1 files changed, 615 insertions, 0 deletions

diff --git a/openssl/ssl/s23_clnt.c b/openssl/ssl/s23_clnt.c
new file mode 100644
index 000000000..bc918170e
--- /dev/null
+++ b/openssl/ssl/s23_clnt.c
@@ -0,0 +1,615 @@
+/* ssl/s23_clnt.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 "ssl_locl.h"
+#include <openssl/buffer.h>
+#include <openssl/rand.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+
+static SSL_METHOD *ssl23_get_client_method(int ver);
+static int ssl23_client_hello(SSL *s);
+static int ssl23_get_server_hello(SSL *s);
+static SSL_METHOD *ssl23_get_client_method(int ver)
+	{
+#ifndef OPENSSL_NO_SSL2
+	if (ver == SSL2_VERSION)
+		return(SSLv2_client_method());
+#endif
+	if (ver == SSL3_VERSION)
+		return(SSLv3_client_method());
+	else if (ver == TLS1_VERSION)
+		return(TLSv1_client_method());
+	else
+		return(NULL);
+	}
+
+IMPLEMENT_ssl23_meth_func(SSLv23_client_method,
+			ssl_undefined_function,
+			ssl23_connect,
+			ssl23_get_client_method)
+
+int ssl23_connect(SSL *s)
+	{
+	BUF_MEM *buf=NULL;
+	unsigned long Time=(unsigned long)time(NULL);
+	void (*cb)(const SSL *ssl,int type,int val)=NULL;
+	int ret= -1;
+	int new_state,state;
+
+	RAND_add(&Time,sizeof(Time),0);
+	ERR_clear_error();
+	clear_sys_error();
+
+	if (s->info_callback != NULL)
+		cb=s->info_callback;
+	else if (s->ctx->info_callback != NULL)
+		cb=s->ctx->info_callback;
+	
+	s->in_handshake++;
+	if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s); 
+
+	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:
+
+			if (s->session != NULL)
+				{
+				SSLerr(SSL_F_SSL23_CONNECT,SSL_R_SSL23_DOING_SESSION_ID_REUSE);
+				ret= -1;
+				goto end;
+				}
+			s->server=0;
+			if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
+
+			/* s->version=TLS1_VERSION; */
+			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;
+				buf=NULL;
+				}
+
+			if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
+
+			ssl3_init_finished_mac(s);
+
+			s->state=SSL23_ST_CW_CLNT_HELLO_A;
+			s->ctx->stats.sess_connect++;
+			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;
+			/* break; */
+
+		default:
+			SSLerr(SSL_F_SSL23_CONNECT,SSL_R_UNKNOWN_STATE);
+			ret= -1;
+			goto end;
+			/* break; */
+			}
+
+		if (s->debug) { (void)BIO_flush(s->wbio); }
+
+		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 (buf != NULL)
+		BUF_MEM_free(buf);
+	if (cb != NULL)
+		cb(s,SSL_CB_CONNECT_EXIT,ret);
+	return(ret);
+	}
+
+
+static int ssl23_client_hello(SSL *s)
+	{
+	unsigned char *buf;
+	unsigned char *p,*d;
+	int i,j,ch_len;
+	unsigned long Time,l;
+	int ssl2_compat;
+	int version = 0, version_major, version_minor;
+	SSL_COMP *comp;
+	int ret;
+
+	ssl2_compat = (s->options & SSL_OP_NO_SSLv2) ? 0 : 1;
+
+	if (!(s->options & SSL_OP_NO_TLSv1))
+		{
+		version = TLS1_VERSION;
+		}
+	else if (!(s->options & SSL_OP_NO_SSLv3))
+		{
+		version = SSL3_VERSION;
+		}
+	else if (!(s->options & SSL_OP_NO_SSLv2))
+		{
+		version = SSL2_VERSION;
+		}
+#ifndef OPENSSL_NO_TLSEXT 
+	if (version != SSL2_VERSION)
+		{
+		/* have to disable SSL 2.0 compatibility if we need TLS extensions */
+
+		if (s->tlsext_hostname != NULL)
+			ssl2_compat = 0;
+		if (s->tlsext_status_type != -1)
+			ssl2_compat = 0;
+		}
+#endif
+
+	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;
+		Time=(unsigned long)time(NULL);		/* Time */
+		l2n(Time,p);
+		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
+			return -1;
+
+		if (version == TLS1_VERSION)
+			{
+			version_major = TLS1_VERSION_MAJOR;
+			version_minor = TLS1_VERSION_MINOR;
+			}
+#ifdef OPENSSL_FIPS
+		else if(FIPS_mode())
+			{
+			SSLerr(SSL_F_SSL23_CLIENT_HELLO,
+					SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
+			return -1;
+			}
+#endif
+		else if (version == SSL3_VERSION)
+			{
+			version_major = SSL3_VERSION_MAJOR;
+			version_minor = SSL3_VERSION_MINOR;
+			}
+		else if (version == SSL2_VERSION)
+			{
+			version_major = SSL2_VERSION_MAJOR;
+			version_minor = SSL2_VERSION_MINOR;
+			}
+		else
+			{
+			SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE);
+			return(-1);
+			}
+
+		s->client_version = version;
+
+		if (ssl2_compat)
+			{
+			/* create SSL 2.0 compatible Client Hello */
+
+			/* two byte record header will be written last */
+			d = &(buf[2]);
+			p = d + 9; /* leave space for message type, version, individual length fields */
+
+			*(d++) = SSL2_MT_CLIENT_HELLO;
+			*(d++) = version_major;
+			*(d++) = version_minor;
+			
+			/* Ciphers supported */
+			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0);
+			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 length (zero since there is no reuse) */
+#if 0
+			s->session->session_id_length=0;
+#endif
+			s2n(0,d);
+
+			if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
+				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);
+			if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0)
+				return -1;
+
+			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);
+
+			/* number of bytes to write */
+			s->init_num=i+2;
+			s->init_off=0;
+
+			ssl3_finish_mac(s,&(buf[2]),i);
+			}
+		else
+			{
+			/* create Client Hello in SSL 3.0/TLS 1.0 format */
+
+			/* do the record header (5 bytes) and handshake message header (4 bytes) last */
+			d = p = &(buf[9]);
+			
+			*(p++) = version_major;
+			*(p++) = version_minor;
+
+			/* Random stuff */
+			memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);
+			p += SSL3_RANDOM_SIZE;
+
+			/* Session ID (zero since there is no reuse) */
+			*(p++) = 0;
+
+			/* Ciphers supported (using SSL 3.0/TLS 1.0 format) */
+			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char);
+			if (i == 0)
+				{
+				SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
+				return -1;
+				}
+			s2n(i,p);
+			p+=i;
+
+			/* COMPRESSION */
+			if (s->ctx->comp_methods == NULL)
+				j=0;
+			else
+				j=sk_SSL_COMP_num(s->ctx->comp_methods);
+			*(p++)=1+j;
+			for (i=0; i<j; i++)
+				{
+				comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
+				*(p++)=comp->id;
+				}
+			*(p++)=0; /* Add the NULL method */
+#ifndef OPENSSL_NO_TLSEXT
+			if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
+				{
+				SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+				return -1;
+				}
+#endif
+			
+			l = p-d;
+			*p = 42;
+
+			/* fill in 4-byte handshake header */
+			d=&(buf[5]);
+			*(d++)=SSL3_MT_CLIENT_HELLO;
+			l2n3(l,d);
+
+			l += 4;
+
+			if (l > SSL3_RT_MAX_PLAIN_LENGTH)
+				{
+				SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+				return -1;
+				}
+			
+			/* fill in 5-byte record header */
+			d=buf;
+			*(d++) = SSL3_RT_HANDSHAKE;
+			*(d++) = version_major;
+			*(d++) = version_minor; /* arguably we should send the *lowest* suported version here
+			                         * (indicating, e.g., TLS 1.0 in "SSL 3.0 format") */
+			s2n((int)l,d);
+
+			/* number of bytes to write */
+			s->init_num=p-buf;
+			s->init_off=0;
+
+			ssl3_finish_mac(s,&(buf[5]), s->init_num - 5);
+			}
+
+		s->state=SSL23_ST_CW_CLNT_HELLO_B;
+		s->init_off=0;
+		}
+
+	/* SSL3_ST_CW_CLNT_HELLO_B */
+	ret = ssl23_write_bytes(s);
+
+	if ((ret >= 2) && s->msg_callback)
+		{
+		/* Client Hello has been sent; tell msg_callback */
+
+		if (ssl2_compat)
+			s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg);
+		else
+			s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg);
+		}
+
+	return ret;
+	}
+
+static int ssl23_get_server_hello(SSL *s)
+	{
+	char buf[8];
+	unsigned char *p;
+	int i;
+	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))
+		{
+#ifdef OPENSSL_NO_SSL2
+		SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
+		goto err;
+#else
+		/* we are talking sslv2 */
+		/* we need to clean up the SSLv3 setup and put in the
+		 * sslv2 stuff. */
+		int ch_len;
+
+		if (s->options & SSL_OP_NO_SSLv2)
+			{
+			SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
+			goto err;
+			}
+		if (s->s2 == NULL)
+			{
+			if (!ssl2_new(s))
+				goto err;
+			}
+		else
+			ssl2_clear(s);
+
+		if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
+			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);
+
+		if (!BUF_MEM_grow_clean(s->init_buf,
+			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;
+		if (!(s->client_version == SSL2_VERSION))
+			/* use special padding (SSL 3.0 draft/RFC 2246, App. E.2) */
+			s->s2->ssl2_rollback=1;
+
+		/* 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;
+#endif
+		}
+	else if ((p[0] == SSL3_RT_HANDSHAKE) &&
+		 (p[1] == SSL3_VERSION_MAJOR) &&
+		 ((p[2] == SSL3_VERSION_MINOR) ||
+		  (p[2] == TLS1_VERSION_MINOR)) &&
+		 (p[5] == SSL3_MT_SERVER_HELLO))
+		{
+		/* we have sslv3 or tls1 */
+
+		if (!ssl_init_wbio_buffer(s,1)) goto err;
+
+		/* 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;
+
+		if ((p[2] == SSL3_VERSION_MINOR) &&
+			!(s->options & SSL_OP_NO_SSLv3))
+			{
+#ifdef OPENSSL_FIPS
+			if(FIPS_mode())
+				{
+				SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,
+					SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
+				goto err;
+				}
+#endif
+			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;
+			}
+			
+		s->handshake_func=s->method->ssl_connect;
+		}
+	else if ((p[0] == SSL3_RT_ALERT) &&
+		 (p[1] == SSL3_VERSION_MAJOR) &&
+		 ((p[2] == SSL3_VERSION_MINOR) ||
+		  (p[2] == TLS1_VERSION_MINOR)) &&
+		 (p[3] == 0) &&
+		 (p[4] == 2))
+		{
+		void (*cb)(const SSL *ssl,int type,int val)=NULL;
+		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;
+		SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
+		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;
+
+	return(SSL_connect(s));
+err:
+	return(-1);
+	}
+