This was done by the following
        find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
        print unless $. == 1 && m@/\* .*\.[ch] \*/@;
        close ARGV if eof; # Close file to reset $.
And then some hand-editing of other files.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
		
	
		
			
				
	
	
		
			674 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			674 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* 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,
 | 
						|
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 | 
						|
 * included with this distribution is covered by the same copyright terms
 | 
						|
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 | 
						|
 *
 | 
						|
 * Copyright remains Eric Young's, and as such any Copyright notices in
 | 
						|
 * the code are not to be removed.
 | 
						|
 * 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
 | 
						|
 * in documentation (online or textual) provided with the package.
 | 
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 *
 | 
						|
 * Redistribution and use in source and binary forms, with or without
 | 
						|
 * modification, are permitted provided that the following conditions
 | 
						|
 * are met:
 | 
						|
 * 1. Redistributions of source code must retain the copyright
 | 
						|
 *    notice, this list of conditions and the following disclaimer.
 | 
						|
 * 2. Redistributions in binary form must reproduce the above copyright
 | 
						|
 *    notice, this list of conditions and the following disclaimer in the
 | 
						|
 *    documentation and/or other materials provided with the distribution.
 | 
						|
 * 3. All advertising materials mentioning features or use of this software
 | 
						|
 *    must display the following acknowledgement:
 | 
						|
 *    "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:
 | 
						|
 *    "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
 | 
						|
 * 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
 | 
						|
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 | 
						|
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 | 
						|
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 | 
						|
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 | 
						|
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 | 
						|
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 | 
						|
 * SUCH DAMAGE.
 | 
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 *
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 * The licence and distribution terms for any publically available version or
 | 
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 * derivative of this code cannot be changed.  i.e. this code cannot simply be
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 * copied and put under another distribution licence
 | 
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 * [including the GNU Public Licence.]
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 */
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/* ====================================================================
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 * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
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 *
 | 
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 * Redistribution and use in source and binary forms, with or without
 | 
						|
 * modification, are permitted provided that the following conditions
 | 
						|
 * are met:
 | 
						|
 *
 | 
						|
 * 1. Redistributions of source code must retain the above copyright
 | 
						|
 *    notice, this list of conditions and the following disclaimer.
 | 
						|
 *
 | 
						|
 * 2. Redistributions in binary form must reproduce the above copyright
 | 
						|
 *    notice, this list of conditions and the following disclaimer in
 | 
						|
 *    the documentation and/or other materials provided with the
 | 
						|
 *    distribution.
 | 
						|
 *
 | 
						|
 * 3. All advertising materials mentioning features or use of this
 | 
						|
 *    software must display the following acknowledgment:
 | 
						|
 *    "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;
 | 
						|
 * 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 2005 Nokia. All rights reserved.
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 *
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 * The portions of the attached software ("Contribution") is developed by
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 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
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 * license.
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 *
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 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
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 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
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 * support (see RFC 4279) to OpenSSL.
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 *
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 * No patent licenses or other rights except those expressly stated in
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 * the OpenSSL open source license shall be deemed granted or received
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 * expressly, by implication, estoppel, or otherwise.
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 *
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 * No assurances are provided by Nokia that the Contribution does not
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 * infringe the patent or other intellectual property rights of any third
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 * party or that the license provides you with all the necessary rights
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 * to make use of the Contribution.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
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 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
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 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
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 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
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 * OTHERWISE.
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 */
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#include <stdio.h>
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#include "ssl_locl.h"
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#include <openssl/evp.h>
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#include <openssl/md5.h>
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static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
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{
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    EVP_MD_CTX *m5;
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    EVP_MD_CTX *s1;
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    unsigned char buf[16], smd[SHA_DIGEST_LENGTH];
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    unsigned char c = 'A';
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    unsigned int i, j, k;
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    int ret = 0;
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#ifdef CHARSET_EBCDIC
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    c = os_toascii[c];          /* 'A' in ASCII */
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#endif
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    k = 0;
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    m5 = EVP_MD_CTX_new();
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    s1 = EVP_MD_CTX_new();
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    if (m5 == NULL || s1 == NULL) {
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        SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
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        goto err;
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    }
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    EVP_MD_CTX_set_flags(m5, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
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    for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) {
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        k++;
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        if (k > sizeof buf) {
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            /* bug: 'buf' is too small for this ciphersuite */
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            SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR);
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            return 0;
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        }
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        for (j = 0; j < k; j++)
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            buf[j] = c;
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        c++;
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        EVP_DigestInit_ex(s1, EVP_sha1(), NULL);
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        EVP_DigestUpdate(s1, buf, k);
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        EVP_DigestUpdate(s1, s->session->master_key,
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                         s->session->master_key_length);
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        EVP_DigestUpdate(s1, s->s3->server_random, SSL3_RANDOM_SIZE);
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        EVP_DigestUpdate(s1, s->s3->client_random, SSL3_RANDOM_SIZE);
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        EVP_DigestFinal_ex(s1, smd, NULL);
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        EVP_DigestInit_ex(m5, EVP_md5(), NULL);
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        EVP_DigestUpdate(m5, s->session->master_key,
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                         s->session->master_key_length);
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        EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH);
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        if ((int)(i + MD5_DIGEST_LENGTH) > num) {
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            EVP_DigestFinal_ex(m5, smd, NULL);
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            memcpy(km, smd, (num - i));
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        } else
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            EVP_DigestFinal_ex(m5, km, NULL);
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        km += MD5_DIGEST_LENGTH;
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    }
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    OPENSSL_cleanse(smd, sizeof(smd));
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    ret = 1;
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 err:
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    EVP_MD_CTX_free(m5);
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    EVP_MD_CTX_free(s1);
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    return ret;
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}
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int ssl3_change_cipher_state(SSL *s, int which)
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{
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    unsigned char *p, *mac_secret;
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    unsigned char exp_key[EVP_MAX_KEY_LENGTH];
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    unsigned char exp_iv[EVP_MAX_IV_LENGTH];
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    unsigned char *ms, *key, *iv;
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    EVP_CIPHER_CTX *dd;
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    const EVP_CIPHER *c;
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#ifndef OPENSSL_NO_COMP
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    COMP_METHOD *comp;
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#endif
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    const EVP_MD *m;
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    int n, i, j, k, cl;
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    int reuse_dd = 0;
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    c = s->s3->tmp.new_sym_enc;
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    m = s->s3->tmp.new_hash;
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    /* m == NULL will lead to a crash later */
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    OPENSSL_assert(m);
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#ifndef OPENSSL_NO_COMP
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    if (s->s3->tmp.new_compression == NULL)
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        comp = NULL;
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    else
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        comp = s->s3->tmp.new_compression->method;
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#endif
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    if (which & SSL3_CC_READ) {
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        if (s->enc_read_ctx != NULL)
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            reuse_dd = 1;
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        else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL)
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            goto err;
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        else
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            /*
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             * make sure it's intialized in case we exit later with an error
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             */
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            EVP_CIPHER_CTX_reset(s->enc_read_ctx);
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        dd = s->enc_read_ctx;
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        if (ssl_replace_hash(&s->read_hash, m) == NULL) {
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                SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
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                goto err2;
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        }
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#ifndef OPENSSL_NO_COMP
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        /* COMPRESS */
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        COMP_CTX_free(s->expand);
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        s->expand = NULL;
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        if (comp != NULL) {
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            s->expand = COMP_CTX_new(comp);
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						|
            if (s->expand == NULL) {
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                SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,
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                       SSL_R_COMPRESSION_LIBRARY_ERROR);
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                goto err2;
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            }
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            if (!RECORD_LAYER_setup_comp_buffer(&s->rlayer))
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                goto err;
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        }
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#endif
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        RECORD_LAYER_reset_read_sequence(&s->rlayer);
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        mac_secret = &(s->s3->read_mac_secret[0]);
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    } else {
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        if (s->enc_write_ctx != NULL)
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            reuse_dd = 1;
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        else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL)
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            goto err;
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        else
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            /*
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             * make sure it's intialized in case we exit later with an error
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             */
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            EVP_CIPHER_CTX_reset(s->enc_write_ctx);
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        dd = s->enc_write_ctx;
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        if (ssl_replace_hash(&s->write_hash, m) == NULL) {
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                SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
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                goto err2;
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        }
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#ifndef OPENSSL_NO_COMP
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        /* COMPRESS */
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        COMP_CTX_free(s->compress);
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        s->compress = NULL;
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						|
        if (comp != NULL) {
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            s->compress = COMP_CTX_new(comp);
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						|
            if (s->compress == NULL) {
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                SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,
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                       SSL_R_COMPRESSION_LIBRARY_ERROR);
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                goto err2;
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            }
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        }
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#endif
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        RECORD_LAYER_reset_write_sequence(&s->rlayer);
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        mac_secret = &(s->s3->write_mac_secret[0]);
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    }
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 | 
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    if (reuse_dd)
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        EVP_CIPHER_CTX_reset(dd);
 | 
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 | 
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    p = s->s3->tmp.key_block;
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						|
    i = EVP_MD_size(m);
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						|
    if (i < 0)
 | 
						|
        goto err2;
 | 
						|
    cl = EVP_CIPHER_key_length(c);
 | 
						|
    j = cl;
 | 
						|
    k = EVP_CIPHER_iv_length(c);
 | 
						|
    if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
 | 
						|
        (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
 | 
						|
        ms = &(p[0]);
 | 
						|
        n = i + i;
 | 
						|
        key = &(p[n]);
 | 
						|
        n += j + j;
 | 
						|
        iv = &(p[n]);
 | 
						|
        n += k + k;
 | 
						|
    } else {
 | 
						|
        n = i;
 | 
						|
        ms = &(p[n]);
 | 
						|
        n += i + j;
 | 
						|
        key = &(p[n]);
 | 
						|
        n += j + k;
 | 
						|
        iv = &(p[n]);
 | 
						|
        n += k;
 | 
						|
    }
 | 
						|
 | 
						|
    if (n > s->s3->tmp.key_block_length) {
 | 
						|
        SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
 | 
						|
        goto err2;
 | 
						|
    }
 | 
						|
 | 
						|
    memcpy(mac_secret, ms, i);
 | 
						|
 | 
						|
    EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE));
 | 
						|
 | 
						|
#ifdef OPENSSL_SSL_TRACE_CRYPTO
 | 
						|
    if (s->msg_callback) {
 | 
						|
 | 
						|
        int wh = which & SSL3_CC_WRITE ?
 | 
						|
            TLS1_RT_CRYPTO_WRITE : TLS1_RT_CRYPTO_READ;
 | 
						|
        s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC,
 | 
						|
                        mac_secret, EVP_MD_size(m), s, s->msg_callback_arg);
 | 
						|
        if (c->key_len)
 | 
						|
            s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY,
 | 
						|
                            key, c->key_len, s, s->msg_callback_arg);
 | 
						|
        if (k) {
 | 
						|
            s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_IV,
 | 
						|
                            iv, k, s, s->msg_callback_arg);
 | 
						|
        }
 | 
						|
    }
 | 
						|
#endif
 | 
						|
 | 
						|
    OPENSSL_cleanse(exp_key, sizeof(exp_key));
 | 
						|
    OPENSSL_cleanse(exp_iv, sizeof(exp_iv));
 | 
						|
    return (1);
 | 
						|
 err:
 | 
						|
    SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
 | 
						|
 err2:
 | 
						|
    OPENSSL_cleanse(exp_key, sizeof(exp_key));
 | 
						|
    OPENSSL_cleanse(exp_iv, sizeof(exp_iv));
 | 
						|
    return (0);
 | 
						|
}
 | 
						|
 | 
						|
int ssl3_setup_key_block(SSL *s)
 | 
						|
{
 | 
						|
    unsigned char *p;
 | 
						|
    const EVP_CIPHER *c;
 | 
						|
    const EVP_MD *hash;
 | 
						|
    int num;
 | 
						|
    int ret = 0;
 | 
						|
    SSL_COMP *comp;
 | 
						|
 | 
						|
    if (s->s3->tmp.key_block_length != 0)
 | 
						|
        return (1);
 | 
						|
 | 
						|
    if (!ssl_cipher_get_evp(s->session, &c, &hash, NULL, NULL, &comp, 0)) {
 | 
						|
        SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK, SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
 | 
						|
        return (0);
 | 
						|
    }
 | 
						|
 | 
						|
    s->s3->tmp.new_sym_enc = c;
 | 
						|
    s->s3->tmp.new_hash = hash;
 | 
						|
#ifdef OPENSSL_NO_COMP
 | 
						|
    s->s3->tmp.new_compression = NULL;
 | 
						|
#else
 | 
						|
    s->s3->tmp.new_compression = comp;
 | 
						|
#endif
 | 
						|
 | 
						|
    num = EVP_MD_size(hash);
 | 
						|
    if (num < 0)
 | 
						|
        return 0;
 | 
						|
 | 
						|
    num = EVP_CIPHER_key_length(c) + num + EVP_CIPHER_iv_length(c);
 | 
						|
    num *= 2;
 | 
						|
 | 
						|
    ssl3_cleanup_key_block(s);
 | 
						|
 | 
						|
    if ((p = OPENSSL_malloc(num)) == NULL)
 | 
						|
        goto err;
 | 
						|
 | 
						|
    s->s3->tmp.key_block_length = num;
 | 
						|
    s->s3->tmp.key_block = p;
 | 
						|
 | 
						|
    ret = ssl3_generate_key_block(s, p, num);
 | 
						|
 | 
						|
    if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) {
 | 
						|
        /*
 | 
						|
         * enable vulnerability countermeasure for CBC ciphers with known-IV
 | 
						|
         * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
 | 
						|
         */
 | 
						|
        s->s3->need_empty_fragments = 1;
 | 
						|
 | 
						|
        if (s->session->cipher != NULL) {
 | 
						|
            if (s->session->cipher->algorithm_enc == SSL_eNULL)
 | 
						|
                s->s3->need_empty_fragments = 0;
 | 
						|
 | 
						|
#ifndef OPENSSL_NO_RC4
 | 
						|
            if (s->session->cipher->algorithm_enc == SSL_RC4)
 | 
						|
                s->s3->need_empty_fragments = 0;
 | 
						|
#endif
 | 
						|
        }
 | 
						|
    }
 | 
						|
 | 
						|
    return ret;
 | 
						|
 | 
						|
 err:
 | 
						|
    SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
 | 
						|
    return (0);
 | 
						|
}
 | 
						|
 | 
						|
void ssl3_cleanup_key_block(SSL *s)
 | 
						|
{
 | 
						|
    OPENSSL_clear_free(s->s3->tmp.key_block, s->s3->tmp.key_block_length);
 | 
						|
    s->s3->tmp.key_block = NULL;
 | 
						|
    s->s3->tmp.key_block_length = 0;
 | 
						|
}
 | 
						|
 | 
						|
void ssl3_init_finished_mac(SSL *s)
 | 
						|
{
 | 
						|
    ssl3_free_digest_list(s);
 | 
						|
    s->s3->handshake_buffer = BIO_new(BIO_s_mem());
 | 
						|
    (void)BIO_set_close(s->s3->handshake_buffer, BIO_CLOSE);
 | 
						|
}
 | 
						|
 | 
						|
/*
 | 
						|
 * Free digest list. Also frees handshake buffer since they are always freed
 | 
						|
 * together.
 | 
						|
 */
 | 
						|
 | 
						|
void ssl3_free_digest_list(SSL *s)
 | 
						|
{
 | 
						|
    BIO_free(s->s3->handshake_buffer);
 | 
						|
    s->s3->handshake_buffer = NULL;
 | 
						|
    EVP_MD_CTX_free(s->s3->handshake_dgst);
 | 
						|
    s->s3->handshake_dgst = NULL;
 | 
						|
}
 | 
						|
 | 
						|
void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len)
 | 
						|
{
 | 
						|
    if (s->s3->handshake_dgst == NULL)
 | 
						|
        BIO_write(s->s3->handshake_buffer, (void *)buf, len);
 | 
						|
    else
 | 
						|
        EVP_DigestUpdate(s->s3->handshake_dgst, buf, len);
 | 
						|
}
 | 
						|
 | 
						|
int ssl3_digest_cached_records(SSL *s, int keep)
 | 
						|
{
 | 
						|
    const EVP_MD *md;
 | 
						|
    long hdatalen;
 | 
						|
    void *hdata;
 | 
						|
 | 
						|
    if (s->s3->handshake_dgst == NULL) {
 | 
						|
        hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
 | 
						|
        if (hdatalen <= 0) {
 | 
						|
            SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, SSL_R_BAD_HANDSHAKE_LENGTH);
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
 | 
						|
        s->s3->handshake_dgst = EVP_MD_CTX_new();
 | 
						|
        if (s->s3->handshake_dgst == NULL) {
 | 
						|
            SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_MALLOC_FAILURE);
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
 | 
						|
        md = ssl_handshake_md(s);
 | 
						|
        if (md == NULL) {
 | 
						|
            SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_INTERNAL_ERROR);
 | 
						|
            return 0;
 | 
						|
        }
 | 
						|
 | 
						|
        EVP_DigestInit_ex(s->s3->handshake_dgst, md, NULL);
 | 
						|
        EVP_DigestUpdate(s->s3->handshake_dgst, hdata, hdatalen);
 | 
						|
 | 
						|
    }
 | 
						|
    if (keep == 0) {
 | 
						|
        BIO_free(s->s3->handshake_buffer);
 | 
						|
        s->s3->handshake_buffer = NULL;
 | 
						|
    }
 | 
						|
 | 
						|
    return 1;
 | 
						|
}
 | 
						|
 | 
						|
int ssl3_final_finish_mac(SSL *s, const char *sender, int len, unsigned char *p)
 | 
						|
{
 | 
						|
    int ret;
 | 
						|
    EVP_MD_CTX *ctx = NULL;
 | 
						|
 | 
						|
    if (!ssl3_digest_cached_records(s, 0))
 | 
						|
        return 0;
 | 
						|
 | 
						|
    if (EVP_MD_CTX_type(s->s3->handshake_dgst) != NID_md5_sha1) {
 | 
						|
        SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, SSL_R_NO_REQUIRED_DIGEST);
 | 
						|
        return 0;
 | 
						|
    }
 | 
						|
 | 
						|
    ctx = EVP_MD_CTX_new();
 | 
						|
    if (ctx == NULL) {
 | 
						|
        SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_MALLOC_FAILURE);
 | 
						|
        return 0;
 | 
						|
    }
 | 
						|
    EVP_MD_CTX_copy_ex(ctx, s->s3->handshake_dgst);
 | 
						|
 | 
						|
    ret = EVP_MD_CTX_size(ctx);
 | 
						|
    if (ret < 0) {
 | 
						|
        EVP_MD_CTX_reset(ctx);
 | 
						|
        return 0;
 | 
						|
    }
 | 
						|
 | 
						|
    if ((sender != NULL && EVP_DigestUpdate(ctx, sender, len) <= 0)
 | 
						|
            || EVP_MD_CTX_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
 | 
						|
                               s->session->master_key_length,
 | 
						|
                               s->session->master_key) <= 0
 | 
						|
            || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) {
 | 
						|
        SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_INTERNAL_ERROR);
 | 
						|
        ret = 0;
 | 
						|
    }
 | 
						|
 | 
						|
    EVP_MD_CTX_free(ctx);
 | 
						|
 | 
						|
    return ret;
 | 
						|
}
 | 
						|
 | 
						|
int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
 | 
						|
                                int len)
 | 
						|
{
 | 
						|
    static const unsigned char *salt[3] = {
 | 
						|
#ifndef CHARSET_EBCDIC
 | 
						|
        (const unsigned char *)"A",
 | 
						|
        (const unsigned char *)"BB",
 | 
						|
        (const unsigned char *)"CCC",
 | 
						|
#else
 | 
						|
        (const unsigned char *)"\x41",
 | 
						|
        (const unsigned char *)"\x42\x42",
 | 
						|
        (const unsigned char *)"\x43\x43\x43",
 | 
						|
#endif
 | 
						|
    };
 | 
						|
    unsigned char buf[EVP_MAX_MD_SIZE];
 | 
						|
    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
 | 
						|
    int i, ret = 0;
 | 
						|
    unsigned int n;
 | 
						|
#ifdef OPENSSL_SSL_TRACE_CRYPTO
 | 
						|
    unsigned char *tmpout = out;
 | 
						|
#endif
 | 
						|
 | 
						|
    if (ctx == NULL) {
 | 
						|
        SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_MALLOC_FAILURE);
 | 
						|
        return 0;
 | 
						|
    }
 | 
						|
    for (i = 0; i < 3; i++) {
 | 
						|
        if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, salt[i],
 | 
						|
                                    strlen((const char *)salt[i])) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, p, len) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, &(s->s3->client_random[0]),
 | 
						|
                                    SSL3_RANDOM_SIZE) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, &(s->s3->server_random[0]),
 | 
						|
                                    SSL3_RANDOM_SIZE) <= 0
 | 
						|
                || EVP_DigestFinal_ex(ctx, buf, &n) <= 0
 | 
						|
 | 
						|
                || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, p, len) <= 0
 | 
						|
                || EVP_DigestUpdate(ctx, buf, n) <= 0
 | 
						|
                || EVP_DigestFinal_ex(ctx, out, &n) <= 0) {
 | 
						|
            SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_INTERNAL_ERROR);
 | 
						|
            ret = 0;
 | 
						|
            break;
 | 
						|
        }
 | 
						|
        out += n;
 | 
						|
        ret += n;
 | 
						|
    }
 | 
						|
    EVP_MD_CTX_free(ctx);
 | 
						|
 | 
						|
#ifdef OPENSSL_SSL_TRACE_CRYPTO
 | 
						|
    if (ret > 0 && s->msg_callback) {
 | 
						|
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
 | 
						|
                        p, len, s, s->msg_callback_arg);
 | 
						|
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
 | 
						|
                        s->s3->client_random, SSL3_RANDOM_SIZE,
 | 
						|
                        s, s->msg_callback_arg);
 | 
						|
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
 | 
						|
                        s->s3->server_random, SSL3_RANDOM_SIZE,
 | 
						|
                        s, s->msg_callback_arg);
 | 
						|
        s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
 | 
						|
                        tmpout, SSL3_MASTER_SECRET_SIZE,
 | 
						|
                        s, s->msg_callback_arg);
 | 
						|
    }
 | 
						|
#endif
 | 
						|
    OPENSSL_cleanse(buf, sizeof(buf));
 | 
						|
    return (ret);
 | 
						|
}
 | 
						|
 | 
						|
int ssl3_alert_code(int code)
 | 
						|
{
 | 
						|
    switch (code) {
 | 
						|
    case SSL_AD_CLOSE_NOTIFY:
 | 
						|
        return (SSL3_AD_CLOSE_NOTIFY);
 | 
						|
    case SSL_AD_UNEXPECTED_MESSAGE:
 | 
						|
        return (SSL3_AD_UNEXPECTED_MESSAGE);
 | 
						|
    case SSL_AD_BAD_RECORD_MAC:
 | 
						|
        return (SSL3_AD_BAD_RECORD_MAC);
 | 
						|
    case SSL_AD_DECRYPTION_FAILED:
 | 
						|
        return (SSL3_AD_BAD_RECORD_MAC);
 | 
						|
    case SSL_AD_RECORD_OVERFLOW:
 | 
						|
        return (SSL3_AD_BAD_RECORD_MAC);
 | 
						|
    case SSL_AD_DECOMPRESSION_FAILURE:
 | 
						|
        return (SSL3_AD_DECOMPRESSION_FAILURE);
 | 
						|
    case SSL_AD_HANDSHAKE_FAILURE:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_NO_CERTIFICATE:
 | 
						|
        return (SSL3_AD_NO_CERTIFICATE);
 | 
						|
    case SSL_AD_BAD_CERTIFICATE:
 | 
						|
        return (SSL3_AD_BAD_CERTIFICATE);
 | 
						|
    case SSL_AD_UNSUPPORTED_CERTIFICATE:
 | 
						|
        return (SSL3_AD_UNSUPPORTED_CERTIFICATE);
 | 
						|
    case SSL_AD_CERTIFICATE_REVOKED:
 | 
						|
        return (SSL3_AD_CERTIFICATE_REVOKED);
 | 
						|
    case SSL_AD_CERTIFICATE_EXPIRED:
 | 
						|
        return (SSL3_AD_CERTIFICATE_EXPIRED);
 | 
						|
    case SSL_AD_CERTIFICATE_UNKNOWN:
 | 
						|
        return (SSL3_AD_CERTIFICATE_UNKNOWN);
 | 
						|
    case SSL_AD_ILLEGAL_PARAMETER:
 | 
						|
        return (SSL3_AD_ILLEGAL_PARAMETER);
 | 
						|
    case SSL_AD_UNKNOWN_CA:
 | 
						|
        return (SSL3_AD_BAD_CERTIFICATE);
 | 
						|
    case SSL_AD_ACCESS_DENIED:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_DECODE_ERROR:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_DECRYPT_ERROR:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_EXPORT_RESTRICTION:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_PROTOCOL_VERSION:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_INSUFFICIENT_SECURITY:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_INTERNAL_ERROR:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_USER_CANCELLED:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_NO_RENEGOTIATION:
 | 
						|
        return (-1);            /* Don't send it :-) */
 | 
						|
    case SSL_AD_UNSUPPORTED_EXTENSION:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_CERTIFICATE_UNOBTAINABLE:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_UNRECOGNIZED_NAME:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
 | 
						|
        return (SSL3_AD_HANDSHAKE_FAILURE);
 | 
						|
    case SSL_AD_UNKNOWN_PSK_IDENTITY:
 | 
						|
        return (TLS1_AD_UNKNOWN_PSK_IDENTITY);
 | 
						|
    case SSL_AD_INAPPROPRIATE_FALLBACK:
 | 
						|
        return (TLS1_AD_INAPPROPRIATE_FALLBACK);
 | 
						|
    default:
 | 
						|
        return (-1);
 | 
						|
    }
 | 
						|
}
 |