130832150c
This is mostly a work around for the old VC++ problem that it treats func() as func(void). Various prototypes had been added to 'compare' function pointers that triggered this. This could be fixed by removing the prototype, adding function pointer casts to every call or changing the passed function to use the expected arguments. I mostly did the latter. The mkdef.pl script was modified to remove the typesafe functions which no longer exist. Oh and some functions called OPENSSL_freeLibrary() were changed back to FreeLibrary(), wonder how that happened :-)
482 lines
10 KiB
C
482 lines
10 KiB
C
/* ssl/s2_lib.c */
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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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#include "ssl_locl.h"
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#ifndef NO_SSL2
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#include <stdio.h>
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#include <openssl/rsa.h>
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#include <openssl/objects.h>
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#include <openssl/md5.h>
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static long ssl2_default_timeout(void );
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const char *ssl2_version_str="SSLv2" OPENSSL_VERSION_PTEXT;
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#define SSL2_NUM_CIPHERS (sizeof(ssl2_ciphers)/sizeof(SSL_CIPHER))
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OPENSSL_GLOBAL SSL_CIPHER ssl2_ciphers[]={
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/* NULL_WITH_MD5 v3 */
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#if 0
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{
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1,
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SSL2_TXT_NULL_WITH_MD5,
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SSL2_CK_NULL_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_eNULL|SSL_MD5|SSL_SSLV2,
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SSL_EXPORT|SSL_EXP40,
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0,
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0,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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#endif
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/* RC4_128_EXPORT40_WITH_MD5 */
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{
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1,
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SSL2_TXT_RC4_128_EXPORT40_WITH_MD5,
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SSL2_CK_RC4_128_EXPORT40_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
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SSL_EXPORT|SSL_EXP40,
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SSL2_CF_5_BYTE_ENC,
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40,
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128,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* RC4_128_WITH_MD5 */
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{
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1,
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SSL2_TXT_RC4_128_WITH_MD5,
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SSL2_CK_RC4_128_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_MEDIUM,
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0,
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128,
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128,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* RC2_128_CBC_EXPORT40_WITH_MD5 */
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{
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1,
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SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5,
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SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
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SSL_EXPORT|SSL_EXP40,
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SSL2_CF_5_BYTE_ENC,
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40,
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128,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* RC2_128_CBC_WITH_MD5 */
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{
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1,
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SSL2_TXT_RC2_128_CBC_WITH_MD5,
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SSL2_CK_RC2_128_CBC_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_MEDIUM,
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0,
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128,
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128,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* IDEA_128_CBC_WITH_MD5 */
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{
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1,
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SSL2_TXT_IDEA_128_CBC_WITH_MD5,
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SSL2_CK_IDEA_128_CBC_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_IDEA|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_MEDIUM,
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0,
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128,
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128,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* DES_64_CBC_WITH_MD5 */
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{
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1,
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SSL2_TXT_DES_64_CBC_WITH_MD5,
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SSL2_CK_DES_64_CBC_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_DES|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_LOW,
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0,
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56,
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56,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* DES_192_EDE3_CBC_WITH_MD5 */
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{
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1,
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SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5,
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SSL2_CK_DES_192_EDE3_CBC_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_3DES|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_HIGH,
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0,
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168,
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168,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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/* RC4_64_WITH_MD5 */
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#if 1
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{
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1,
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SSL2_TXT_RC4_64_WITH_MD5,
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SSL2_CK_RC4_64_WITH_MD5,
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SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_SSLV2,
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SSL_NOT_EXP|SSL_LOW,
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SSL2_CF_8_BYTE_ENC,
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64,
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64,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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#endif
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/* NULL SSLeay (testing) */
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#if 0
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{
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0,
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SSL2_TXT_NULL,
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SSL2_CK_NULL,
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0,
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0,
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0,
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0,
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SSL_ALL_CIPHERS,
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SSL_ALL_STRENGTHS,
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},
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#endif
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/* end of list :-) */
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};
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static SSL_METHOD SSLv2_data= {
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SSL2_VERSION,
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ssl2_new, /* local */
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ssl2_clear, /* local */
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ssl2_free, /* local */
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ssl_undefined_function,
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ssl_undefined_function,
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ssl2_read,
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ssl2_peek,
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ssl2_write,
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ssl2_shutdown,
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ssl_ok, /* NULL - renegotiate */
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ssl_ok, /* NULL - check renegotiate */
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ssl2_ctrl, /* local */
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ssl2_ctx_ctrl, /* local */
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ssl2_get_cipher_by_char,
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ssl2_put_cipher_by_char,
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ssl2_pending,
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ssl2_num_ciphers,
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ssl2_get_cipher,
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ssl_bad_method,
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ssl2_default_timeout,
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&ssl3_undef_enc_method,
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ssl_undefined_function,
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ssl2_callback_ctrl, /* local */
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ssl2_ctx_callback_ctrl, /* local */
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};
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static long ssl2_default_timeout(void)
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{
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return(300);
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}
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SSL_METHOD *sslv2_base_method(void)
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{
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return(&SSLv2_data);
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}
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int ssl2_num_ciphers(void)
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{
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return(SSL2_NUM_CIPHERS);
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}
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SSL_CIPHER *ssl2_get_cipher(unsigned int u)
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{
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if (u < SSL2_NUM_CIPHERS)
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return(&(ssl2_ciphers[SSL2_NUM_CIPHERS-1-u]));
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else
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return(NULL);
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}
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int ssl2_pending(SSL *s)
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{
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return(s->s2->ract_data_length);
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}
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int ssl2_new(SSL *s)
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{
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SSL2_STATE *s2;
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if ((s2=OPENSSL_malloc(sizeof *s2)) == NULL) goto err;
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memset(s2,0,sizeof *s2);
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if ((s2->rbuf=OPENSSL_malloc(
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SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
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if ((s2->wbuf=OPENSSL_malloc(
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SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER+2)) == NULL) goto err;
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s->s2=s2;
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ssl2_clear(s);
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return(1);
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err:
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if (s2 != NULL)
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{
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if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
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if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
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OPENSSL_free(s2);
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}
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return(0);
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}
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void ssl2_free(SSL *s)
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{
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SSL2_STATE *s2;
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if(s == NULL)
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return;
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s2=s->s2;
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if (s2->rbuf != NULL) OPENSSL_free(s2->rbuf);
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if (s2->wbuf != NULL) OPENSSL_free(s2->wbuf);
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memset(s2,0,sizeof *s2);
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OPENSSL_free(s2);
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s->s2=NULL;
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}
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void ssl2_clear(SSL *s)
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{
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SSL2_STATE *s2;
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unsigned char *rbuf,*wbuf;
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s2=s->s2;
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rbuf=s2->rbuf;
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wbuf=s2->wbuf;
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memset(s2,0,sizeof *s2);
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s2->rbuf=rbuf;
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s2->wbuf=wbuf;
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s2->clear_text=1;
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s->packet=s2->rbuf;
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s->version=SSL2_VERSION;
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s->packet_length=0;
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}
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long ssl2_ctrl(SSL *s, int cmd, long larg, char *parg)
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{
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int ret=0;
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switch(cmd)
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{
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case SSL_CTRL_GET_SESSION_REUSED:
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ret=s->hit;
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break;
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default:
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break;
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}
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return(ret);
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}
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long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp)())
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{
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return(0);
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}
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long ssl2_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
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{
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return(0);
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}
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long ssl2_ctx_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
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{
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return(0);
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}
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/* This function needs to check if the ciphers required are actually
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* available */
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SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p)
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{
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static int init=1;
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static SSL_CIPHER *sorted[SSL2_NUM_CIPHERS];
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SSL_CIPHER c,*cp= &c,**cpp;
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unsigned long id;
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int i;
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if (init)
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{
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CRYPTO_w_lock(CRYPTO_LOCK_SSL);
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for (i=0; i<SSL2_NUM_CIPHERS; i++)
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sorted[i]= &(ssl2_ciphers[i]);
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qsort( (char *)sorted,
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SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
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FP_ICC ssl_cipher_ptr_id_cmp);
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CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
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init=0;
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}
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id=0x02000000L|((unsigned long)p[0]<<16L)|
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((unsigned long)p[1]<<8L)|(unsigned long)p[2];
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c.id=id;
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cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
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(char *)sorted,
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SSL2_NUM_CIPHERS,sizeof(SSL_CIPHER *),
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FP_ICC ssl_cipher_ptr_id_cmp);
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if ((cpp == NULL) || !(*cpp)->valid)
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return(NULL);
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else
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return(*cpp);
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}
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int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
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{
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long l;
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if (p != NULL)
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{
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l=c->id;
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if ((l & 0xff000000) != 0x02000000) return(0);
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p[0]=((unsigned char)(l>>16L))&0xFF;
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p[1]=((unsigned char)(l>> 8L))&0xFF;
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p[2]=((unsigned char)(l ))&0xFF;
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}
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return(3);
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}
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void ssl2_generate_key_material(SSL *s)
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{
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unsigned int i;
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MD5_CTX ctx;
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unsigned char *km;
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unsigned char c='0';
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#ifdef CHARSET_EBCDIC
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c = os_toascii['0']; /* Must be an ASCII '0', not EBCDIC '0',
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see SSLv2 docu */
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#endif
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km=s->s2->key_material;
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for (i=0; i<s->s2->key_material_length; i+=MD5_DIGEST_LENGTH)
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{
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MD5_Init(&ctx);
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MD5_Update(&ctx,s->session->master_key,s->session->master_key_length);
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MD5_Update(&ctx,&c,1);
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c++;
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MD5_Update(&ctx,s->s2->challenge,s->s2->challenge_length);
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MD5_Update(&ctx,s->s2->conn_id,s->s2->conn_id_length);
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MD5_Final(km,&ctx);
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km+=MD5_DIGEST_LENGTH;
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}
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}
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void ssl2_return_error(SSL *s, int err)
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{
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if (!s->error)
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{
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s->error=3;
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s->error_code=err;
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ssl2_write_error(s);
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}
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}
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void ssl2_write_error(SSL *s)
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{
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unsigned char buf[3];
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int i,error;
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buf[0]=SSL2_MT_ERROR;
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buf[1]=(s->error_code>>8)&0xff;
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buf[2]=(s->error_code)&0xff;
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/* state=s->rwstate;*/
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error=s->error;
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s->error=0;
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i=ssl2_write(s,&(buf[3-error]),error);
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/* if (i == error) s->rwstate=state; */
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if (i < 0)
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s->error=error;
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else if (i != s->error)
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s->error=error-i;
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/* else
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s->error=0; */
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}
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int ssl2_shutdown(SSL *s)
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{
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s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
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return(1);
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}
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#else /* !NO_SSL2 */
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# if PEDANTIC
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static void *dummy=&dummy;
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# endif
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#endif
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