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681 lines
28 KiB
681 lines
28 KiB
/* ssl/ssl3.h */
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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) 1998-2002 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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#ifndef HEADER_SSL3_H
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#define HEADER_SSL3_H
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#include <openssl/aead.h>
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#include <openssl/buf.h>
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#include <openssl/evp.h>
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#include <openssl/ssl.h>
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#include <openssl/type_check.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Signalling cipher suite value: from RFC5746 */
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#define SSL3_CK_SCSV 0x030000FF
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/* Fallback signalling cipher suite value: not IANA assigned.
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* See https://tools.ietf.org/html/draft-bmoeller-tls-downgrade-scsv-01 */
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#define SSL3_CK_FALLBACK_SCSV 0x03005600
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#define SSL3_CK_RSA_NULL_MD5 0x03000001
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#define SSL3_CK_RSA_NULL_SHA 0x03000002
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#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
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#define SSL3_CK_RSA_RC4_128_MD5 0x03000004
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#define SSL3_CK_RSA_RC4_128_SHA 0x03000005
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#define SSL3_CK_RSA_RC2_40_MD5 0x03000006
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#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
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#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
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#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
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#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
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#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
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#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
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#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
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#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
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#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
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#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
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#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
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#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
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#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
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#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
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#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
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#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
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#define SSL3_CK_ADH_RC4_40_MD5 0x03000017
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#define SSL3_CK_ADH_RC4_128_MD5 0x03000018
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#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
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#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
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#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
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#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
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#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
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#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
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#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
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#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
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#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
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#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
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#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
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#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
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#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
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#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
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#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
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#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
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#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
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#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
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#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
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#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
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#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
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#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
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#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
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#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
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#define SSL3_SSL_SESSION_ID_LENGTH 32
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#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
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#define SSL3_MASTER_SECRET_SIZE 48
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#define SSL3_RANDOM_SIZE 32
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#define SSL3_SESSION_ID_SIZE 32
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#define SSL3_RT_HEADER_LENGTH 5
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#define SSL3_HM_HEADER_LENGTH 4
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#ifndef SSL3_ALIGN_PAYLOAD
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/* Some will argue that this increases memory footprint, but it's not actually
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* true. Point is that malloc has to return at least 64-bit aligned pointers,
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* meaning that allocating 5 bytes wastes 3 bytes in either case. Suggested
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* pre-gaping simply moves these wasted bytes from the end of allocated region
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* to its front, but makes data payload aligned, which improves performance. */
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#define SSL3_ALIGN_PAYLOAD 8
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#else
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#if (SSL3_ALIGN_PAYLOAD & (SSL3_ALIGN_PAYLOAD - 1)) != 0
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#error "insane SSL3_ALIGN_PAYLOAD"
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#undef SSL3_ALIGN_PAYLOAD
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#endif
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#endif
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/* This is the maximum MAC (digest) size used by the SSL library. Currently
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* maximum of 20 is used by SHA1, but we reserve for future extension for
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* 512-bit hashes. */
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#define SSL3_RT_MAX_MD_SIZE 64
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/* Maximum block size used in all ciphersuites. Currently 16 for AES. */
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#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
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#define SSL3_RT_MAX_EXTRA (16384)
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/* Maximum plaintext length: defined by SSL/TLS standards */
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#define SSL3_RT_MAX_PLAIN_LENGTH 16384
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/* Maximum compression overhead: defined by SSL/TLS standards */
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#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
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/* The standards give a maximum encryption overhead of 1024 bytes. In practice
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* the value is lower than this. The overhead is the maximum number of padding
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* bytes (256) plus the mac size.
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*
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* TODO(davidben): This derivation doesn't take AEADs into account, or TLS 1.1
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* explicit nonces. It happens to work because |SSL3_RT_MAX_MD_SIZE| is larger
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* than necessary and no true AEAD has variable overhead in TLS 1.2. */
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#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
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/* SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD is the maximum overhead in encrypting a
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* record. This does not include the record header. Some ciphers use explicit
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* nonces, so it includes both the AEAD overhead as well as the nonce. */
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#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
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(EVP_AEAD_MAX_OVERHEAD + EVP_AEAD_MAX_NONCE_LENGTH)
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OPENSSL_COMPILE_ASSERT(
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SSL3_RT_MAX_ENCRYPTED_OVERHEAD >= SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD,
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max_overheads_are_consistent);
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/* SSL3_RT_MAX_COMPRESSED_LENGTH is an alias for
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* |SSL3_RT_MAX_PLAIN_LENGTH|. Compression is gone, so don't include the
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* compression overhead. */
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#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
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#define SSL3_RT_MAX_ENCRYPTED_LENGTH \
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(SSL3_RT_MAX_ENCRYPTED_OVERHEAD + SSL3_RT_MAX_COMPRESSED_LENGTH)
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#define SSL3_RT_MAX_PACKET_SIZE \
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(SSL3_RT_MAX_ENCRYPTED_LENGTH + SSL3_RT_HEADER_LENGTH)
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#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
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#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
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#define SSL3_VERSION 0x0300
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#define SSL3_VERSION_MAJOR 0x03
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#define SSL3_VERSION_MINOR 0x00
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#define SSL3_RT_CHANGE_CIPHER_SPEC 20
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#define SSL3_RT_ALERT 21
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#define SSL3_RT_HANDSHAKE 22
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#define SSL3_RT_APPLICATION_DATA 23
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/* Pseudo content types to indicate additional parameters */
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#define TLS1_RT_CRYPTO 0x1000
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#define TLS1_RT_CRYPTO_PREMASTER (TLS1_RT_CRYPTO | 0x1)
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#define TLS1_RT_CRYPTO_CLIENT_RANDOM (TLS1_RT_CRYPTO | 0x2)
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#define TLS1_RT_CRYPTO_SERVER_RANDOM (TLS1_RT_CRYPTO | 0x3)
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#define TLS1_RT_CRYPTO_MASTER (TLS1_RT_CRYPTO | 0x4)
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#define TLS1_RT_CRYPTO_READ 0x0000
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#define TLS1_RT_CRYPTO_WRITE 0x0100
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#define TLS1_RT_CRYPTO_MAC (TLS1_RT_CRYPTO | 0x5)
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#define TLS1_RT_CRYPTO_KEY (TLS1_RT_CRYPTO | 0x6)
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#define TLS1_RT_CRYPTO_IV (TLS1_RT_CRYPTO | 0x7)
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#define TLS1_RT_CRYPTO_FIXED_IV (TLS1_RT_CRYPTO | 0x8)
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/* Pseudo content type for SSL/TLS header info */
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#define SSL3_RT_HEADER 0x100
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#define SSL3_AL_WARNING 1
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#define SSL3_AL_FATAL 2
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#define SSL3_AD_CLOSE_NOTIFY 0
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#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
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#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
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#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
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#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
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#define SSL3_AD_NO_CERTIFICATE 41
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#define SSL3_AD_BAD_CERTIFICATE 42
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#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
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#define SSL3_AD_CERTIFICATE_REVOKED 44
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#define SSL3_AD_CERTIFICATE_EXPIRED 45
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#define SSL3_AD_CERTIFICATE_UNKNOWN 46
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#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
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#define SSL3_AD_INAPPROPRIATE_FALLBACK 86 /* fatal */
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typedef struct ssl3_record_st {
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/* type is the record type. */
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uint8_t type;
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/* length is the number of unconsumed bytes of |data|. */
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uint16_t length;
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/* off is the number of consumed bytes of |data|. */
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uint16_t off;
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/* data is a non-owning pointer to the record contents. The total length of
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* the buffer is |off| + |length|. */
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uint8_t *data;
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/* epoch, in DTLS, is the epoch number of the record. */
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uint16_t epoch;
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/* seq_num, in DTLS, is the sequence number of the record. The top two bytes
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* are always zero.
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*
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* TODO(davidben): This is confusing. They should include the epoch or the
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* field should be six bytes. */
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uint8_t seq_num[8];
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} SSL3_RECORD;
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typedef struct ssl3_buffer_st {
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uint8_t *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see
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ssl3_setup_buffers() */
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size_t len; /* buffer size */
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int offset; /* where to 'copy from' */
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int left; /* how many bytes left */
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} SSL3_BUFFER;
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#define SSL3_CT_RSA_SIGN 1
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#define SSL3_CT_DSS_SIGN 2
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#define SSL3_CT_RSA_FIXED_DH 3
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#define SSL3_CT_DSS_FIXED_DH 4
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#define SSL3_CT_RSA_EPHEMERAL_DH 5
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#define SSL3_CT_DSS_EPHEMERAL_DH 6
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#define SSL3_CT_FORTEZZA_DMS 20
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/* TODO(davidben): This flag can probably be merged into s3->change_cipher_spec
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* to something tri-state. (Normal / Expect CCS / Between CCS and Finished). */
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#define SSL3_FLAGS_EXPECT_CCS 0x0080
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typedef struct ssl3_state_st {
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long flags;
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uint8_t read_sequence[8];
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int read_mac_secret_size;
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uint8_t read_mac_secret[EVP_MAX_MD_SIZE];
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uint8_t write_sequence[8];
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int write_mac_secret_size;
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uint8_t write_mac_secret[EVP_MAX_MD_SIZE];
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uint8_t server_random[SSL3_RANDOM_SIZE];
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uint8_t client_random[SSL3_RANDOM_SIZE];
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/* flags for countermeasure against known-IV weakness */
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int need_record_splitting;
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/* The value of 'extra' when the buffers were initialized */
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int init_extra;
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/* have_version is true if the connection's final version is known. Otherwise
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* the version has not been negotiated yet. */
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char have_version;
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/* initial_handshake_complete is true if the initial handshake has
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* completed. */
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char initial_handshake_complete;
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/* sniff_buffer is used by the server in the initial handshake to read a
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* V2ClientHello before the record layer is initialized. */
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BUF_MEM *sniff_buffer;
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size_t sniff_buffer_len;
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SSL3_BUFFER rbuf; /* read IO goes into here */
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SSL3_BUFFER wbuf; /* write IO goes into here */
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SSL3_RECORD rrec; /* each decoded record goes in here */
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/* storage for Handshake protocol data received but not yet processed by
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* ssl3_read_bytes: */
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uint8_t handshake_fragment[4];
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|
unsigned int handshake_fragment_len;
|
|
|
|
/* partial write - check the numbers match */
|
|
unsigned int wnum; /* number of bytes sent so far */
|
|
int wpend_tot; /* number bytes written */
|
|
int wpend_type;
|
|
int wpend_ret; /* number of bytes submitted */
|
|
const uint8_t *wpend_buf;
|
|
|
|
/* used during startup, digest all incoming/outgoing packets */
|
|
BIO *handshake_buffer;
|
|
/* When set of handshake digests is determined, buffer is hashed and freed
|
|
* and MD_CTX-es for all required digests are stored in this array */
|
|
EVP_MD_CTX **handshake_dgst;
|
|
/* this is set whenerver we see a change_cipher_spec message come in when we
|
|
* are not looking for one */
|
|
int change_cipher_spec;
|
|
|
|
int warn_alert;
|
|
int fatal_alert;
|
|
/* we allow one fatal and one warning alert to be outstanding, send close
|
|
* alert via the warning alert */
|
|
int alert_dispatch;
|
|
uint8_t send_alert[2];
|
|
|
|
int total_renegotiations;
|
|
|
|
/* State pertaining to the pending handshake.
|
|
*
|
|
* TODO(davidben): State is current spread all over the place. Move
|
|
* pending handshake state here so it can be managed separately from
|
|
* established connection state in case of renegotiations. */
|
|
struct {
|
|
/* actually only need to be 16+20 for SSLv3 and 12 for TLS */
|
|
uint8_t finish_md[EVP_MAX_MD_SIZE * 2];
|
|
int finish_md_len;
|
|
uint8_t peer_finish_md[EVP_MAX_MD_SIZE * 2];
|
|
int peer_finish_md_len;
|
|
|
|
unsigned long message_size;
|
|
int message_type;
|
|
|
|
/* used to hold the new cipher we are going to use */
|
|
const SSL_CIPHER *new_cipher;
|
|
DH *dh;
|
|
|
|
EC_KEY *ecdh; /* holds short lived ECDH key */
|
|
|
|
/* used when SSL_ST_FLUSH_DATA is entered */
|
|
int next_state;
|
|
|
|
int reuse_message;
|
|
|
|
/* Client-only: cert_req determines if a client certificate is to be sent.
|
|
* This is 0 if no client Certificate message is to be sent, 1 if there is
|
|
* a client certificate, and 2 to send an empty client Certificate
|
|
* message. */
|
|
int cert_req;
|
|
|
|
/* Client-only: ca_names contains the list of CAs received in a
|
|
* CertificateRequest message. */
|
|
STACK_OF(X509_NAME) *ca_names;
|
|
|
|
/* Client-only: certificate_types contains the set of certificate types
|
|
* received in a CertificateRequest message. */
|
|
uint8_t *certificate_types;
|
|
size_t num_certificate_types;
|
|
|
|
int key_block_length;
|
|
uint8_t *key_block;
|
|
|
|
const EVP_AEAD *new_aead;
|
|
uint8_t new_mac_secret_len;
|
|
uint8_t new_fixed_iv_len;
|
|
uint8_t new_variable_iv_len;
|
|
|
|
/* Server-only: cert_request is true if a client certificate was
|
|
* requested. */
|
|
int cert_request;
|
|
|
|
/* certificate_status_expected is true if OCSP stapling was negotiated and
|
|
* the server is expected to send a CertificateStatus message. */
|
|
char certificate_status_expected;
|
|
|
|
/* peer_ecpointformatlist contains the EC point formats advertised by the
|
|
* peer. */
|
|
uint8_t *peer_ecpointformatlist;
|
|
size_t peer_ecpointformatlist_length;
|
|
|
|
/* Server-only: peer_ellipticcurvelist contains the EC curve IDs advertised
|
|
* by the peer. This is only set on the server's end. The server does not
|
|
* advertise this extension to the client. */
|
|
uint16_t *peer_ellipticcurvelist;
|
|
size_t peer_ellipticcurvelist_length;
|
|
|
|
/* extended_master_secret indicates whether the extended master secret
|
|
* computation is used in this handshake. Note that this is different from
|
|
* whether it was used for the current session. If this is a resumption
|
|
* handshake then EMS might be negotiated in the client and server hello
|
|
* messages, but it doesn't matter if the session that's being resumed
|
|
* didn't use it to create the master secret initially. */
|
|
char extended_master_secret;
|
|
|
|
/* Client-only: peer_psk_identity_hint is the psk_identity_hint sent by the
|
|
* server when using a PSK key exchange. */
|
|
char *peer_psk_identity_hint;
|
|
|
|
/* new_mac_secret_size is unused and exists only until wpa_supplicant can
|
|
* be updated. It is only needed for EAP-FAST, which we don't support. */
|
|
uint8_t new_mac_secret_size;
|
|
|
|
/* Client-only: in_false_start is one if there is a pending handshake in
|
|
* False Start. The client may write data at this point. */
|
|
char in_false_start;
|
|
} tmp;
|
|
|
|
/* Connection binding to prevent renegotiation attacks */
|
|
uint8_t previous_client_finished[EVP_MAX_MD_SIZE];
|
|
uint8_t previous_client_finished_len;
|
|
uint8_t previous_server_finished[EVP_MAX_MD_SIZE];
|
|
uint8_t previous_server_finished_len;
|
|
int send_connection_binding; /* TODOEKR */
|
|
|
|
/* Set if we saw the Next Protocol Negotiation extension from our peer. */
|
|
int next_proto_neg_seen;
|
|
|
|
/* ALPN information
|
|
* (we are in the process of transitioning from NPN to ALPN.) */
|
|
|
|
/* In a server these point to the selected ALPN protocol after the
|
|
* ClientHello has been processed. In a client these contain the protocol
|
|
* that the server selected once the ServerHello has been processed. */
|
|
uint8_t *alpn_selected;
|
|
size_t alpn_selected_len;
|
|
|
|
/* In a client, this means that the server supported Channel ID and that a
|
|
* Channel ID was sent. In a server it means that we echoed support for
|
|
* Channel IDs and that tlsext_channel_id will be valid after the
|
|
* handshake. */
|
|
char tlsext_channel_id_valid;
|
|
/* tlsext_channel_id_new means that the updated Channel ID extension was
|
|
* negotiated. This is a temporary hack in the code to support both forms of
|
|
* Channel ID extension while we transition to the new format, which fixed a
|
|
* security issue. */
|
|
char tlsext_channel_id_new;
|
|
/* For a server:
|
|
* If |tlsext_channel_id_valid| is true, then this contains the
|
|
* verified Channel ID from the client: a P256 point, (x,y), where
|
|
* each are big-endian values. */
|
|
uint8_t tlsext_channel_id[64];
|
|
} SSL3_STATE;
|
|
|
|
/* SSLv3 */
|
|
/* client */
|
|
/* extra state */
|
|
#define SSL3_ST_CW_FLUSH (0x100 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_FALSE_START (0x101 | SSL_ST_CONNECT)
|
|
/* write to server */
|
|
#define SSL3_ST_CW_CLNT_HELLO_A (0x110 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CLNT_HELLO_B (0x111 | SSL_ST_CONNECT)
|
|
/* read from server */
|
|
#define SSL3_ST_CR_SRVR_HELLO_A (0x120 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_SRVR_HELLO_B (0x121 | SSL_ST_CONNECT)
|
|
#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126 | SSL_ST_CONNECT)
|
|
#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_A (0x130 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_B (0x131 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_KEY_EXCH_A (0x140 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_KEY_EXCH_B (0x141 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_REQ_A (0x150 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_REQ_B (0x151 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_SRVR_DONE_A (0x160 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_SRVR_DONE_B (0x161 | SSL_ST_CONNECT)
|
|
/* write to server */
|
|
#define SSL3_ST_CW_CERT_A (0x170 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CERT_B (0x171 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CERT_C (0x172 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CERT_D (0x173 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_KEY_EXCH_A (0x180 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_KEY_EXCH_B (0x181 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CERT_VRFY_A (0x190 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CERT_VRFY_B (0x191 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CHANGE_A (0x1A0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CHANGE_B (0x1A1 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_NEXT_PROTO_A (0x200 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_NEXT_PROTO_B (0x201 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CHANNEL_ID_A (0x220 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_CHANNEL_ID_B (0x221 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_FINISHED_A (0x1B0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_FINISHED_B (0x1B1 | SSL_ST_CONNECT)
|
|
/* read from server */
|
|
#define SSL3_ST_CR_CHANGE (0x1C0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_FINISHED_A (0x1D0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_FINISHED_B (0x1D1 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_STATUS_A (0x1F0 | SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CERT_STATUS_B (0x1F1 | SSL_ST_CONNECT)
|
|
|
|
/* server */
|
|
/* extra state */
|
|
#define SSL3_ST_SW_FLUSH (0x100 | SSL_ST_ACCEPT)
|
|
/* read from client */
|
|
#define SSL3_ST_SR_INITIAL_BYTES (0x240 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_V2_CLIENT_HELLO (0x241 | SSL_ST_ACCEPT)
|
|
/* Do not change the number values, they do matter */
|
|
#define SSL3_ST_SR_CLNT_HELLO_A (0x110 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CLNT_HELLO_B (0x111 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CLNT_HELLO_C (0x112 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CLNT_HELLO_D (0x115 | SSL_ST_ACCEPT)
|
|
/* write to client */
|
|
#define SSL3_ST_SW_HELLO_REQ_A (0x120 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_HELLO_REQ_B (0x121 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_HELLO_REQ_C (0x122 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SRVR_HELLO_A (0x130 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SRVR_HELLO_B (0x131 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_A (0x140 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_B (0x141 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_KEY_EXCH_A (0x150 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_KEY_EXCH_B (0x151 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_REQ_A (0x160 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_REQ_B (0x161 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SRVR_DONE_A (0x170 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SRVR_DONE_B (0x171 | SSL_ST_ACCEPT)
|
|
/* read from client */
|
|
#define SSL3_ST_SR_CERT_A (0x180 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CERT_B (0x181 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_KEY_EXCH_A (0x190 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_KEY_EXCH_B (0x191 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CERT_VRFY_A (0x1A0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CERT_VRFY_B (0x1A1 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CHANGE (0x1B0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_NEXT_PROTO_A (0x210 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_NEXT_PROTO_B (0x211 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CHANNEL_ID_A (0x230 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CHANNEL_ID_B (0x231 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_FINISHED_A (0x1C0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_FINISHED_B (0x1C1 | SSL_ST_ACCEPT)
|
|
|
|
/* write to client */
|
|
#define SSL3_ST_SW_CHANGE_A (0x1D0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CHANGE_B (0x1D1 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_FINISHED_A (0x1E0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_FINISHED_B (0x1E1 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_STATUS_A (0x200 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_CERT_STATUS_B (0x201 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SUPPLEMENTAL_DATA_A (0x220 | SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SW_SUPPLEMENTAL_DATA_B (0x221 | SSL_ST_ACCEPT)
|
|
|
|
#define SSL3_MT_HELLO_REQUEST 0
|
|
#define SSL3_MT_CLIENT_HELLO 1
|
|
#define SSL3_MT_SERVER_HELLO 2
|
|
#define SSL3_MT_NEWSESSION_TICKET 4
|
|
#define SSL3_MT_CERTIFICATE 11
|
|
#define SSL3_MT_SERVER_KEY_EXCHANGE 12
|
|
#define SSL3_MT_CERTIFICATE_REQUEST 13
|
|
#define SSL3_MT_SERVER_DONE 14
|
|
#define SSL3_MT_CERTIFICATE_VERIFY 15
|
|
#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
|
|
#define SSL3_MT_FINISHED 20
|
|
#define SSL3_MT_CERTIFICATE_STATUS 22
|
|
#define SSL3_MT_SUPPLEMENTAL_DATA 23
|
|
#define SSL3_MT_NEXT_PROTO 67
|
|
#define SSL3_MT_ENCRYPTED_EXTENSIONS 203
|
|
#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
|
|
|
|
|
|
#define SSL3_MT_CCS 1
|
|
|
|
/* These are used when changing over to a new cipher */
|
|
#define SSL3_CC_READ 0x01
|
|
#define SSL3_CC_WRITE 0x02
|
|
#define SSL3_CC_CLIENT 0x10
|
|
#define SSL3_CC_SERVER 0x20
|
|
#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT | SSL3_CC_WRITE)
|
|
#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER | SSL3_CC_READ)
|
|
#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT | SSL3_CC_READ)
|
|
#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER | SSL3_CC_WRITE)
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|
|
|