s3_lib.c

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/* ssl/s3_lib.c */
/* Copyright (C) 1995-1998 Eric Young ([e-mail])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([e-mail]).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * 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 ([e-mail]).
 * 
 * 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
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * 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
 *     Eric Young ([e-mail])"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson ([e-mail])"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * 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.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/objects.h>
#include "ssl_locl.h"

const char *ssl3_version_str="SSLv3" OPENSSL_VERSION_PTEXT;

#define SSL3_NUM_CIPHERS	(sizeof(ssl3_ciphers)/sizeof(SSL_CIPHER))

static long ssl3_default_timeout(void );

OPENSSL_GLOBAL SSL_CIPHER ssl3_ciphers[]={
/* The RSA ciphers */
/* Cipher 01 */
	{
	1,
	SSL3_TXT_RSA_NULL_MD5,
	SSL3_CK_RSA_NULL_MD5,
	SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_MD5|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	0,
	0,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 02 */
	{
	1,
	SSL3_TXT_RSA_NULL_SHA,
	SSL3_CK_RSA_NULL_SHA,
	SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	0,
	0,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* anon DH */
/* Cipher 17 */
	{
	1,
	SSL3_TXT_ADH_RC4_40_MD5,
	SSL3_CK_ADH_RC4_40_MD5,
	SSL_kEDH |SSL_aNULL|SSL_RC4  |SSL_MD5 |SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 18 */
	{
	1,
	SSL3_TXT_ADH_RC4_128_MD5,
	SSL3_CK_ADH_RC4_128_MD5,
	SSL_kEDH |SSL_aNULL|SSL_RC4  |SSL_MD5 |SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	128,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 19 */
	{
	1,
	SSL3_TXT_ADH_DES_40_CBC_SHA,
	SSL3_CK_ADH_DES_40_CBC_SHA,
	SSL_kEDH |SSL_aNULL|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 1A */
	{
	1,
	SSL3_TXT_ADH_DES_64_CBC_SHA,
	SSL3_CK_ADH_DES_64_CBC_SHA,
	SSL_kEDH |SSL_aNULL|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 1B */
	{
	1,
	SSL3_TXT_ADH_DES_192_CBC_SHA,
	SSL3_CK_ADH_DES_192_CBC_SHA,
	SSL_kEDH |SSL_aNULL|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* RSA again */
/* Cipher 03 */
	{
	1,
	SSL3_TXT_RSA_RC4_40_MD5,
	SSL3_CK_RSA_RC4_40_MD5,
	SSL_kRSA|SSL_aRSA|SSL_RC4  |SSL_MD5 |SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 04 */
	{
	1,
	SSL3_TXT_RSA_RC4_128_MD5,
	SSL3_CK_RSA_RC4_128_MD5,
	SSL_kRSA|SSL_aRSA|SSL_RC4  |SSL_MD5|SSL_SSLV3,
	SSL_NOT_EXP|SSL_MEDIUM,
	0,
	128,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 05 */
	{
	1,
	SSL3_TXT_RSA_RC4_128_SHA,
	SSL3_CK_RSA_RC4_128_SHA,
	SSL_kRSA|SSL_aRSA|SSL_RC4  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_MEDIUM,
	0,
	128,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 06 */
	{
	1,
	SSL3_TXT_RSA_RC2_40_MD5,
	SSL3_CK_RSA_RC2_40_MD5,
	SSL_kRSA|SSL_aRSA|SSL_RC2  |SSL_MD5 |SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 07 */
	{
	1,
	SSL3_TXT_RSA_IDEA_128_SHA,
	SSL3_CK_RSA_IDEA_128_SHA,
	SSL_kRSA|SSL_aRSA|SSL_IDEA |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_MEDIUM,
	0,
	128,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 08 */
	{
	1,
	SSL3_TXT_RSA_DES_40_CBC_SHA,
	SSL3_CK_RSA_DES_40_CBC_SHA,
	SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 09 */
	{
	1,
	SSL3_TXT_RSA_DES_64_CBC_SHA,
	SSL3_CK_RSA_DES_64_CBC_SHA,
	SSL_kRSA|SSL_aRSA|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_LOW,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 0A */
	{
	1,
	SSL3_TXT_RSA_DES_192_CBC3_SHA,
	SSL3_CK_RSA_DES_192_CBC3_SHA,
	SSL_kRSA|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_HIGH,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/*  The DH ciphers */
/* Cipher 0B */
	{
	0,
	SSL3_TXT_DH_DSS_DES_40_CBC_SHA,
	SSL3_CK_DH_DSS_DES_40_CBC_SHA,
	SSL_kDHd |SSL_aDH|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 0C */
	{
	0,
	SSL3_TXT_DH_DSS_DES_64_CBC_SHA,
	SSL3_CK_DH_DSS_DES_64_CBC_SHA,
	SSL_kDHd |SSL_aDH|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_LOW,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 0D */
	{
	0,
	SSL3_TXT_DH_DSS_DES_192_CBC3_SHA,
	SSL3_CK_DH_DSS_DES_192_CBC3_SHA,
	SSL_kDHd |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_HIGH,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 0E */
	{
	0,
	SSL3_TXT_DH_RSA_DES_40_CBC_SHA,
	SSL3_CK_DH_RSA_DES_40_CBC_SHA,
	SSL_kDHr |SSL_aDH|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 0F */
	{
	0,
	SSL3_TXT_DH_RSA_DES_64_CBC_SHA,
	SSL3_CK_DH_RSA_DES_64_CBC_SHA,
	SSL_kDHr |SSL_aDH|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_LOW,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 10 */
	{
	0,
	SSL3_TXT_DH_RSA_DES_192_CBC3_SHA,
	SSL3_CK_DH_RSA_DES_192_CBC3_SHA,
	SSL_kDHr |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_HIGH,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* The Ephemeral DH ciphers */
/* Cipher 11 */
	{
	1,
	SSL3_TXT_EDH_DSS_DES_40_CBC_SHA,
	SSL3_CK_EDH_DSS_DES_40_CBC_SHA,
	SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 12 */
	{
	1,
	SSL3_TXT_EDH_DSS_DES_64_CBC_SHA,
	SSL3_CK_EDH_DSS_DES_64_CBC_SHA,
	SSL_kEDH|SSL_aDSS|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_LOW,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 13 */
	{
	1,
	SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA,
	SSL3_CK_EDH_DSS_DES_192_CBC3_SHA,
	SSL_kEDH|SSL_aDSS|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_HIGH,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 14 */
	{
	1,
	SSL3_TXT_EDH_RSA_DES_40_CBC_SHA,
	SSL3_CK_EDH_RSA_DES_40_CBC_SHA,
	SSL_kEDH|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_SSLV3,
	SSL_EXPORT|SSL_EXP40,
	0,
	40,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 15 */
	{
	1,
	SSL3_TXT_EDH_RSA_DES_64_CBC_SHA,
	SSL3_CK_EDH_RSA_DES_64_CBC_SHA,
	SSL_kEDH|SSL_aRSA|SSL_DES  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_LOW,
	0,
	56,
	56,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},
/* Cipher 16 */
	{
	1,
	SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA,
	SSL3_CK_EDH_RSA_DES_192_CBC3_SHA,
	SSL_kEDH|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP|SSL_HIGH,
	0,
	168,
	168,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* Fortezza */
/* Cipher 1C */
	{
	0,
	SSL3_TXT_FZA_DMS_NULL_SHA,
	SSL3_CK_FZA_DMS_NULL_SHA,
	SSL_kFZA|SSL_aFZA |SSL_eNULL |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	0,
	0,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* Cipher 1D */
	{
	0,
	SSL3_TXT_FZA_DMS_FZA_SHA,
	SSL3_CK_FZA_DMS_FZA_SHA,
	SSL_kFZA|SSL_aFZA |SSL_eFZA |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	0,
	0,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

/* Cipher 1E */
	{
	0,
	SSL3_TXT_FZA_DMS_RC4_SHA,
	SSL3_CK_FZA_DMS_RC4_SHA,
	SSL_kFZA|SSL_aFZA |SSL_RC4  |SSL_SHA1|SSL_SSLV3,
	SSL_NOT_EXP,
	0,
	128,
	128,
	SSL_ALL_CIPHERS,
	SSL_ALL_STRENGTHS,
	},

#if TLS1_ALLOW_EXPERIMENTAL_CIPHERSUITES
	/* New TLS Export CipherSuites */
	/* Cipher 60 */
	    {
	    1,
	    TLS1_TXT_RSA_EXPORT1024_WITH_RC4_56_MD5,
	    TLS1_CK_RSA_EXPORT1024_WITH_RC4_56_MD5,
	    SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_MD5|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    128,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 61 */
	    {
	    1,
	    TLS1_TXT_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5,
	    TLS1_CK_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5,
	    SSL_kRSA|SSL_aRSA|SSL_RC2|SSL_MD5|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    128,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 62 */
	    {
	    1,
	    TLS1_TXT_RSA_EXPORT1024_WITH_DES_CBC_SHA,
	    TLS1_CK_RSA_EXPORT1024_WITH_DES_CBC_SHA,
	    SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    56,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 63 */
	    {
	    1,
	    TLS1_TXT_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA,
	    TLS1_CK_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA,
	    SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    56,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 64 */
	    {
	    1,
	    TLS1_TXT_RSA_EXPORT1024_WITH_RC4_56_SHA,
	    TLS1_CK_RSA_EXPORT1024_WITH_RC4_56_SHA,
	    SSL_kRSA|SSL_aRSA|SSL_RC4|SSL_SHA|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    128,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 65 */
	    {
	    1,
	    TLS1_TXT_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA,
	    TLS1_CK_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA,
	    SSL_kEDH|SSL_aDSS|SSL_RC4|SSL_SHA|SSL_TLSV1,
	    SSL_EXPORT|SSL_EXP56,
	    0,
	    56,
	    128,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS,
	    },
	/* Cipher 66 */
	    {
	    1,
	    TLS1_TXT_DHE_DSS_WITH_RC4_128_SHA,
	    TLS1_CK_DHE_DSS_WITH_RC4_128_SHA,
	    SSL_kEDH|SSL_aDSS|SSL_RC4|SSL_SHA|SSL_TLSV1,
	    SSL_NOT_EXP,
	    0,
	    128,
	    128,
	    SSL_ALL_CIPHERS,
	    SSL_ALL_STRENGTHS
	    },
#endif

/* end of list */
	};

static SSL3_ENC_METHOD SSLv3_enc_data={
	ssl3_enc,
	ssl3_mac,
	ssl3_setup_key_block,
	ssl3_generate_master_secret,
	ssl3_change_cipher_state,
	ssl3_final_finish_mac,
	MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
	ssl3_cert_verify_mac,
	SSL3_MD_CLIENT_FINISHED_CONST,4,
	SSL3_MD_SERVER_FINISHED_CONST,4,
	ssl3_alert_code,
	};

static SSL_METHOD SSLv3_data= {
	SSL3_VERSION,
	ssl3_new,
	ssl3_clear,
	ssl3_free,
	ssl_undefined_function,
	ssl_undefined_function,
	ssl3_read,
	ssl3_peek,
	ssl3_write,
	ssl3_shutdown,
	ssl3_renegotiate,
	ssl3_renegotiate_check,
	ssl3_ctrl,
	ssl3_ctx_ctrl,
	ssl3_get_cipher_by_char,
	ssl3_put_cipher_by_char,
	ssl3_pending,
	ssl3_num_ciphers,
	ssl3_get_cipher,
	ssl_bad_method,
	ssl3_default_timeout,
	&SSLv3_enc_data,
	ssl_undefined_function,
	ssl3_callback_ctrl,
	ssl3_ctx_callback_ctrl,
	};

static long ssl3_default_timeout(void)
	{
	/* 2 hours, the 24 hours mentioned in the SSLv3 spec
	 * is way too long for http, the cache would over fill */
	return(60*60*2);
	}

SSL_METHOD *sslv3_base_method(void)
	{
	return(&SSLv3_data);
	}

int ssl3_num_ciphers(void)
	{
	return(SSL3_NUM_CIPHERS);
	}

SSL_CIPHER *ssl3_get_cipher(unsigned int u)
	{
	if (u < SSL3_NUM_CIPHERS)
		return(&(ssl3_ciphers[SSL3_NUM_CIPHERS-1-u]));
	else
		return(NULL);
	}

/* The problem is that it may not be the correct record type */
int ssl3_pending(SSL *s)
	{
	return(s->s3->rrec.length);
	}

int ssl3_new(SSL *s)
	{
	SSL3_STATE *s3;

	if ((s3=OPENSSL_malloc(sizeof *s3)) == NULL) goto err;
	memset(s3,0,sizeof *s3);

	s->s3=s3;

	s->method->ssl_clear(s);
	return(1);
err:
	return(0);
	}

void ssl3_free(SSL *s)
	{
	if(s == NULL)
	    return;

	ssl3_cleanup_key_block(s);
	if (s->s3->rbuf.buf != NULL)
		OPENSSL_free(s->s3->rbuf.buf);
	if (s->s3->wbuf.buf != NULL)