_length;
|
|
if (outlen > (size_t)session->master_key_length)
|
|
outlen = session->master_key_length;
|
|
memcpy(out, session->master_key, outlen);
|
|
return outlen;
|
|
}
|
|
|
|
int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
|
|
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
|
|
{
|
|
return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
|
|
new_func, dup_func, free_func);
|
|
}
|
|
|
|
int SSL_set_ex_data(SSL *s, int idx, void *arg)
|
|
{
|
|
return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
|
|
}
|
|
|
|
void *SSL_get_ex_data(const SSL *s, int idx)
|
|
{
|
|
return (CRYPTO_get_ex_data(&s->ex_data, idx));
|
|
}
|
|
|
|
int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
|
|
CRYPTO_EX_dup *dup_func,
|
|
CRYPTO_EX_free *free_func)
|
|
{
|
|
return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
|
|
new_func, dup_func, free_func);
|
|
}
|
|
|
|
int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
|
|
{
|
|
return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
|
|
}
|
|
|
|
void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
|
|
{
|
|
return (CRYPTO_get_ex_data(&s->ex_data, idx));
|
|
}
|
|
|
|
int ssl_ok(SSL *s)
|
|
{
|
|
return (1);
|
|
}
|
|
|
|
X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
|
|
{
|
|
return (ctx->cert_store);
|
|
}
|
|
|
|
void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
|
|
{
|
|
X509_STORE_free(ctx->cert_store);
|
|
ctx->cert_store = store;
|
|
}
|
|
|
|
int SSL_want(const SSL *s)
|
|
{
|
|
return (s->rwstate);
|
|
}
|
|
|
|
/**
|
|
* \brief Set the callback for generating temporary RSA keys.
|
|
* \param ctx the SSL context.
|
|
* \param cb the callback
|
|
*/
|
|
|
|
#ifndef OPENSSL_NO_RSA
|
|
void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
|
|
int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
|
|
int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
|
|
}
|
|
#endif
|
|
|
|
#ifdef DOXYGEN
|
|
/**
|
|
* \brief The RSA temporary key callback function.
|
|
* \param ssl the SSL session.
|
|
* \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
|
|
* \param keylength if \c is_export is \c TRUE, then \c keylength is the size
|
|
* of the required key in bits.
|
|
* \return the temporary RSA key.
|
|
* \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
|
|
*/
|
|
|
|
RSA *cb(SSL *ssl, int is_export, int keylength)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* \brief Set the callback for generating temporary DH keys.
|
|
* \param ctx the SSL context.
|
|
* \param dh the callback
|
|
*/
|
|
|
|
#ifndef OPENSSL_NO_DH
|
|
void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
|
|
DH *(*dh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
|
}
|
|
|
|
void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_EC
|
|
void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
|
|
EC_KEY *(*ecdh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
|
|
(void (*)(void))ecdh);
|
|
}
|
|
|
|
void SSL_set_tmp_ecdh_callback(SSL *ssl,
|
|
EC_KEY *(*ecdh) (SSL *ssl, int is_export,
|
|
int keylength))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
|
|
}
|
|
#endif
|
|
|
|
#ifndef OPENSSL_NO_PSK
|
|
int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
|
|
{
|
|
if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
|
SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
|
|
SSL_R_DATA_LENGTH_TOO_LONG);
|
|
return 0;
|
|
}
|
|
OPENSSL_free(ctx->cert->psk_identity_hint);
|
|
if (identity_hint != NULL) {
|
|
ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
|
|
if (ctx->cert->psk_identity_hint == NULL)
|
|
return 0;
|
|
} else
|
|
ctx->cert->psk_identity_hint = NULL;
|
|
return 1;
|
|
}
|
|
|
|
int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
|
|
{
|
|
if (s == NULL)
|
|
return 0;
|
|
|
|
if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
|
|
SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
|
|
return 0;
|
|
}
|
|
OPENSSL_free(s->cert->psk_identity_hint);
|
|
if (identity_hint != NULL) {
|
|
s->cert->psk_identity_hint = BUF_strdup(identity_hint);
|
|
if (s->cert->psk_identity_hint == NULL)
|
|
return 0;
|
|
} else
|
|
s->cert->psk_identity_hint = NULL;
|
|
return 1;
|
|
}
|
|
|
|
const char *SSL_get_psk_identity_hint(const SSL *s)
|
|
{
|
|
if (s == NULL || s->session == NULL)
|
|
return NULL;
|
|
return (s->session->psk_identity_hint);
|
|
}
|
|
|
|
const char *SSL_get_psk_identity(const SSL *s)
|
|
{
|
|
if (s == NULL || s->session == NULL)
|
|
return NULL;
|
|
return (s->session->psk_identity);
|
|
}
|
|
|
|
void SSL_set_psk_client_callback(SSL *s,
|
|
unsigned int (*cb) (SSL *ssl,
|
|
const char *hint,
|
|
char *identity,
|
|
unsigned int
|
|
max_identity_len,
|
|
unsigned char *psk,
|
|
unsigned int
|
|
max_psk_len))
|
|
{
|
|
s->psk_client_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
|
|
unsigned int (*cb) (SSL *ssl,
|
|
const char *hint,
|
|
char *identity,
|
|
unsigned int
|
|
max_identity_len,
|
|
unsigned char *psk,
|
|
unsigned int
|
|
max_psk_len))
|
|
{
|
|
ctx->psk_client_callback = cb;
|
|
}
|
|
|
|
void SSL_set_psk_server_callback(SSL *s,
|
|
unsigned int (*cb) (SSL *ssl,
|
|
const char *identity,
|
|
unsigned char *psk,
|
|
unsigned int
|
|
max_psk_len))
|
|
{
|
|
s->psk_server_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
|
|
unsigned int (*cb) (SSL *ssl,
|
|
const char *identity,
|
|
unsigned char *psk,
|
|
unsigned int
|
|
max_psk_len))
|
|
{
|
|
ctx->psk_server_callback = cb;
|
|
}
|
|
#endif
|
|
|
|
void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
|
|
void (*cb) (int write_p, int version,
|
|
int content_type, const void *buf,
|
|
size_t len, SSL *ssl, void *arg))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_set_msg_callback(SSL *ssl,
|
|
void (*cb) (int write_p, int version,
|
|
int content_type, const void *buf,
|
|
size_t len, SSL *ssl, void *arg))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
|
|
int (*cb) (SSL *ssl,
|
|
int
|
|
is_forward_secure))
|
|
{
|
|
SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
|
(void (*)(void))cb);
|
|
}
|
|
|
|
void SSL_set_not_resumable_session_callback(SSL *ssl,
|
|
int (*cb) (SSL *ssl,
|
|
int is_forward_secure))
|
|
{
|
|
SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
|
|
(void (*)(void))cb);
|
|
}
|
|
|
|
/*
|
|
* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
|
|
* vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
|
|
* If EVP_MD pointer is passed, initializes ctx with this md Returns newly
|
|
* allocated ctx;
|
|
*/
|
|
|
|
EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
|
|
{
|
|
ssl_clear_hash_ctx(hash);
|
|
*hash = EVP_MD_CTX_create();
|
|
if (md)
|
|
EVP_DigestInit_ex(*hash, md, NULL);
|
|
return *hash;
|
|
}
|
|
|
|
void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
|
|
{
|
|
|
|
if (*hash)
|
|
EVP_MD_CTX_destroy(*hash);
|
|
*hash = NULL;
|
|
}
|
|
|
|
/* Retrieve handshake hashes */
|
|
int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
|
|
{
|
|
unsigned char *p = out;
|
|
int idx, ret = 0;
|
|
long mask;
|
|
EVP_MD_CTX ctx;
|
|
const EVP_MD *md;
|
|
EVP_MD_CTX_init(&ctx);
|
|
for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
|
|
if (mask & ssl_get_algorithm2(s)) {
|
|
int hashsize = EVP_MD_size(md);
|
|
EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
|
|
if (!hdgst || hashsize < 0 || hashsize > outlen)
|
|
goto err;
|
|
if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
|
|
goto err;
|
|
if (!EVP_DigestFinal_ex(&ctx, p, NULL))
|
|
goto err;
|
|
p += hashsize;
|
|
outlen -= hashsize;
|
|
}
|
|
}
|
|
ret = p - out;
|
|
err:
|
|
EVP_MD_CTX_cleanup(&ctx);
|
|
return ret;
|
|
}
|
|
|
|
void SSL_set_debug(SSL *s, int debug)
|
|
{
|
|
s->debug = debug;
|
|
}
|
|
|
|
int SSL_cache_hit(SSL *s)
|
|
{
|
|
return s->hit;
|
|
}
|
|
|
|
int SSL_is_server(SSL *s)
|
|
{
|
|
return s->server;
|
|
}
|
|
|
|
void SSL_set_security_level(SSL *s, int level)
|
|
{
|
|
s->cert->sec_level = level;
|
|
}
|
|
|
|
int SSL_get_security_level(const SSL *s)
|
|
{
|
|
return s->cert->sec_level;
|
|
}
|
|
|
|
void SSL_set_security_callback(SSL *s,
|
|
int (*cb) (SSL *s, SSL_CTX *ctx, int op,
|
|
int bits, int nid, void *other,
|
|
void *ex))
|
|
{
|
|
s->cert->sec_cb = cb;
|
|
}
|
|
|
|
int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
|
|
int bits, int nid,
|
|
void *other, void *ex) {
|
|
return s->cert->sec_cb;
|
|
}
|
|
|
|
void SSL_set0_security_ex_data(SSL *s, void *ex)
|
|
{
|
|
s->cert->sec_ex = ex;
|
|
}
|
|
|
|
void *SSL_get0_security_ex_data(const SSL *s)
|
|
{
|
|
return s->cert->sec_ex;
|
|
}
|
|
|
|
void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
|
|
{
|
|
ctx->cert->sec_level = level;
|
|
}
|
|
|
|
int SSL_CTX_get_security_level(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->cert->sec_level;
|
|
}
|
|
|
|
void SSL_CTX_set_security_callback(SSL_CTX *ctx,
|
|
int (*cb) (SSL *s, SSL_CTX *ctx, int op,
|
|
int bits, int nid, void *other,
|
|
void *ex))
|
|
{
|
|
ctx->cert->sec_cb = cb;
|
|
}
|
|
|
|
int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
|
|
SSL_CTX *ctx,
|
|
int op, int bits,
|
|
int nid,
|
|
void *other,
|
|
void *ex) {
|
|
return ctx->cert->sec_cb;
|
|
}
|
|
|
|
void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
|
|
{
|
|
ctx->cert->sec_ex = ex;
|
|
}
|
|
|
|
void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
|
|
{
|
|
return ctx->cert->sec_ex;
|
|
}
|
|
|
|
IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
|