648 lines
25 KiB
C
648 lines
25 KiB
C
/* 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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#ifndef OPENSSL_NO_COMP
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#include <openssl/comp.h>
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#endif
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#include <openssl/buffer.h>
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#include <openssl/evp.h>
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#include <openssl/ssl.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 draft-ietf-tls-renegotiation-03.txt */
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#define SSL3_CK_SCSV 0x030000FF
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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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#if 0
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#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
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#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
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#if 0 /* Because it clashes with KRB5, is never used any more, and is safe
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to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
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of the ietf-tls list */
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#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
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#endif
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#endif
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/* VRS Additional Kerberos5 entries
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*/
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#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
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#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
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#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
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#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
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#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
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#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
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#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
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#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
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#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
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#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
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#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
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#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
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#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
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#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
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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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#if 0
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#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
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#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
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#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
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#endif
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#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
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#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
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#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
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#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
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#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
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#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
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#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
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#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
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#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
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#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
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#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
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#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
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#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
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#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
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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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#ifndef SSL3_ALIGN_PAYLOAD
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/* Some will argue that this increases memory footprint, but it's
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* not actually true. Point is that malloc has to return at least
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* 64-bit aligned pointers, meaning that allocating 5 bytes wastes
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* 3 bytes in either case. Suggested pre-gaping simply moves these
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* wasted bytes from the end of allocated region to its front,
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* 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.
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* Currently maximum of 20 is used by SHA1, but we reserve for
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* future extension for 512-bit hashes.
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*/
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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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*/
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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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/* Default buffer length used for writen records. Thus a generated record
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* will contain plaintext no larger than this value. */
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#define SSL3_RT_DEFAULT_PLAIN_LENGTH 2048
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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.
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* In practice the value is lower than this. The overhead is the maximum
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* number of padding bytes (256) plus the mac size.
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*/
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#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
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/* OpenSSL currently only uses a padding length of at most one block so
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* the send overhead is smaller.
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*/
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#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
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(SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
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/* If compression isn't used don't include the compression overhead */
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#ifdef OPENSSL_NO_COMP
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#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
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#else
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#define SSL3_RT_MAX_COMPRESSED_LENGTH \
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(SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
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#endif
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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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/* Extra space for empty fragment, headers, MAC, and padding. */
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#define SSL3_RT_DEFAULT_WRITE_OVERHEAD 256
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#define SSL3_RT_DEFAULT_PACKET_SIZE 4096 - SSL3_RT_DEFAULT_WRITE_OVERHEAD
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#if SSL3_RT_DEFAULT_PLAIN_LENGTH + SSL3_RT_DEFAULT_WRITE_OVERHEAD > SSL3_RT_DEFAULT_PACKET_SIZE
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#error "Insufficient space allocated for write buffers."
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#endif
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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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#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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typedef struct ssl3_record_st
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{
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/*r */ int type; /* type of record */
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/*rw*/ unsigned int length; /* How many bytes available */
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/*r */ unsigned int off; /* read/write offset into 'buf' */
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/*rw*/ unsigned char *data; /* pointer to the record data */
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/*rw*/ unsigned char *input; /* where the decode bytes are */
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/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
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/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
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/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
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} SSL3_RECORD;
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typedef struct ssl3_buffer_st
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{
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unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
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* see 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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/* SSL3_CT_NUMBER is used to size arrays and it must be large
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* enough to contain all of the cert types defined either for
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* SSLv3 and TLSv1.
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*/
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#define SSL3_CT_NUMBER 9
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#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
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#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
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#define SSL3_FLAGS_POP_BUFFER 0x0004
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#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
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#define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
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typedef struct ssl3_state_st
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{
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long flags;
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int delay_buf_pop_ret;
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unsigned char read_sequence[8];
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int read_mac_secret_size;
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unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
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unsigned char write_sequence[8];
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int write_mac_secret_size;
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unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
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unsigned char server_random[SSL3_RANDOM_SIZE];
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unsigned char client_random[SSL3_RANDOM_SIZE];
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/* flags for countermeasure against known-IV weakness */
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int need_empty_fragments;
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int empty_fragment_done;
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/* The value of 'extra' when the buffers were initialized */
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int init_extra;
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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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SSL3_RECORD wrec; /* goes out from here */
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/* storage for Alert/Handshake protocol data received but not
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* yet processed by ssl3_read_bytes: */
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unsigned char alert_fragment[2];
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unsigned int alert_fragment_len;
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unsigned char handshake_fragment[4];
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unsigned int handshake_fragment_len;
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/* partial write - check the numbers match */
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unsigned int wnum; /* number of bytes sent so far */
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int wpend_tot; /* number bytes written */
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int wpend_type;
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int wpend_ret; /* number of bytes submitted */
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const unsigned char *wpend_buf;
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/* used during startup, digest all incoming/outgoing packets */
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BIO *handshake_buffer;
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/* When set of handshake digests is determined, buffer is hashed
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* and freed and MD_CTX-es for all required digests are stored in
|
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* this array */
|
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EVP_MD_CTX **handshake_dgst;
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/* this is set whenerver we see a change_cipher_spec message
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* come in when we are not looking for one */
|
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int change_cipher_spec;
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|
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int warn_alert;
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int fatal_alert;
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/* we allow one fatal and one warning alert to be outstanding,
|
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* send close alert via the warning alert */
|
|
int alert_dispatch;
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unsigned char send_alert[2];
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|
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/* This flag is set when we should renegotiate ASAP, basically when
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* there is no more data in the read or write buffers */
|
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int renegotiate;
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int total_renegotiations;
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int num_renegotiations;
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|
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int in_read_app_data;
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|
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/* Opaque PRF input as used for the current handshake.
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* These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined
|
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* (otherwise, they are merely present to improve binary compatibility) */
|
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void *client_opaque_prf_input;
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size_t client_opaque_prf_input_len;
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void *server_opaque_prf_input;
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size_t server_opaque_prf_input_len;
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|
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struct {
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/* actually only needs to be 16+20 */
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unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
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|
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/* actually only need to be 16+20 for SSLv3 and 12 for TLS */
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unsigned char finish_md[EVP_MAX_MD_SIZE*2];
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int finish_md_len;
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|
unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
|
|
int peer_finish_md_len;
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|
|
unsigned long message_size;
|
|
int message_type;
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|
|
|
/* used to hold the new cipher we are going to use */
|
|
const SSL_CIPHER *new_cipher;
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#ifndef OPENSSL_NO_DH
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DH *dh;
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|
#endif
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|
|
#ifndef OPENSSL_NO_ECDH
|
|
EC_KEY *ecdh; /* holds short lived ECDH key */
|
|
#endif
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|
|
/* used when SSL_ST_FLUSH_DATA is entered */
|
|
int next_state;
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|
|
|
int reuse_message;
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|
|
/* used for certificate requests */
|
|
int cert_req;
|
|
int ctype_num;
|
|
char ctype[SSL3_CT_NUMBER];
|
|
STACK_OF(X509_NAME) *ca_names;
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|
|
|
int use_rsa_tmp;
|
|
|
|
int key_block_length;
|
|
unsigned char *key_block;
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|
|
|
const EVP_CIPHER *new_sym_enc;
|
|
const EVP_MD *new_hash;
|
|
int new_mac_pkey_type;
|
|
int new_mac_secret_size;
|
|
#ifndef OPENSSL_NO_COMP
|
|
const SSL_COMP *new_compression;
|
|
#else
|
|
char *new_compression;
|
|
#endif
|
|
int cert_request;
|
|
} tmp;
|
|
|
|
/* Connection binding to prevent renegotiation attacks */
|
|
unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
|
|
unsigned char previous_client_finished_len;
|
|
unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
|
|
unsigned char previous_server_finished_len;
|
|
int send_connection_binding; /* TODOEKR */
|
|
} SSL3_STATE;
|
|
|
|
|
|
/* SSLv3 */
|
|
/*client */
|
|
/* extra state */
|
|
#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
|
|
#define SSL3_ST_CUTTHROUGH_COMPLETE (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_FINISHED_A (0x1B0|SSL_ST_CONNECT)
|
|
#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
|
|
/* read from server */
|
|
#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
|
|
#define SSL3_ST_CR_CHANGE_B (0x1C1|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 */
|
|
/* 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)
|
|
/* write to client */
|
|
#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
|
|
#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
|
|
#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_A (0x1B0|SSL_ST_ACCEPT)
|
|
#define SSL3_ST_SR_CHANGE_B (0x1B1|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_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 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
|