733 lines
31 KiB
C
733 lines
31 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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/*
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* Signalling cipher suite value from RFC 5746
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* (TLS_EMPTY_RENEGOTIATION_INFO_SCSV)
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*/
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# define SSL3_CK_SCSV 0x030000FF
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/*
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* Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00
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* (TLS_FALLBACK_SCSV)
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*/
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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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# 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
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* used any more, and is safe to remove
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* according to David Hopwood
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* <david.hopwood@zetnet.co.uk> of the
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* 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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/*
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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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# define SSL3_HM_HEADER_LENGTH 4
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# ifndef SSL3_ALIGN_PAYLOAD
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/*
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* Some will argue that this increases memory footprint, but it's not
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* actually true. Point is that malloc has to return at least 64-bit aligned
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* pointers, meaning that allocating 5 bytes wastes 3 bytes in either case.
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* Suggested pre-gaping simply moves these wasted bytes from the end of
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* allocated region to its front, but makes data payload aligned, which
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* improves performance:-)
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*/
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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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/*
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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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*/
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# define SSL3_RT_MAX_MD_SIZE 64
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/*
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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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/* 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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/*
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* The standards give a maximum encryption overhead of 1024 bytes. In
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* practice the value is lower than this. The overhead is the maximum number
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* 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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/*
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* OpenSSL currently only uses a padding length of at most one block so the
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* 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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# 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 TLS1_RT_HEARTBEAT 24
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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 TLS1_HB_REQUEST 1
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# define TLS1_HB_RESPONSE 2
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# ifndef OPENSSL_NO_SSL_INTERN
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typedef struct ssl3_record_st {
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/* type of record */
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/*
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* r
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*/ int type;
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/* How many bytes available */
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/*
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* rw
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*/ unsigned int length;
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/* read/write offset into 'buf' */
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/*
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* r
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*/ unsigned int off;
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/* pointer to the record data */
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/*
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* rw
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*/ unsigned char *data;
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/* where the decode bytes are */
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/*
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* rw
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*/ unsigned char *input;
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/* only used with decompression - malloc()ed */
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/*
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* r
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*/ unsigned char *comp;
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/* epoch number, needed by DTLS1 */
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/*
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* r
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*/ unsigned long epoch;
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|
/* sequence number, needed by DTLS1 */
|
|
/*
|
|
* r
|
|
*/ unsigned char seq_num[8];
|
|
} SSL3_RECORD;
|
|
|
|
typedef struct ssl3_buffer_st {
|
|
/* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */
|
|
unsigned char *buf;
|
|
/* buffer size */
|
|
size_t len;
|
|
/* where to 'copy from' */
|
|
int offset;
|
|
/* how many bytes left */
|
|
int left;
|
|
} SSL3_BUFFER;
|
|
|
|
# endif
|
|
|
|
# define SSL3_CT_RSA_SIGN 1
|
|
# define SSL3_CT_DSS_SIGN 2
|
|
# define SSL3_CT_RSA_FIXED_DH 3
|
|
# define SSL3_CT_DSS_FIXED_DH 4
|
|
# define SSL3_CT_RSA_EPHEMERAL_DH 5
|
|
# define SSL3_CT_DSS_EPHEMERAL_DH 6
|
|
# define SSL3_CT_FORTEZZA_DMS 20
|
|
/*
|
|
* SSL3_CT_NUMBER is used to size arrays and it must be large enough to
|
|
* contain all of the cert types defined either for SSLv3 and TLSv1.
|
|
*/
|
|
# define SSL3_CT_NUMBER 9
|
|
|
|
# define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
|
|
# define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
|
|
# define SSL3_FLAGS_POP_BUFFER 0x0004
|
|
# define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
|
|
# define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
|
|
# define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020
|
|
/*
|
|
* Set when the handshake is ready to process peer's ChangeCipherSpec message.
|
|
* Cleared after the message has been processed.
|
|
*/
|
|
# define SSL3_FLAGS_CCS_OK 0x0080
|
|
|
|
/*
|
|
* SSL3_FLAGS_SGC_RESTART_DONE is set when we restart a handshake because of
|
|
* MS SGC and so prevents us from restarting the handshake in a loop. It's
|
|
* reset on a renegotiation, so effectively limits the client to one restart
|
|
* per negotiation. This limits the possibility of a DDoS attack where the
|
|
* client handshakes in a loop using SGC to restart. Servers which permit
|
|
* renegotiation can still be effected, but we can't prevent that.
|
|
*/
|
|
# define SSL3_FLAGS_SGC_RESTART_DONE 0x0040
|
|
|
|
# ifndef OPENSSL_NO_SSL_INTERN
|
|
|
|
typedef struct ssl3_state_st {
|
|
long flags;
|
|
int delay_buf_pop_ret;
|
|
unsigned char read_sequence[8];
|
|
int read_mac_secret_size;
|
|
unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char write_sequence[8];
|
|
int write_mac_secret_size;
|
|
unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
|
|
unsigned char server_random[SSL3_RANDOM_SIZE];
|
|
unsigned char client_random[SSL3_RANDOM_SIZE];
|
|
/* flags for countermeasure against known-IV weakness */
|
|
int need_empty_fragments;
|
|
int empty_fragment_done;
|
|
/* The value of 'extra' when the buffers were initialized */
|
|
int init_extra;
|
|
SSL3_BUFFER rbuf; /* read IO goes into here */
|
|
SSL3_BUFFER wbuf; /* write IO goes into here */
|
|
SSL3_RECORD rrec; /* each decoded record goes in here */
|
|
SSL3_RECORD wrec; /* goes out from here */
|
|
/*
|
|
* storage for Alert/Handshake protocol data received but not yet
|
|
* processed by ssl3_read_bytes:
|
|
*/
|
|
unsigned char alert_fragment[2];
|
|
unsigned int alert_fragment_len;
|
|
unsigned char handshake_fragment[4];
|
|
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 unsigned char *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;
|
|
/*
|
|
* Set whenever an expected ChangeCipherSpec message is processed.
|
|
* Unset when the peer's Finished message is received.
|
|
* Unexpected ChangeCipherSpec messages trigger a fatal alert.
|
|
*/
|
|
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;
|
|
unsigned char send_alert[2];
|
|
/*
|
|
* This flag is set when we should renegotiate ASAP, basically when there
|
|
* is no more data in the read or write buffers
|
|
*/
|
|
int renegotiate;
|
|
int total_renegotiations;
|
|
int num_renegotiations;
|
|
int in_read_app_data;
|
|
/*
|
|
* Opaque PRF input as used for the current handshake. These fields are
|
|
* used only if TLSEXT_TYPE_opaque_prf_input is defined (otherwise, they
|
|
* are merely present to improve binary compatibility)
|
|
*/
|
|
void *client_opaque_prf_input;
|
|
size_t client_opaque_prf_input_len;
|
|
void *server_opaque_prf_input;
|
|
size_t server_opaque_prf_input_len;
|
|
struct {
|
|
/* actually only needs to be 16+20 */
|
|
unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2];
|
|
/* actually only need to be 16+20 for SSLv3 and 12 for TLS */
|
|
unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
|
|
int finish_md_len;
|
|
unsigned char 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;
|
|
# ifndef OPENSSL_NO_DH
|
|
DH *dh;
|
|
# endif
|
|
# ifndef OPENSSL_NO_ECDH
|
|
EC_KEY *ecdh; /* holds short lived ECDH key */
|
|
# endif
|
|
/* used when SSL_ST_FLUSH_DATA is entered */
|
|
int next_state;
|
|
int reuse_message;
|
|
/* used for certificate requests */
|
|
int cert_req;
|
|
int ctype_num;
|
|
char ctype[SSL3_CT_NUMBER];
|
|
STACK_OF(X509_NAME) *ca_names;
|
|
int use_rsa_tmp;
|
|
int key_block_length;
|
|
unsigned char *key_block;
|
|
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 */
|
|
|
|
# ifndef OPENSSL_NO_NEXTPROTONEG
|
|
/*
|
|
* Set if we saw the Next Protocol Negotiation extension from our peer.
|
|
*/
|
|
int next_proto_neg_seen;
|
|
# endif
|
|
|
|
# ifndef OPENSSL_NO_TLSEXT
|
|
# ifndef OPENSSL_NO_EC
|
|
/*
|
|
* This is set to true if we believe that this is a version of Safari
|
|
* running on OS X 10.6 or newer. We wish to know this because Safari on
|
|
* 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
|
|
*/
|
|
char is_probably_safari;
|
|
# endif /* !OPENSSL_NO_EC */
|
|
# endif /* !OPENSSL_NO_TLSEXT */
|
|
} SSL3_STATE;
|
|
|
|
# endif
|
|
|
|
/* SSLv3 */
|
|
/*
|
|
* client
|
|
*/
|
|
/* extra state */
|
|
# define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
|
|
# ifndef OPENSSL_NO_SCTP
|
|
# define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT)
|
|
# define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT)
|
|
# endif
|
|
/* 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)
|
|
# ifndef OPENSSL_NO_NEXTPROTONEG
|
|
# define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
|
|
# define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
|
|
# endif
|
|
# 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)
|
|
# ifndef OPENSSL_NO_SCTP
|
|
# define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT)
|
|
# define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT)
|
|
# endif
|
|
/* 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)
|
|
# ifndef OPENSSL_NO_NEXTPROTONEG
|
|
# define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
|
|
# define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
|
|
# endif
|
|
# 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
|
|
# ifndef OPENSSL_NO_NEXTPROTONEG
|
|
# define SSL3_MT_NEXT_PROTO 67
|
|
# endif
|
|
# 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
|