mirrors/openssl
0
0
Fork 0
mirror of https://github.com/openssl/openssl.git synced 2024-11-26 03:24:02 +08:00
Code Issues Packages Projects Releases Wiki Activity
7eea36bb48
openssl/ssl/s3_lib.c
Bodo Möller 7f0dae3276 OPENSSL_EXTERN, OPENSSL_GLOBAL
1999-05-15 14:23:29 +00:00

1108 lines
23 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* ssl/s3_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* 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 (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
* 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 (eay@cryptsoft.com)"
* 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 (tjh@cryptsoft.com)"
*
* 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_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 02 */
{
1,
SSL3_TXT_RSA_NULL_SHA,
SSL3_CK_RSA_NULL_SHA,
SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 18 */
{
1,
SSL3_TXT_ADH_RC4_128_MD5,
SSL3_CK_ADH_RC4_128_MD5,
SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 04 */
{
1,
SSL3_TXT_RSA_RC4_128_MD5,
SSL3_CK_RSA_RC4_128_MD5,
SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 05 */
{
1,
SSL3_TXT_RSA_RC4_128_SHA,
SSL3_CK_RSA_RC4_128_SHA,
SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 06 */
{
1,
SSL3_TXT_RSA_RC2_40_MD5,
SSL3_CK_RSA_RC2_40_MD5,
SSL_kRSA|SSL_aRSA|SSL_RC2 |SSL_MD5 |SSL_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 07 */
{
1,
SSL3_TXT_RSA_IDEA_128_SHA,
SSL3_CK_RSA_IDEA_128_SHA,
SSL_kRSA|SSL_aRSA|SSL_IDEA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_LOW,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_HIGH,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_LOW,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_HIGH,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_LOW,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_HIGH,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_LOW,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_HIGH,
0,
SSL_ALL_CIPHERS,
},
/* 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_EXP40|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_LOW,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3|SSL_HIGH,
0,
SSL_ALL_CIPHERS,
},
/* 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_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 1D */
{
0,
SSL3_TXT_FZA_DMS_FZA_SHA,
SSL3_CK_FZA_DMS_FZA_SHA,
SSL_kFZA|SSL_aFZA |SSL_eFZA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
/* Cipher 1E */
{
0,
SSL3_TXT_FZA_DMS_RC4_SHA,
SSL3_CK_FZA_DMS_RC4_SHA,
SSL_kFZA|SSL_aFZA |SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
0,
SSL_ALL_CIPHERS,
},
#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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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_EXP56|SSL_TLSV1,
0,
SSL_ALL_CIPHERS
},
/* 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,
0,
SSL_ALL_CIPHERS
},
#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,
};
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_CTX *s3;
if ((s3=(SSL3_CTX *)Malloc(sizeof(SSL3_CTX))) == NULL) goto err;
memset(s3,0,sizeof(SSL3_CTX));
s->s3=s3;
/*
s->s3->tmp.ca_names=NULL;
s->s3->tmp.key_block=NULL;
s->s3->tmp.key_block_length=0;
s->s3->rbuf.buf=NULL;
s->s3->wbuf.buf=NULL;
*/
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)
Free(s->s3->rbuf.buf);
if (s->s3->wbuf.buf != NULL)
Free(s->s3->wbuf.buf);
if (s->s3->rrec.comp != NULL)
Free(s->s3->rrec.comp);
#ifndef NO_DH
if (s->s3->tmp.dh != NULL)
DH_free(s->s3->tmp.dh);
#endif
if (s->s3->tmp.ca_names != NULL)
sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
memset(s->s3,0,sizeof(SSL3_CTX));
Free(s->s3);
s->s3=NULL;
}
void ssl3_clear(SSL *s)
{
unsigned char *rp,*wp;
ssl3_cleanup_key_block(s);
if (s->s3->tmp.ca_names != NULL)
sk_X509_NAME_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
if (s->s3->rrec.comp != NULL)
{
Free(s->s3->rrec.comp);
s->s3->rrec.comp=NULL;
}
rp=s->s3->rbuf.buf;
wp=s->s3->wbuf.buf;
memset(s->s3,0,sizeof(SSL3_CTX));
if (rp != NULL) s->s3->rbuf.buf=rp;
if (wp != NULL) s->s3->wbuf.buf=wp;
ssl_free_wbio_buffer(s);
s->packet_length=0;
s->s3->renegotiate=0;
s->s3->total_renegotiations=0;
s->s3->num_renegotiations=0;
s->s3->in_read_app_data=0;
s->version=SSL3_VERSION;
}
long ssl3_ctrl(SSL *s, int cmd, long larg, char *parg)
{
int ret=0;
#if !defined(NO_DSA) || !defined(NO_RSA)
if (
#ifndef NO_RSA
cmd == SSL_CTRL_SET_TMP_RSA ||
cmd == SSL_CTRL_SET_TMP_RSA_CB ||
#endif
#ifndef NO_DSA
cmd == SSL_CTRL_SET_TMP_DH ||
cmd == SSL_CTRL_SET_TMP_DH_CB ||
#endif
0)
{
if (!ssl_cert_inst(&s->cert))
{
SSLerr(SSL_F_SSL3_CTRL, ERR_R_MALLOC_FAILURE);
return(0);
}
}
#endif
switch (cmd)
{
case SSL_CTRL_GET_SESSION_REUSED:
ret=s->hit;
break;
case SSL_CTRL_GET_CLIENT_CERT_REQUEST:
break;
case SSL_CTRL_GET_NUM_RENEGOTIATIONS:
ret=s->s3->num_renegotiations;
break;
case SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS:
ret=s->s3->num_renegotiations;
s->s3->num_renegotiations=0;
break;
case SSL_CTRL_GET_TOTAL_RENEGOTIATIONS:
ret=s->s3->total_renegotiations;
break;
case SSL_CTRL_GET_FLAGS:
ret=(int)(s->s3->flags);
break;
#ifndef NO_RSA
case SSL_CTRL_NEED_TMP_RSA:
if ((s->cert != NULL) && (s->cert->rsa_tmp == NULL) &&
((s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
(EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8))))
ret = 1;
break;
case SSL_CTRL_SET_TMP_RSA:
{
RSA *rsa = (RSA *)parg;
if (rsa == NULL) {
SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
return(ret);
}
if ((rsa = RSAPrivateKey_dup(rsa)) == NULL) {
SSLerr(SSL_F_SSL3_CTRL, ERR_R_RSA_LIB);
return(ret);
}
if (s->cert->rsa_tmp != NULL)
RSA_free(s->cert->rsa_tmp);
s->cert->rsa_tmp = rsa;
ret = 1;
}
break;
case SSL_CTRL_SET_TMP_RSA_CB:
s->cert->rsa_tmp_cb = (RSA *(*)(SSL *, int, int))parg;
break;
#endif
#ifndef NO_DH
case SSL_CTRL_SET_TMP_DH:
{
DH *dh = (DH *)parg;
if (dh == NULL) {
SSLerr(SSL_F_SSL3_CTRL, ERR_R_PASSED_NULL_PARAMETER);
return(ret);
}
if ((dh = DHparams_dup(dh)) == NULL) {
SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
return(ret);
}
if (!DH_generate_key(dh)) {
DH_free(dh);
SSLerr(SSL_F_SSL3_CTRL, ERR_R_DH_LIB);
return(ret);
}
if (s->cert->dh_tmp != NULL)
DH_free(s->cert->dh_tmp);
s->cert->dh_tmp = dh;
ret = 1;
}
break;
case SSL_CTRL_SET_TMP_DH_CB:
s->cert->dh_tmp_cb = (DH *(*)(SSL *, int, int))parg;
break;
#endif
default:
break;
}
return(ret);
}
long ssl3_ctx_ctrl(SSL_CTX *ctx, int cmd, long larg, char *parg)
{
CERT *cert;
cert=ctx->cert;
switch (cmd)
{
#ifndef NO_RSA
case SSL_CTRL_NEED_TMP_RSA:
if ( (cert->rsa_tmp == NULL) &&
((cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
(EVP_PKEY_size(cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8)))
)
return(1);
else
return(0);
/* break; */
case SSL_CTRL_SET_TMP_RSA:
{
RSA *rsa;
int i;
rsa=(RSA *)parg;
i=1;
if (rsa == NULL)
i=0;
else
{
if ((rsa=RSAPrivateKey_dup(rsa)) == NULL)
i=0;
}
if (!i)
{
SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_RSA_LIB);
return(0);
}
else
{
if (cert->rsa_tmp != NULL)
RSA_free(cert->rsa_tmp);
cert->rsa_tmp=rsa;
return(1);
}
}
/* break; */
case SSL_CTRL_SET_TMP_RSA_CB:
cert->rsa_tmp_cb=(RSA *(*)(SSL *, int, int))parg;
break;
#endif
#ifndef NO_DH
case SSL_CTRL_SET_TMP_DH:
{
DH *new=NULL,*dh;
int rret=0;
dh=(DH *)parg;
if ( ((new=DHparams_dup(dh)) == NULL) ||
(!DH_generate_key(new)))
{
SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_DH_LIB);
if (new != NULL) DH_free(new);
}
else
{
if (cert->dh_tmp != NULL)
DH_free(cert->dh_tmp);
cert->dh_tmp=new;
rret=1;
}
return(rret);
}
/*break; */
case SSL_CTRL_SET_TMP_DH_CB:
cert->dh_tmp_cb=(DH *(*)(SSL *, int, int))parg;
break;
#endif
/* A Thawte special :-) */
case SSL_CTRL_EXTRA_CHAIN_CERT:
if (ctx->extra_certs == NULL)
{
if ((ctx->extra_certs=sk_X509_new_null()) == NULL)
return(0);
}
sk_X509_push(ctx->extra_certs,(X509 *)parg);
break;
default:
return(0);
}
return(1);
}
/* This function needs to check if the ciphers required are actually
* available */
SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p)
{
static int init=1;
static SSL_CIPHER *sorted[SSL3_NUM_CIPHERS];
SSL_CIPHER c,*cp= &c,**cpp;
unsigned long id;
int i;
if (init)
{
CRYPTO_w_lock(CRYPTO_LOCK_SSL);
for (i=0; i<SSL3_NUM_CIPHERS; i++)
sorted[i]= &(ssl3_ciphers[i]);
qsort( (char *)sorted,
SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
FP_ICC ssl_cipher_ptr_id_cmp);
CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
init=0;
}
id=0x03000000L|((unsigned long)p[0]<<8L)|(unsigned long)p[1];
c.id=id;
cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
(char *)sorted,
SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
(int (*)())ssl_cipher_ptr_id_cmp);
if ((cpp == NULL) || !(*cpp)->valid)
return(NULL);
else
return(*cpp);
}
int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p)
{
long l;
if (p != NULL)
{
l=c->id;
if ((l & 0xff000000) != 0x03000000) return(0);
p[0]=((unsigned char)(l>> 8L))&0xFF;
p[1]=((unsigned char)(l ))&0xFF;
}
return(2);
}
int ssl3_part_read(SSL *s, int i)
{
s->rwstate=SSL_READING;
if (i < 0)
{
return(i);
}
else
{
s->init_num+=i;
return(0);
}
}
SSL_CIPHER *ssl3_choose_cipher(SSL *s, STACK_OF(SSL_CIPHER) *have,
STACK_OF(SSL_CIPHER) *pref)
{
SSL_CIPHER *c,*ret=NULL;
int i,j,ok;
CERT *cert;
unsigned long alg,mask,emask;
/* Let's see which ciphers we can support */
cert=s->cert;
sk_SSL_CIPHER_set_cmp_func(pref,ssl_cipher_ptr_id_cmp);
#ifdef CIPHER_DEBUG
printf("Have:\n");
for(i=0 ; i < sk_num(pref) ; ++i)
{
c=(SSL_CIPHER *)sk_value(pref,i);
printf("%p:%s\n",c,c->name);
}
#endif
for (i=0; i<sk_SSL_CIPHER_num(have); i++)
{
c=sk_SSL_CIPHER_value(have,i);
ssl_set_cert_masks(cert,c);
mask=cert->mask;
emask=cert->export_mask;
alg=c->algorithms&(SSL_MKEY_MASK|SSL_AUTH_MASK);
if (SSL_IS_EXPORT(c->algorithms))
{
ok=((alg & emask) == alg)?1:0;
#ifdef CIPHER_DEBUG
printf("%d:[%08lX:%08lX]%p:%s (export)\n",ok,alg,emask,
c,c->name);
#endif
}
else
{
ok=((alg & mask) == alg)?1:0;
#ifdef CIPHER_DEBUG
printf("%d:[%08lX:%08lX]%p:%s\n",ok,alg,mask,c,
c->name);
#endif
}
if (!ok) continue;
j=sk_SSL_CIPHER_find(pref,c);
if (j >= 0)
{
ret=sk_SSL_CIPHER_value(pref,j);
break;
}
}
return(ret);
}
int ssl3_get_req_cert_type(SSL *s, unsigned char *p)
{
int ret=0;
unsigned long alg;
alg=s->s3->tmp.new_cipher->algorithms;
#ifndef NO_DH
if (alg & (SSL_kDHr|SSL_kEDH))
{
# ifndef NO_RSA
p[ret++]=SSL3_CT_RSA_FIXED_DH;
# endif
# ifndef NO_DSA
p[ret++]=SSL3_CT_DSS_FIXED_DH;
# endif
}
if ((s->version == SSL3_VERSION) &&
(alg & (SSL_kEDH|SSL_kDHd|SSL_kDHr)))
{
# ifndef NO_RSA
p[ret++]=SSL3_CT_RSA_EPHEMERAL_DH;
# endif
# ifndef NO_DSA
p[ret++]=SSL3_CT_DSS_EPHEMERAL_DH;
# endif
}
#endif /* !NO_DH */
#ifndef NO_RSA
p[ret++]=SSL3_CT_RSA_SIGN;
#endif
#ifndef NO_DSA
p[ret++]=SSL3_CT_DSS_SIGN;
#endif
return(ret);
}
int ssl3_shutdown(SSL *s)
{
/* Don't do anything much if we have not done the handshake or
* we don't want to send messages :-) */
if ((s->quiet_shutdown) || (s->state == SSL_ST_BEFORE))
{
s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
return(1);
}
if (!(s->shutdown & SSL_SENT_SHUTDOWN))
{
s->shutdown|=SSL_SENT_SHUTDOWN;
#if 1
ssl3_send_alert(s,SSL3_AL_WARNING,SSL_AD_CLOSE_NOTIFY);
#endif
/* our shutdown alert has been sent now, and if it still needs
* to be written, s->s3->alert_dispatch will be true */
}
else if (s->s3->alert_dispatch)
{
/* resend it if not sent */
#if 1
ssl3_dispatch_alert(s);
#endif
}
else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN))
{
/* If we are waiting for a close from our peer, we are closed */
ssl3_read_bytes(s,0,NULL,0);
}
if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) &&
!s->s3->alert_dispatch)
return(1);
else
return(0);
}
int ssl3_write(SSL *s, const void *buf, int len)
{
int ret,n;
#if 0
if (s->shutdown & SSL_SEND_SHUTDOWN)
{
s->rwstate=SSL_NOTHING;
return(0);
}
#endif
clear_sys_error();
if (s->s3->renegotiate) ssl3_renegotiate_check(s);
/* This is an experimental flag that sends the
* last handshake message in the same packet as the first
* use data - used to see if it helps the TCP protocol during
* session-id reuse */
/* The second test is because the buffer may have been removed */
if ((s->s3->flags & SSL3_FLAGS_POP_BUFFER) && (s->wbio == s->bbio))
{
/* First time through, we write into the buffer */
if (s->s3->delay_buf_pop_ret == 0)
{
ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
buf,len);
if (ret <= 0) return(ret);
s->s3->delay_buf_pop_ret=ret;
}
s->rwstate=SSL_WRITING;
n=BIO_flush(s->wbio);
if (n <= 0) return(n);
s->rwstate=SSL_NOTHING;
/* We have flushed the buffer, so remove it */
ssl_free_wbio_buffer(s);
s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
ret=s->s3->delay_buf_pop_ret;
s->s3->delay_buf_pop_ret=0;
}
else
{
ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
buf,len);
if (ret <= 0) return(ret);
}
return(ret);
}
int ssl3_read(SSL *s, void *buf, int len)
{
int ret;
clear_sys_error();
if (s->s3->renegotiate) ssl3_renegotiate_check(s);
s->s3->in_read_app_data=1;
ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
if ((ret == -1) && (s->s3->in_read_app_data == 0))
{
ERR_get_error(); /* clear the error */
s->s3->in_read_app_data=0;
s->in_handshake++;
ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
s->in_handshake--;
}
else
s->s3->in_read_app_data=0;
return(ret);
}
int ssl3_peek(SSL *s, char *buf, int len)
{
SSL3_RECORD *rr;
int n;
rr= &(s->s3->rrec);
if ((rr->length == 0) || (rr->type != SSL3_RT_APPLICATION_DATA))
{
n=ssl3_read(s,buf,1);
if (n <= 0) return(n);
rr->length++;
rr->off--;
}
if ((unsigned int)len > rr->length)
n=rr->length;
else
n=len;
memcpy(buf,&(rr->data[rr->off]),(unsigned int)n);
return(n);
}
int ssl3_renegotiate(SSL *s)
{
if (s->handshake_func == NULL)
return(1);
if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)
return(0);
s->s3->renegotiate=1;
return(1);
}
int ssl3_renegotiate_check(SSL *s)
{
int ret=0;
if (s->s3->renegotiate)
{
if ( (s->s3->rbuf.left == 0) &&
(s->s3->wbuf.left == 0) &&
!SSL_in_init(s))
{
/*
if we are the server, and we have sent a 'RENEGOTIATE' message, we
need to go to SSL_ST_ACCEPT.
*/
/* SSL_ST_ACCEPT */
s->state=SSL_ST_RENEGOTIATE;
s->s3->renegotiate=0;
s->s3->num_renegotiations++;
s->s3->total_renegotiations++;
ret=1;
}
}
return(ret);
}
Reference in New Issue View Git Blame Copy Permalink