1998-12-21 10:52:47 +00:00
|
|
|
/* ssl/s23_clnt.c */
|
1998-12-21 10:56:39 +00:00
|
|
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
1998-12-21 10:52:47 +00:00
|
|
|
* 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>
|
2002-07-10 06:57:54 +00:00
|
|
|
#include "ssl_locl.h"
|
1999-04-23 22:13:45 +00:00
|
|
|
#include <openssl/buffer.h>
|
|
|
|
#include <openssl/rand.h>
|
|
|
|
#include <openssl/objects.h>
|
|
|
|
#include <openssl/evp.h>
|
1998-12-21 10:52:47 +00:00
|
|
|
|
1999-01-31 17:30:18 +00:00
|
|
|
static SSL_METHOD *ssl23_get_client_method(int ver);
|
1998-12-21 10:52:47 +00:00
|
|
|
static int ssl23_client_hello(SSL *s);
|
|
|
|
static int ssl23_get_server_hello(SSL *s);
|
1999-04-19 21:31:43 +00:00
|
|
|
static SSL_METHOD *ssl23_get_client_method(int ver)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
2001-02-20 08:13:47 +00:00
|
|
|
#ifndef OPENSSL_NO_SSL2
|
1998-12-21 10:56:39 +00:00
|
|
|
if (ver == SSL2_VERSION)
|
1998-12-21 10:52:47 +00:00
|
|
|
return(SSLv2_client_method());
|
2000-01-16 21:10:00 +00:00
|
|
|
#endif
|
1999-04-27 03:19:12 +00:00
|
|
|
if (ver == SSL3_VERSION)
|
1998-12-21 10:52:47 +00:00
|
|
|
return(SSLv3_client_method());
|
1998-12-21 10:56:39 +00:00
|
|
|
else if (ver == TLS1_VERSION)
|
|
|
|
return(TLSv1_client_method());
|
1998-12-21 10:52:47 +00:00
|
|
|
else
|
|
|
|
return(NULL);
|
|
|
|
}
|
|
|
|
|
1999-04-19 21:31:43 +00:00
|
|
|
SSL_METHOD *SSLv23_client_method(void)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
|
|
|
static int init=1;
|
|
|
|
static SSL_METHOD SSLv23_client_data;
|
|
|
|
|
|
|
|
if (init)
|
|
|
|
{
|
2002-09-23 14:28:12 +00:00
|
|
|
CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
|
|
|
|
|
2002-09-25 15:38:17 +00:00
|
|
|
if (init)
|
|
|
|
{
|
|
|
|
memcpy((char *)&SSLv23_client_data,
|
|
|
|
(char *)sslv23_base_method(),sizeof(SSL_METHOD));
|
|
|
|
SSLv23_client_data.ssl_connect=ssl23_connect;
|
|
|
|
SSLv23_client_data.get_ssl_method=ssl23_get_client_method;
|
|
|
|
init=0;
|
|
|
|
}
|
2002-09-23 14:28:12 +00:00
|
|
|
|
|
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
|
|
|
return(&SSLv23_client_data);
|
|
|
|
}
|
|
|
|
|
1999-04-19 21:31:43 +00:00
|
|
|
int ssl23_connect(SSL *s)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
|
|
|
BUF_MEM *buf;
|
|
|
|
unsigned long Time=time(NULL);
|
2002-01-12 15:56:13 +00:00
|
|
|
void (*cb)(const SSL *ssl,int type,int val)=NULL;
|
1998-12-21 10:52:47 +00:00
|
|
|
int ret= -1;
|
|
|
|
int new_state,state;
|
|
|
|
|
2000-01-13 20:59:17 +00:00
|
|
|
RAND_add(&Time,sizeof(Time),0);
|
1998-12-21 10:52:47 +00:00
|
|
|
ERR_clear_error();
|
1998-12-21 10:56:39 +00:00
|
|
|
clear_sys_error();
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
if (s->info_callback != NULL)
|
|
|
|
cb=s->info_callback;
|
|
|
|
else if (s->ctx->info_callback != NULL)
|
|
|
|
cb=s->ctx->info_callback;
|
|
|
|
|
|
|
|
s->in_handshake++;
|
2001-10-24 19:03:22 +00:00
|
|
|
if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
for (;;)
|
|
|
|
{
|
|
|
|
state=s->state;
|
|
|
|
|
|
|
|
switch(s->state)
|
|
|
|
{
|
|
|
|
case SSL_ST_BEFORE:
|
|
|
|
case SSL_ST_CONNECT:
|
|
|
|
case SSL_ST_BEFORE|SSL_ST_CONNECT:
|
|
|
|
case SSL_ST_OK|SSL_ST_CONNECT:
|
|
|
|
|
Updates to the new SSL compression code
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Fix so that the version number in the master secret, when passed
via RSA, checks that if TLS was proposed, but we roll back to SSLv3
(because the server will not accept higher), that the version number
is 0x03,0x01, not 0x03,0x00
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Submitted by:
Reviewed by:
PR:
1999-02-16 09:22:21 +00:00
|
|
|
if (s->session != NULL)
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE);
|
|
|
|
ret= -1;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
s->server=0;
|
1998-12-21 10:52:47 +00:00
|
|
|
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
|
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
/* s->version=TLS1_VERSION; */
|
1998-12-21 10:52:47 +00:00
|
|
|
s->type=SSL_ST_CONNECT;
|
|
|
|
|
|
|
|
if (s->init_buf == NULL)
|
|
|
|
{
|
|
|
|
if ((buf=BUF_MEM_new()) == NULL)
|
|
|
|
{
|
|
|
|
ret= -1;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
|
|
|
|
{
|
|
|
|
ret= -1;
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
s->init_buf=buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
|
|
|
|
|
|
|
|
ssl3_init_finished_mac(s);
|
|
|
|
|
|
|
|
s->state=SSL23_ST_CW_CLNT_HELLO_A;
|
Updates to the new SSL compression code
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Fix so that the version number in the master secret, when passed
via RSA, checks that if TLS was proposed, but we roll back to SSLv3
(because the server will not accept higher), that the version number
is 0x03,0x01, not 0x03,0x00
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Submitted by:
Reviewed by:
PR:
1999-02-16 09:22:21 +00:00
|
|
|
s->ctx->stats.sess_connect++;
|
1998-12-21 10:52:47 +00:00
|
|
|
s->init_num=0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SSL23_ST_CW_CLNT_HELLO_A:
|
|
|
|
case SSL23_ST_CW_CLNT_HELLO_B:
|
|
|
|
|
|
|
|
s->shutdown=0;
|
|
|
|
ret=ssl23_client_hello(s);
|
|
|
|
if (ret <= 0) goto end;
|
|
|
|
s->state=SSL23_ST_CR_SRVR_HELLO_A;
|
|
|
|
s->init_num=0;
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SSL23_ST_CR_SRVR_HELLO_A:
|
|
|
|
case SSL23_ST_CR_SRVR_HELLO_B:
|
|
|
|
ret=ssl23_get_server_hello(s);
|
|
|
|
if (ret >= 0) cb=NULL;
|
|
|
|
goto end;
|
1998-12-21 11:00:56 +00:00
|
|
|
/* break; */
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
default:
|
|
|
|
SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE);
|
|
|
|
ret= -1;
|
|
|
|
goto end;
|
|
|
|
/* break; */
|
|
|
|
}
|
|
|
|
|
1999-06-10 16:29:32 +00:00
|
|
|
if (s->debug) { (void)BIO_flush(s->wbio); }
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
if ((cb != NULL) && (s->state != state))
|
|
|
|
{
|
|
|
|
new_state=s->state;
|
|
|
|
s->state=state;
|
|
|
|
cb(s,SSL_CB_CONNECT_LOOP,1);
|
|
|
|
s->state=new_state;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
end:
|
|
|
|
s->in_handshake--;
|
|
|
|
if (cb != NULL)
|
|
|
|
cb(s,SSL_CB_CONNECT_EXIT,ret);
|
|
|
|
return(ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
1999-04-19 21:31:43 +00:00
|
|
|
static int ssl23_client_hello(SSL *s)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
|
|
|
unsigned char *buf;
|
|
|
|
unsigned char *p,*d;
|
|
|
|
int i,ch_len;
|
2001-11-10 01:16:28 +00:00
|
|
|
int ret;
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
buf=(unsigned char *)s->init_buf->data;
|
|
|
|
if (s->state == SSL23_ST_CW_CLNT_HELLO_A)
|
|
|
|
{
|
|
|
|
#if 0
|
|
|
|
/* don't reuse session-id's */
|
|
|
|
if (!ssl_get_new_session(s,0))
|
|
|
|
{
|
|
|
|
return(-1);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
p=s->s3->client_random;
|
2000-01-21 01:15:56 +00:00
|
|
|
RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE);
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
/* Do the message type and length last */
|
|
|
|
d= &(buf[2]);
|
|
|
|
p=d+9;
|
|
|
|
|
|
|
|
*(d++)=SSL2_MT_CLIENT_HELLO;
|
1998-12-21 10:56:39 +00:00
|
|
|
if (!(s->options & SSL_OP_NO_TLSv1))
|
|
|
|
{
|
|
|
|
*(d++)=TLS1_VERSION_MAJOR;
|
|
|
|
*(d++)=TLS1_VERSION_MINOR;
|
Updates to the new SSL compression code
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Fix so that the version number in the master secret, when passed
via RSA, checks that if TLS was proposed, but we roll back to SSLv3
(because the server will not accept higher), that the version number
is 0x03,0x01, not 0x03,0x00
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Submitted by:
Reviewed by:
PR:
1999-02-16 09:22:21 +00:00
|
|
|
s->client_version=TLS1_VERSION;
|
1998-12-21 10:56:39 +00:00
|
|
|
}
|
|
|
|
else if (!(s->options & SSL_OP_NO_SSLv3))
|
|
|
|
{
|
|
|
|
*(d++)=SSL3_VERSION_MAJOR;
|
|
|
|
*(d++)=SSL3_VERSION_MINOR;
|
Updates to the new SSL compression code
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Fix so that the version number in the master secret, when passed
via RSA, checks that if TLS was proposed, but we roll back to SSLv3
(because the server will not accept higher), that the version number
is 0x03,0x01, not 0x03,0x00
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Submitted by:
Reviewed by:
PR:
1999-02-16 09:22:21 +00:00
|
|
|
s->client_version=SSL3_VERSION;
|
1998-12-21 10:56:39 +00:00
|
|
|
}
|
|
|
|
else if (!(s->options & SSL_OP_NO_SSLv2))
|
|
|
|
{
|
|
|
|
*(d++)=SSL2_VERSION_MAJOR;
|
|
|
|
*(d++)=SSL2_VERSION_MINOR;
|
Updates to the new SSL compression code
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Fix so that the version number in the master secret, when passed
via RSA, checks that if TLS was proposed, but we roll back to SSLv3
(because the server will not accept higher), that the version number
is 0x03,0x01, not 0x03,0x00
[Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
Submitted by:
Reviewed by:
PR:
1999-02-16 09:22:21 +00:00
|
|
|
s->client_version=SSL2_VERSION;
|
1998-12-21 10:56:39 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE);
|
|
|
|
return(-1);
|
|
|
|
}
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
/* Ciphers supported */
|
|
|
|
i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p);
|
|
|
|
if (i == 0)
|
|
|
|
{
|
|
|
|
/* no ciphers */
|
|
|
|
SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
|
|
|
|
return(-1);
|
|
|
|
}
|
|
|
|
s2n(i,d);
|
|
|
|
p+=i;
|
|
|
|
|
|
|
|
/* put in the session-id, zero since there is no
|
|
|
|
* reuse. */
|
|
|
|
#if 0
|
|
|
|
s->session->session_id_length=0;
|
|
|
|
#endif
|
|
|
|
s2n(0,d);
|
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
|
1998-12-21 10:52:47 +00:00
|
|
|
ch_len=SSL2_CHALLENGE_LENGTH;
|
|
|
|
else
|
|
|
|
ch_len=SSL2_MAX_CHALLENGE_LENGTH;
|
|
|
|
|
|
|
|
/* write out sslv2 challenge */
|
|
|
|
if (SSL3_RANDOM_SIZE < ch_len)
|
|
|
|
i=SSL3_RANDOM_SIZE;
|
|
|
|
else
|
|
|
|
i=ch_len;
|
|
|
|
s2n(i,d);
|
|
|
|
memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE);
|
2000-01-21 01:15:56 +00:00
|
|
|
RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
|
1998-12-21 10:52:47 +00:00
|
|
|
memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
|
|
|
|
p+=i;
|
|
|
|
|
|
|
|
i= p- &(buf[2]);
|
|
|
|
buf[0]=((i>>8)&0xff)|0x80;
|
|
|
|
buf[1]=(i&0xff);
|
|
|
|
|
|
|
|
s->state=SSL23_ST_CW_CLNT_HELLO_B;
|
|
|
|
/* number of bytes to write */
|
|
|
|
s->init_num=i+2;
|
|
|
|
s->init_off=0;
|
|
|
|
|
|
|
|
ssl3_finish_mac(s,&(buf[2]),i);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* SSL3_ST_CW_CLNT_HELLO_B */
|
2001-11-10 01:16:28 +00:00
|
|
|
ret = ssl23_write_bytes(s);
|
|
|
|
if (ret >= 2)
|
|
|
|
if (s->msg_callback)
|
|
|
|
s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg); /* CLIENT-HELLO */
|
|
|
|
return ret;
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
|
|
|
|
1999-04-19 21:31:43 +00:00
|
|
|
static int ssl23_get_server_hello(SSL *s)
|
1998-12-21 10:52:47 +00:00
|
|
|
{
|
|
|
|
char buf[8];
|
|
|
|
unsigned char *p;
|
2000-01-16 21:10:00 +00:00
|
|
|
int i;
|
1998-12-21 10:52:47 +00:00
|
|
|
int n;
|
|
|
|
|
|
|
|
n=ssl23_read_bytes(s,7);
|
|
|
|
|
|
|
|
if (n != 7) return(n);
|
|
|
|
p=s->packet;
|
|
|
|
|
|
|
|
memcpy(buf,p,n);
|
|
|
|
|
|
|
|
if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
|
|
|
|
(p[5] == 0x00) && (p[6] == 0x02))
|
|
|
|
{
|
2001-02-20 08:13:47 +00:00
|
|
|
#ifdef OPENSSL_NO_SSL2
|
2000-01-16 21:10:00 +00:00
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
|
|
|
|
goto err;
|
|
|
|
#else
|
1998-12-21 10:52:47 +00:00
|
|
|
/* we are talking sslv2 */
|
|
|
|
/* we need to clean up the SSLv3 setup and put in the
|
|
|
|
* sslv2 stuff. */
|
2000-01-16 21:10:00 +00:00
|
|
|
int ch_len;
|
1998-12-21 10:52:47 +00:00
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
if (s->options & SSL_OP_NO_SSLv2)
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
|
|
|
|
goto err;
|
|
|
|
}
|
1998-12-21 10:52:47 +00:00
|
|
|
if (s->s2 == NULL)
|
|
|
|
{
|
|
|
|
if (!ssl2_new(s))
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
ssl2_clear(s);
|
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
|
1998-12-21 10:52:47 +00:00
|
|
|
ch_len=SSL2_CHALLENGE_LENGTH;
|
|
|
|
else
|
|
|
|
ch_len=SSL2_MAX_CHALLENGE_LENGTH;
|
|
|
|
|
|
|
|
/* write out sslv2 challenge */
|
|
|
|
i=(SSL3_RANDOM_SIZE < ch_len)
|
|
|
|
?SSL3_RANDOM_SIZE:ch_len;
|
|
|
|
s->s2->challenge_length=i;
|
|
|
|
memcpy(s->s2->challenge,
|
|
|
|
&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
|
|
|
|
|
|
|
|
if (s->s3 != NULL) ssl3_free(s);
|
|
|
|
|
2002-11-12 13:23:40 +00:00
|
|
|
if (!BUF_MEM_grow_clean(s->init_buf,
|
1998-12-21 10:52:47 +00:00
|
|
|
SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
s->state=SSL2_ST_GET_SERVER_HELLO_A;
|
2000-07-29 18:50:41 +00:00
|
|
|
if (!(s->client_version == SSL2_VERSION))
|
2000-07-29 19:27:20 +00:00
|
|
|
/* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */
|
2000-07-29 18:50:41 +00:00
|
|
|
s->s2->ssl2_rollback=1;
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
/* setup the 5 bytes we have read so we get them from
|
|
|
|
* the sslv2 buffer */
|
|
|
|
s->rstate=SSL_ST_READ_HEADER;
|
|
|
|
s->packet_length=n;
|
|
|
|
s->packet= &(s->s2->rbuf[0]);
|
|
|
|
memcpy(s->packet,buf,n);
|
|
|
|
s->s2->rbuf_left=n;
|
|
|
|
s->s2->rbuf_offs=0;
|
|
|
|
|
|
|
|
/* we have already written one */
|
|
|
|
s->s2->write_sequence=1;
|
|
|
|
|
|
|
|
s->method=SSLv2_client_method();
|
|
|
|
s->handshake_func=s->method->ssl_connect;
|
2000-01-16 21:10:00 +00:00
|
|
|
#endif
|
1998-12-21 10:52:47 +00:00
|
|
|
}
|
|
|
|
else if ((p[0] == SSL3_RT_HANDSHAKE) &&
|
|
|
|
(p[1] == SSL3_VERSION_MAJOR) &&
|
1998-12-21 10:56:39 +00:00
|
|
|
((p[2] == SSL3_VERSION_MINOR) ||
|
|
|
|
(p[2] == TLS1_VERSION_MINOR)) &&
|
1998-12-21 10:52:47 +00:00
|
|
|
(p[5] == SSL3_MT_SERVER_HELLO))
|
|
|
|
{
|
1998-12-21 10:56:39 +00:00
|
|
|
/* we have sslv3 or tls1 */
|
1998-12-21 10:52:47 +00:00
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
if (!ssl_init_wbio_buffer(s,1)) goto err;
|
1998-12-21 10:52:47 +00:00
|
|
|
|
|
|
|
/* we are in this state */
|
|
|
|
s->state=SSL3_ST_CR_SRVR_HELLO_A;
|
|
|
|
|
|
|
|
/* put the 5 bytes we have read into the input buffer
|
|
|
|
* for SSLv3 */
|
|
|
|
s->rstate=SSL_ST_READ_HEADER;
|
|
|
|
s->packet_length=n;
|
|
|
|
s->packet= &(s->s3->rbuf.buf[0]);
|
|
|
|
memcpy(s->packet,buf,n);
|
|
|
|
s->s3->rbuf.left=n;
|
|
|
|
s->s3->rbuf.offset=0;
|
|
|
|
|
1998-12-21 10:56:39 +00:00
|
|
|
if ((p[2] == SSL3_VERSION_MINOR) &&
|
|
|
|
!(s->options & SSL_OP_NO_SSLv3))
|
|
|
|
{
|
|
|
|
s->version=SSL3_VERSION;
|
|
|
|
s->method=SSLv3_client_method();
|
|
|
|
}
|
|
|
|
else if ((p[2] == TLS1_VERSION_MINOR) &&
|
|
|
|
!(s->options & SSL_OP_NO_TLSv1))
|
|
|
|
{
|
|
|
|
s->version=TLS1_VERSION;
|
|
|
|
s->method=TLSv1_client_method();
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
1998-12-21 10:52:47 +00:00
|
|
|
s->handshake_func=s->method->ssl_connect;
|
|
|
|
}
|
|
|
|
else if ((p[0] == SSL3_RT_ALERT) &&
|
|
|
|
(p[1] == SSL3_VERSION_MAJOR) &&
|
1998-12-21 10:56:39 +00:00
|
|
|
((p[2] == SSL3_VERSION_MINOR) ||
|
|
|
|
(p[2] == TLS1_VERSION_MINOR)) &&
|
1998-12-21 10:52:47 +00:00
|
|
|
(p[3] == 0) &&
|
|
|
|
(p[4] == 2))
|
|
|
|
{
|
2002-01-12 15:56:13 +00:00
|
|
|
void (*cb)(const SSL *ssl,int type,int val)=NULL;
|
1998-12-21 10:52:47 +00:00
|
|
|
int j;
|
|
|
|
|
|
|
|
/* An alert */
|
|
|
|
if (s->info_callback != NULL)
|
|
|
|
cb=s->info_callback;
|
|
|
|
else if (s->ctx->info_callback != NULL)
|
|
|
|
cb=s->ctx->info_callback;
|
|
|
|
|
|
|
|
i=p[5];
|
|
|
|
if (cb != NULL)
|
|
|
|
{
|
|
|
|
j=(i<<8)|p[6];
|
|
|
|
cb(s,SSL_CB_READ_ALERT,j);
|
|
|
|
}
|
|
|
|
|
|
|
|
s->rwstate=SSL_NOTHING;
|
1998-12-21 11:00:56 +00:00
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
|
1998-12-21 10:52:47 +00:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL);
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
s->init_num=0;
|
|
|
|
|
|
|
|
/* Since, if we are sending a ssl23 client hello, we are not
|
|
|
|
* reusing a session-id */
|
|
|
|
if (!ssl_get_new_session(s,0))
|
|
|
|
goto err;
|
|
|
|
|
|
|
|
s->first_packet=1;
|
|
|
|
return(SSL_connect(s));
|
|
|
|
err:
|
|
|
|
return(-1);
|
|
|
|
}
|
|
|
|
|