sl@0: /* ssl/s23_clnt.c */
sl@0: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
sl@0:  * All rights reserved.
sl@0:  *
sl@0:  * This package is an SSL implementation written
sl@0:  * by Eric Young (eay@cryptsoft.com).
sl@0:  * The implementation was written so as to conform with Netscapes SSL.
sl@0:  * 
sl@0:  * This library is free for commercial and non-commercial use as long as
sl@0:  * the following conditions are aheared to.  The following conditions
sl@0:  * apply to all code found in this distribution, be it the RC4, RSA,
sl@0:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
sl@0:  * included with this distribution is covered by the same copyright terms
sl@0:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
sl@0:  * 
sl@0:  * Copyright remains Eric Young's, and as such any Copyright notices in
sl@0:  * the code are not to be removed.
sl@0:  * If this package is used in a product, Eric Young should be given attribution
sl@0:  * as the author of the parts of the library used.
sl@0:  * This can be in the form of a textual message at program startup or
sl@0:  * in documentation (online or textual) provided with the package.
sl@0:  * 
sl@0:  * Redistribution and use in source and binary forms, with or without
sl@0:  * modification, are permitted provided that the following conditions
sl@0:  * are met:
sl@0:  * 1. Redistributions of source code must retain the copyright
sl@0:  *    notice, this list of conditions and the following disclaimer.
sl@0:  * 2. Redistributions in binary form must reproduce the above copyright
sl@0:  *    notice, this list of conditions and the following disclaimer in the
sl@0:  *    documentation and/or other materials provided with the distribution.
sl@0:  * 3. All advertising materials mentioning features or use of this software
sl@0:  *    must display the following acknowledgement:
sl@0:  *    "This product includes cryptographic software written by
sl@0:  *     Eric Young (eay@cryptsoft.com)"
sl@0:  *    The word 'cryptographic' can be left out if the rouines from the library
sl@0:  *    being used are not cryptographic related :-).
sl@0:  * 4. If you include any Windows specific code (or a derivative thereof) from 
sl@0:  *    the apps directory (application code) you must include an acknowledgement:
sl@0:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
sl@0:  * 
sl@0:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
sl@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
sl@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
sl@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
sl@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
sl@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
sl@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
sl@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
sl@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
sl@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
sl@0:  * SUCH DAMAGE.
sl@0:  * 
sl@0:  * The licence and distribution terms for any publically available version or
sl@0:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
sl@0:  * copied and put under another distribution licence
sl@0:  * [including the GNU Public Licence.]
sl@0:  */
sl@0: /*
sl@0:  © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
sl@0:  */
sl@0:  
sl@0: #include <stdio.h>
sl@0: #include "ssl_locl.h"
sl@0: #include <openssl/buffer.h>
sl@0: #include <openssl/rand.h>
sl@0: #include <openssl/objects.h>
sl@0: #include <openssl/evp.h>
sl@0: 
sl@0: #if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
sl@0: #include "libssl_wsd.h"
sl@0: #endif
sl@0: 
sl@0: #ifdef EMULATOR
sl@0: 
sl@0: 	GET_STATIC_VAR_FROM_TLS(SSLv23_client_method_data,s23_clnt,SSL_METHOD)
sl@0: 	
sl@0: 	#define SSLv23_client_method_data (*GET_WSD_VAR_NAME(SSLv23_client_method_data,s23_clnt,s)())
sl@0: 	
sl@0: #endif 
sl@0: static SSL_METHOD *ssl23_get_client_method(int ver);
sl@0: static int ssl23_client_hello(SSL *s);
sl@0: static int ssl23_get_server_hello(SSL *s);
sl@0: static SSL_METHOD *ssl23_get_client_method(int ver)
sl@0: 	{
sl@0: #ifndef OPENSSL_NO_SSL2
sl@0: 	if (ver == SSL2_VERSION)
sl@0: 		return(SSLv2_client_method());
sl@0: #endif
sl@0: 	if (ver == SSL3_VERSION)
sl@0: 		return(SSLv3_client_method());
sl@0: 	else if (ver == TLS1_VERSION)
sl@0: 		return(TLSv1_client_method());
sl@0: 	else
sl@0: 		return(NULL);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C IMPLEMENT_ssl23_meth_func(SSLv23_client_method,
sl@0: 			ssl_undefined_function,
sl@0: 			ssl23_connect,
sl@0: 			ssl23_get_client_method)
sl@0: 
sl@0: int ssl23_connect(SSL *s)
sl@0: 	{
sl@0: 	BUF_MEM *buf=NULL;
sl@0: 	unsigned long Time=(unsigned long)time(NULL);
sl@0: 	void (*cb)(const SSL *ssl,int type,int val)=NULL;
sl@0: 	int ret= -1;
sl@0: 	int new_state,state;
sl@0: 
sl@0: 	RAND_add(&Time,sizeof(Time),0);
sl@0: 	ERR_clear_error();
sl@0: 	clear_sys_error();
sl@0: 
sl@0: 	if (s->info_callback != NULL)
sl@0: 		cb=s->info_callback;
sl@0: 	else if (s->ctx->info_callback != NULL)
sl@0: 		cb=s->ctx->info_callback;
sl@0: 	
sl@0: 	s->in_handshake++;
sl@0: 	if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 
sl@0: 
sl@0: 	for (;;)
sl@0: 		{
sl@0: 		state=s->state;
sl@0: 
sl@0: 		switch(s->state)
sl@0: 			{
sl@0: 		case SSL_ST_BEFORE:
sl@0: 		case SSL_ST_CONNECT:
sl@0: 		case SSL_ST_BEFORE|SSL_ST_CONNECT:
sl@0: 		case SSL_ST_OK|SSL_ST_CONNECT:
sl@0: 
sl@0: 			if (s->session != NULL)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE);
sl@0: 				ret= -1;
sl@0: 				goto end;
sl@0: 				}
sl@0: 			s->server=0;
sl@0: 			if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
sl@0: 
sl@0: 			/* s->version=TLS1_VERSION; */
sl@0: 			s->type=SSL_ST_CONNECT;
sl@0: 
sl@0: 			if (s->init_buf == NULL)
sl@0: 				{
sl@0: 				if ((buf=BUF_MEM_new()) == NULL)
sl@0: 					{
sl@0: 					ret= -1;
sl@0: 					goto end;
sl@0: 					}
sl@0: 				if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
sl@0: 					{
sl@0: 					ret= -1;
sl@0: 					goto end;
sl@0: 					}
sl@0: 				s->init_buf=buf;
sl@0: 				buf=NULL;
sl@0: 				}
sl@0: 
sl@0: 			if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
sl@0: 
sl@0: 			ssl3_init_finished_mac(s);
sl@0: 
sl@0: 			s->state=SSL23_ST_CW_CLNT_HELLO_A;
sl@0: 			s->ctx->stats.sess_connect++;
sl@0: 			s->init_num=0;
sl@0: 			break;
sl@0: 
sl@0: 		case SSL23_ST_CW_CLNT_HELLO_A:
sl@0: 		case SSL23_ST_CW_CLNT_HELLO_B:
sl@0: 
sl@0: 			s->shutdown=0;
sl@0: 			ret=ssl23_client_hello(s);
sl@0: 			if (ret <= 0) goto end;
sl@0: 			s->state=SSL23_ST_CR_SRVR_HELLO_A;
sl@0: 			s->init_num=0;
sl@0: 
sl@0: 			break;
sl@0: 
sl@0: 		case SSL23_ST_CR_SRVR_HELLO_A:
sl@0: 		case SSL23_ST_CR_SRVR_HELLO_B:
sl@0: 			ret=ssl23_get_server_hello(s);
sl@0: 			if (ret >= 0) cb=NULL;
sl@0: 			goto end;
sl@0: 			/* break; */
sl@0: 
sl@0: 		default:
sl@0: 			SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE);
sl@0: 			ret= -1;
sl@0: 			goto end;
sl@0: 			/* break; */
sl@0: 			}
sl@0: 
sl@0: 		if (s->debug) { (void)BIO_flush(s->wbio); }
sl@0: 
sl@0: 		if ((cb != NULL) && (s->state != state))
sl@0: 			{
sl@0: 			new_state=s->state;
sl@0: 			s->state=state;
sl@0: 			cb(s,SSL_CB_CONNECT_LOOP,1);
sl@0: 			s->state=new_state;
sl@0: 			}
sl@0: 		}
sl@0: end:
sl@0: 	s->in_handshake--;
sl@0: 	if (buf != NULL)
sl@0: 		BUF_MEM_free(buf);
sl@0: 	if (cb != NULL)
sl@0: 		cb(s,SSL_CB_CONNECT_EXIT,ret);
sl@0: 	return(ret);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: static int ssl23_client_hello(SSL *s)
sl@0: 	{
sl@0: 	unsigned char *buf;
sl@0: 	unsigned char *p,*d;
sl@0: 	int i,j,ch_len;
sl@0: 	unsigned long Time,l;
sl@0: 	int ssl2_compat;
sl@0: 	int version = 0, version_major, version_minor;
sl@0: 	SSL_COMP *comp;
sl@0: 	int ret;
sl@0: 
sl@0: 	ssl2_compat = (s->options & SSL_OP_NO_SSLv2) ? 0 : 1;
sl@0: 
sl@0: 	if (!(s->options & SSL_OP_NO_TLSv1))
sl@0: 		{
sl@0: 		version = TLS1_VERSION;
sl@0: 		}
sl@0: 	else if (!(s->options & SSL_OP_NO_SSLv3))
sl@0: 		{
sl@0: 		version = SSL3_VERSION;
sl@0: 		}
sl@0: 	else if (!(s->options & SSL_OP_NO_SSLv2))
sl@0: 		{
sl@0: 		version = SSL2_VERSION;
sl@0: 		}
sl@0: 
sl@0: 	buf=(unsigned char *)s->init_buf->data;
sl@0: 	if (s->state == SSL23_ST_CW_CLNT_HELLO_A)
sl@0: 		{
sl@0: #if 0
sl@0: 		/* don't reuse session-id's */
sl@0: 		if (!ssl_get_new_session(s,0))
sl@0: 			{
sl@0: 			return(-1);
sl@0: 			}
sl@0: #endif
sl@0: 
sl@0: 		p=s->s3->client_random;
sl@0: 		Time=(unsigned long)time(NULL);			/* Time */
sl@0: 		l2n(Time,p);
sl@0: 		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
sl@0: 			return -1;
sl@0: 
sl@0: 		if (version == TLS1_VERSION)
sl@0: 			{
sl@0: 			version_major = TLS1_VERSION_MAJOR;
sl@0: 			version_minor = TLS1_VERSION_MINOR;
sl@0: 			}
sl@0: 		else if (version == SSL3_VERSION)
sl@0: 			{
sl@0: 			version_major = SSL3_VERSION_MAJOR;
sl@0: 			version_minor = SSL3_VERSION_MINOR;
sl@0: 			}
sl@0: 		else if (version == SSL2_VERSION)
sl@0: 			{
sl@0: 			version_major = SSL2_VERSION_MAJOR;
sl@0: 			version_minor = SSL2_VERSION_MINOR;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE);
sl@0: 			return(-1);
sl@0: 			}
sl@0: 
sl@0: 		s->client_version = version;
sl@0: 
sl@0: 		if (ssl2_compat)
sl@0: 			{
sl@0: 			/* create SSL 2.0 compatible Client Hello */
sl@0: 
sl@0: 			/* two byte record header will be written last */
sl@0: 			d = &(buf[2]);
sl@0: 			p = d + 9; /* leave space for message type, version, individual length fields */
sl@0: 
sl@0: 			*(d++) = SSL2_MT_CLIENT_HELLO;
sl@0: 			*(d++) = version_major;
sl@0: 			*(d++) = version_minor;
sl@0: 			
sl@0: 			/* Ciphers supported */
sl@0: 			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0);
sl@0: 			if (i == 0)
sl@0: 				{
sl@0: 				/* no ciphers */
sl@0: 				SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
sl@0: 				return -1;
sl@0: 				}
sl@0: 			s2n(i,d);
sl@0: 			p+=i;
sl@0: 			
sl@0: 			/* put in the session-id length (zero since there is no reuse) */
sl@0: #if 0
sl@0: 			s->session->session_id_length=0;
sl@0: #endif
sl@0: 			s2n(0,d);
sl@0: 
sl@0: 			if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
sl@0: 				ch_len=SSL2_CHALLENGE_LENGTH;
sl@0: 			else
sl@0: 				ch_len=SSL2_MAX_CHALLENGE_LENGTH;
sl@0: 
sl@0: 			/* write out sslv2 challenge */
sl@0: 			if (SSL3_RANDOM_SIZE < ch_len)
sl@0: 				i=SSL3_RANDOM_SIZE;
sl@0: 			else
sl@0: 				i=ch_len;
sl@0: 			s2n(i,d);
sl@0: 			memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE);
sl@0: 			if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0)
sl@0: 				return -1;
sl@0: 
sl@0: 			memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
sl@0: 			p+=i;
sl@0: 
sl@0: 			i= p- &(buf[2]);
sl@0: 			buf[0]=((i>>8)&0xff)|0x80;
sl@0: 			buf[1]=(i&0xff);
sl@0: 
sl@0: 			/* number of bytes to write */
sl@0: 			s->init_num=i+2;
sl@0: 			s->init_off=0;
sl@0: 
sl@0: 			ssl3_finish_mac(s,&(buf[2]),i);
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			/* create Client Hello in SSL 3.0/TLS 1.0 format */
sl@0: 
sl@0: 			/* do the record header (5 bytes) and handshake message header (4 bytes) last */
sl@0: 			d = p = &(buf[9]);
sl@0: 			
sl@0: 			*(p++) = version_major;
sl@0: 			*(p++) = version_minor;
sl@0: 
sl@0: 			/* Random stuff */
sl@0: 			memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
sl@0: 			p += SSL3_RANDOM_SIZE;
sl@0: 
sl@0: 			/* Session ID (zero since there is no reuse) */
sl@0: 			*(p++) = 0;
sl@0: 
sl@0: 			/* Ciphers supported (using SSL 3.0/TLS 1.0 format) */
sl@0: 			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char);
sl@0: 			if (i == 0)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
sl@0: 				return -1;
sl@0: 				}
sl@0: 			s2n(i,p);
sl@0: 			p+=i;
sl@0: 
sl@0: 			/* COMPRESSION */
sl@0: 			if (s->ctx->comp_methods == NULL)
sl@0: 				j=0;
sl@0: 			else
sl@0: 				j=sk_SSL_COMP_num(s->ctx->comp_methods);
sl@0: 			*(p++)=1+j;
sl@0: 			for (i=0; i<j; i++)
sl@0: 				{
sl@0: 				comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
sl@0: 				*(p++)=comp->id;
sl@0: 				}
sl@0: 			*(p++)=0; /* Add the NULL method */
sl@0: 			
sl@0: 			l = p-d;
sl@0: 			*p = 42;
sl@0: 
sl@0: 			/* fill in 4-byte handshake header */
sl@0: 			d=&(buf[5]);
sl@0: 			*(d++)=SSL3_MT_CLIENT_HELLO;
sl@0: 			l2n3(l,d);
sl@0: 
sl@0: 			l += 4;
sl@0: 
sl@0: 			if (l > SSL3_RT_MAX_PLAIN_LENGTH)
sl@0: 				{
sl@0: 				SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
sl@0: 				return -1;
sl@0: 				}
sl@0: 			
sl@0: 			/* fill in 5-byte record header */
sl@0: 			d=buf;
sl@0: 			*(d++) = SSL3_RT_HANDSHAKE;
sl@0: 			*(d++) = version_major;
sl@0: 			*(d++) = version_minor; /* arguably we should send the *lowest* suported version here
sl@0: 			                         * (indicating, e.g., TLS 1.0 in "SSL 3.0 format") */
sl@0: 			s2n((int)l,d);
sl@0: 
sl@0: 			/* number of bytes to write */
sl@0: 			s->init_num=p-buf;
sl@0: 			s->init_off=0;
sl@0: 
sl@0: 			ssl3_finish_mac(s,&(buf[5]), s->init_num - 5);
sl@0: 			}
sl@0: 
sl@0: 		s->state=SSL23_ST_CW_CLNT_HELLO_B;
sl@0: 		s->init_off=0;
sl@0: 		}
sl@0: 
sl@0: 	/* SSL3_ST_CW_CLNT_HELLO_B */
sl@0: 	ret = ssl23_write_bytes(s);
sl@0: 
sl@0: 	if ((ret >= 2) && s->msg_callback)
sl@0: 		{
sl@0: 		/* Client Hello has been sent; tell msg_callback */
sl@0: 
sl@0: 		if (ssl2_compat)
sl@0: 			s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg);
sl@0: 		else
sl@0: 			s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg);
sl@0: 		}
sl@0: 
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: static int ssl23_get_server_hello(SSL *s)
sl@0: 	{
sl@0: 	char buf[8];
sl@0: 	unsigned char *p;
sl@0: 	int i;
sl@0: 	int n;
sl@0: 
sl@0: 	n=ssl23_read_bytes(s,7);
sl@0: 
sl@0: 	if (n != 7) return(n);
sl@0: 	p=s->packet;
sl@0: 
sl@0: 	memcpy(buf,p,n);
sl@0: 
sl@0: 	if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
sl@0: 		(p[5] == 0x00) && (p[6] == 0x02))
sl@0: 		{
sl@0: #ifdef OPENSSL_NO_SSL2
sl@0: 		SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
sl@0: 		goto err;
sl@0: #else
sl@0: 		/* we are talking sslv2 */
sl@0: 		/* we need to clean up the SSLv3 setup and put in the
sl@0: 		 * sslv2 stuff. */
sl@0: 		int ch_len;
sl@0: 
sl@0: 		if (s->options & SSL_OP_NO_SSLv2)
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
sl@0: 			goto err;
sl@0: 			}
sl@0: 		if (s->s2 == NULL)
sl@0: 			{
sl@0: 			if (!ssl2_new(s))
sl@0: 				goto err;
sl@0: 			}
sl@0: 		else
sl@0: 			ssl2_clear(s);
sl@0: 
sl@0: 		if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
sl@0: 			ch_len=SSL2_CHALLENGE_LENGTH;
sl@0: 		else
sl@0: 			ch_len=SSL2_MAX_CHALLENGE_LENGTH;
sl@0: 
sl@0: 		/* write out sslv2 challenge */
sl@0: 		i=(SSL3_RANDOM_SIZE < ch_len)
sl@0: 			?SSL3_RANDOM_SIZE:ch_len;
sl@0: 		s->s2->challenge_length=i;
sl@0: 		memcpy(s->s2->challenge,
sl@0: 			&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
sl@0: 
sl@0: 		if (s->s3 != NULL) ssl3_free(s);
sl@0: 
sl@0: 		if (!BUF_MEM_grow_clean(s->init_buf,
sl@0: 			SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER))
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,ERR_R_BUF_LIB);
sl@0: 			goto err;
sl@0: 			}
sl@0: 
sl@0: 		s->state=SSL2_ST_GET_SERVER_HELLO_A;
sl@0: 		if (!(s->client_version == SSL2_VERSION))
sl@0: 			/* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */
sl@0: 			s->s2->ssl2_rollback=1;
sl@0: 
sl@0: 		/* setup the 5 bytes we have read so we get them from
sl@0: 		 * the sslv2 buffer */
sl@0: 		s->rstate=SSL_ST_READ_HEADER;
sl@0: 		s->packet_length=n;
sl@0: 		s->packet= &(s->s2->rbuf[0]);
sl@0: 		memcpy(s->packet,buf,n);
sl@0: 		s->s2->rbuf_left=n;
sl@0: 		s->s2->rbuf_offs=0;
sl@0: 
sl@0: 		/* we have already written one */
sl@0: 		s->s2->write_sequence=1;
sl@0: 
sl@0: 		s->method=SSLv2_client_method();
sl@0: 		s->handshake_func=s->method->ssl_connect;
sl@0: #endif
sl@0: 		}
sl@0: 	else if ((p[0] == SSL3_RT_HANDSHAKE) &&
sl@0: 		 (p[1] == SSL3_VERSION_MAJOR) &&
sl@0: 		 ((p[2] == SSL3_VERSION_MINOR) ||
sl@0: 		  (p[2] == TLS1_VERSION_MINOR)) &&
sl@0: 		 (p[5] == SSL3_MT_SERVER_HELLO))
sl@0: 		{
sl@0: 		/* we have sslv3 or tls1 */
sl@0: 
sl@0: 		if (!ssl_init_wbio_buffer(s,1)) goto err;
sl@0: 
sl@0: 		/* we are in this state */
sl@0: 		s->state=SSL3_ST_CR_SRVR_HELLO_A;
sl@0: 
sl@0: 		/* put the 5 bytes we have read into the input buffer
sl@0: 		 * for SSLv3 */
sl@0: 		s->rstate=SSL_ST_READ_HEADER;
sl@0: 		s->packet_length=n;
sl@0: 		s->packet= &(s->s3->rbuf.buf[0]);
sl@0: 		memcpy(s->packet,buf,n);
sl@0: 		s->s3->rbuf.left=n;
sl@0: 		s->s3->rbuf.offset=0;
sl@0: 
sl@0: 		if ((p[2] == SSL3_VERSION_MINOR) &&
sl@0: 			!(s->options & SSL_OP_NO_SSLv3))
sl@0: 			{
sl@0: 			s->version=SSL3_VERSION;
sl@0: 			s->method=SSLv3_client_method();
sl@0: 			}
sl@0: 		else if ((p[2] == TLS1_VERSION_MINOR) &&
sl@0: 			!(s->options & SSL_OP_NO_TLSv1))
sl@0: 			{
sl@0: 			s->version=TLS1_VERSION;
sl@0: 			s->method=TLSv1_client_method();
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
sl@0: 			goto err;
sl@0: 			}
sl@0: 			
sl@0: 		s->handshake_func=s->method->ssl_connect;
sl@0: 		}
sl@0: 	else if ((p[0] == SSL3_RT_ALERT) &&
sl@0: 		 (p[1] == SSL3_VERSION_MAJOR) &&
sl@0: 		 ((p[2] == SSL3_VERSION_MINOR) ||
sl@0: 		  (p[2] == TLS1_VERSION_MINOR)) &&
sl@0: 		 (p[3] == 0) &&
sl@0: 		 (p[4] == 2))
sl@0: 		{
sl@0: 		void (*cb)(const SSL *ssl,int type,int val)=NULL;
sl@0: 		int j;
sl@0: 
sl@0: 		/* An alert */
sl@0: 		if (s->info_callback != NULL)
sl@0: 			cb=s->info_callback;
sl@0: 		else if (s->ctx->info_callback != NULL)
sl@0: 			cb=s->ctx->info_callback;
sl@0:  
sl@0: 		i=p[5];
sl@0: 		if (cb != NULL)
sl@0: 			{
sl@0: 			j=(i<<8)|p[6];
sl@0: 			cb(s,SSL_CB_READ_ALERT,j);
sl@0: 			}
sl@0: 
sl@0: 		s->rwstate=SSL_NOTHING;
sl@0: 		SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNKNOWN_PROTOCOL);
sl@0: 		goto err;
sl@0: 		}
sl@0: 	s->init_num=0;
sl@0: 
sl@0: 	/* Since, if we are sending a ssl23 client hello, we are not
sl@0: 	 * reusing a session-id */
sl@0: 	if (!ssl_get_new_session(s,0))
sl@0: 		goto err;
sl@0: 
sl@0: 	return(SSL_connect(s));
sl@0: err:
sl@0: 	return(-1);
sl@0: 	}
sl@0: