* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
#include <stdio.h>
+#include "ssl_locl.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
-#include "ssl_locl.h"
-static SSL_METHOD *ssl23_get_client_method(int ver);
+static const 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)
+static const SSL_METHOD *ssl23_get_client_method(int ver)
{
-#ifndef NO_SSL2
+#ifndef OPENSSL_NO_SSL2
if (ver == SSL2_VERSION)
return(SSLv2_client_method());
#endif
+#ifndef OPENSSL_NO_SSL3
if (ver == SSL3_VERSION)
return(SSLv3_client_method());
- else if (ver == TLS1_VERSION)
+#endif
+ if (ver == TLS1_VERSION)
return(TLSv1_client_method());
+ else if (ver == TLS1_1_VERSION)
+ return(TLSv1_1_client_method());
+ else if (ver == TLS1_2_VERSION)
+ return(TLSv1_2_client_method());
else
return(NULL);
}
-SSL_METHOD *SSLv23_client_method(void)
- {
- static int init=1;
- static SSL_METHOD SSLv23_client_data;
-
- 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;
- }
- return(&SSLv23_client_data);
- }
+IMPLEMENT_ssl23_meth_func(SSLv23_client_method,
+ ssl_undefined_function,
+ ssl23_connect,
+ ssl23_get_client_method)
int ssl23_connect(SSL *s)
{
- BUF_MEM *buf;
- unsigned long Time=time(NULL);
- void (*cb)()=NULL;
+ 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;
else if (s->ctx->info_callback != NULL)
cb=s->ctx->info_callback;
- if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
s->in_handshake++;
+ if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
for (;;)
{
goto end;
}
s->init_buf=buf;
+ buf=NULL;
}
if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
}
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_no_ssl2_ciphers(SSL *s)
+ {
+ SSL_CIPHER *cipher;
+ STACK_OF(SSL_CIPHER) *ciphers;
+ int i;
+ ssl_set_client_disabled(s);
+ ciphers = SSL_get_ciphers(s);
+ for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++)
+ {
+ cipher = sk_SSL_CIPHER_value(ciphers, i);
+ if (ssl_cipher_disabled(s, cipher, SSL_SECOP_CIPHER_SUPPORTED))
+ continue;
+ if (cipher->algorithm_ssl == SSL_SSLV2)
+ return 0;
+ }
+ return 1;
+ }
+
+/* Fill a ClientRandom or ServerRandom field of length len. Returns <= 0
+ * on failure, 1 on success. */
+int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, int len)
+ {
+ int send_time = 0;
+ if (len < 4)
+ return 0;
+ if (server)
+ send_time = (s->mode & SSL_MODE_SEND_SERVERHELLO_TIME) != 0;
+ else
+ send_time = (s->mode & SSL_MODE_SEND_CLIENTHELLO_TIME) != 0;
+ if (send_time)
+ {
+ unsigned long Time = (unsigned long)time(NULL);
+ unsigned char *p = result;
+ l2n(Time, p);
+ return RAND_pseudo_bytes(p, len-4);
+ }
+ else
+ return RAND_pseudo_bytes(result, len);
+ }
static int ssl23_client_hello(SSL *s)
{
unsigned char *buf;
unsigned char *p,*d;
int i,ch_len;
+ unsigned long l;
+ int ssl2_compat;
+ int version = 0, version_major, version_minor;
+ int al = 0;
+#ifndef OPENSSL_NO_COMP
+ int j;
+ SSL_COMP *comp;
+#endif
+ int ret;
+ unsigned long mask, options = s->options;
+
+ ssl2_compat = (options & SSL_OP_NO_SSLv2) ? 0 : 1;
+
+ if (ssl2_compat && !ssl_security(s, SSL_SECOP_SSL2_COMPAT, 0, 0, NULL))
+ ssl2_compat = 0;
+ if (ssl2_compat && ssl23_no_ssl2_ciphers(s))
+ ssl2_compat = 0;
+
+ /*
+ * SSL_OP_NO_X disables all protocols above X *if* there are
+ * some protocols below X enabled. This is required in order
+ * to maintain "version capability" vector contiguous. So
+ * that if application wants to disable TLS1.0 in favour of
+ * TLS1>=1, it would be insufficient to pass SSL_NO_TLSv1, the
+ * answer is SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2.
+ */
+ mask = SSL_OP_NO_TLSv1_1|SSL_OP_NO_TLSv1
+#if !defined(OPENSSL_NO_SSL3)
+ |SSL_OP_NO_SSLv3
+#endif
+#if !defined(OPENSSL_NO_SSL2)
+ |(ssl2_compat?SSL_OP_NO_SSLv2:0)
+#endif
+ ;
+#if !defined(OPENSSL_NO_TLS1_2_CLIENT)
+ version = TLS1_2_VERSION;
+
+ if ((options & SSL_OP_NO_TLSv1_2) && (options & mask) != mask)
+ version = TLS1_1_VERSION;
+#else
+ version = TLS1_1_VERSION;
+#endif
+ mask &= ~SSL_OP_NO_TLSv1_1;
+ if ((options & SSL_OP_NO_TLSv1_1) && (options & mask) != mask)
+ version = TLS1_VERSION;
+ mask &= ~SSL_OP_NO_TLSv1;
+#if !defined(OPENSSL_NO_SSL3)
+ if ((options & SSL_OP_NO_TLSv1) && (options & mask) != mask)
+ version = SSL3_VERSION;
+ mask &= ~SSL_OP_NO_SSLv3;
+#endif
+#if !defined(OPENSSL_NO_SSL2)
+ if ((options & SSL_OP_NO_SSLv3) && (options & mask) != mask)
+ version = SSL2_VERSION;
+#endif
+
+#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;
+#ifdef TLSEXT_TYPE_opaque_prf_input
+ if (s->ctx->tlsext_opaque_prf_input_callback != 0 || s->tlsext_opaque_prf_input != NULL)
+ ssl2_compat = 0;
+#endif
+ if (s->cert->cli_ext.meths_count != 0)
+ ssl2_compat = 0;
+ }
+#endif
buf=(unsigned char *)s->init_buf->data;
if (s->state == SSL23_ST_CW_CLNT_HELLO_A)
#endif
p=s->s3->client_random;
- RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE);
-
- /* Do the message type and length last */
- d= &(buf[2]);
- p=d+9;
+ if (ssl_fill_hello_random(s, 0, p, SSL3_RANDOM_SIZE) <= 0)
+ return -1;
- *(d++)=SSL2_MT_CLIENT_HELLO;
- if (!(s->options & SSL_OP_NO_TLSv1))
+ if (version == TLS1_2_VERSION)
+ {
+ version_major = TLS1_2_VERSION_MAJOR;
+ version_minor = TLS1_2_VERSION_MINOR;
+ }
+ else if (tls1_suiteb(s))
+ {
+ SSLerr(SSL_F_SSL23_CLIENT_HELLO,
+ SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
+ return -1;
+ }
+ else if (version == TLS1_1_VERSION)
+ {
+ version_major = TLS1_1_VERSION_MAJOR;
+ version_minor = TLS1_1_VERSION_MINOR;
+ }
+ else if (version == TLS1_VERSION)
{
- *(d++)=TLS1_VERSION_MAJOR;
- *(d++)=TLS1_VERSION_MINOR;
- s->client_version=TLS1_VERSION;
+ version_major = TLS1_VERSION_MAJOR;
+ version_minor = TLS1_VERSION_MINOR;
}
- else if (!(s->options & SSL_OP_NO_SSLv3))
+#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)
{
- *(d++)=SSL3_VERSION_MAJOR;
- *(d++)=SSL3_VERSION_MINOR;
- s->client_version=SSL3_VERSION;
+ version_major = SSL3_VERSION_MAJOR;
+ version_minor = SSL3_VERSION_MINOR;
}
- else if (!(s->options & SSL_OP_NO_SSLv2))
+ else if (version == SSL2_VERSION)
{
- *(d++)=SSL2_VERSION_MAJOR;
- *(d++)=SSL2_VERSION_MINOR;
- s->client_version=SSL2_VERSION;
+ version_major = SSL2_VERSION_MAJOR;
+ version_minor = SSL2_VERSION_MINOR;
}
else
{
return(-1);
}
- /* Ciphers supported */
- i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p);
- if (i == 0)
+ s->client_version = version;
+
+ if (ssl2_compat)
{
- /* no ciphers */
- SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
- return(-1);
- }
- s2n(i,d);
- p+=i;
+ /* create SSL 2.0 compatible Client Hello */
- /* put in the session-id, zero since there is no
- * reuse. */
+ /* 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;
+ s->session->session_id_length=0;
#endif
- s2n(0,d);
-
- if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)
- ch_len=SSL2_CHALLENGE_LENGTH;
+ 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 */
+ /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32),
+ because it is one of SSL2_MAX_CHALLENGE_LENGTH (32)
+ or SSL2_MAX_CHALLENGE_LENGTH (16), but leave the
+ check in for futurproofing */
+ 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
- ch_len=SSL2_MAX_CHALLENGE_LENGTH;
+ {
+ /* create Client Hello in SSL 3.0/TLS 1.0 format */
- /* 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);
- RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
- memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);
- p+=i;
+ /* 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;
- i= p- &(buf[2]);
- buf[0]=((i>>8)&0xff)|0x80;
- buf[1]=(i&0xff);
+ /* 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;
+ }
+#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
+ /* Some servers hang if client hello > 256 bytes
+ * as hack workaround chop number of supported ciphers
+ * to keep it well below this if we use TLS v1.2
+ */
+ if (TLS1_get_version(s) >= TLS1_2_VERSION
+ && i > OPENSSL_MAX_TLS1_2_CIPHER_LENGTH)
+ i = OPENSSL_MAX_TLS1_2_CIPHER_LENGTH & ~1;
+#endif
+ s2n(i,p);
+ p+=i;
+
+ /* COMPRESSION */
+#ifdef OPENSSL_NO_COMP
+ *(p++)=1;
+#else
+ if (!ssl_allow_compression(s) || !s->ctx->comp_methods)
+ 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;
+ }
+#endif
+ *(p++)=0; /* Add the NULL method */
+
+#ifndef OPENSSL_NO_TLSEXT
+ /* TLS extensions*/
+ if (ssl_prepare_clienthello_tlsext(s) <= 0)
+ {
+ SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
+ return -1;
+ }
+ if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH, &al)) == NULL)
+ {
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
+#endif
+
+ l = p-d;
+
+ /* 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;
+ /* Some servers hang if we use long client hellos
+ * and a record number > TLS 1.0.
+ */
+ if (TLS1_get_client_version(s) > TLS1_VERSION)
+ *(d++) = 1;
+ else
+ *(d++) = version_minor;
+ 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;
- /* 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 */
- return(ssl23_write_bytes(s));
+ 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_HEADER, s->init_buf->data, 5, s, s->msg_callback_arg);
+ 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)
if ((p[0] & 0x80) && (p[2] == SSL2_MT_SERVER_HELLO) &&
(p[5] == 0x00) && (p[6] == 0x02))
{
-#ifdef NO_SSL2
+#ifdef OPENSSL_NO_SSL2
SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_PROTOCOL);
goto err;
#else
ch_len=SSL2_MAX_CHALLENGE_LENGTH;
/* write out sslv2 challenge */
+ /* Note that ch_len must be <= SSL3_RANDOM_SIZE (32), because
+ it is one of SSL2_MAX_CHALLENGE_LENGTH (32) or
+ SSL2_MAX_CHALLENGE_LENGTH (16), but leave the check in for
+ futurproofing */
i=(SSL3_RANDOM_SIZE < ch_len)
?SSL3_RANDOM_SIZE:ch_len;
s->s2->challenge_length=i;
if (s->s3 != NULL) ssl3_free(s);
- if (!BUF_MEM_grow(s->init_buf,
+ 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);
}
s->state=SSL2_ST_GET_SERVER_HELLO_A;
- s->s2->ssl2_rollback=1;
+ 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
+ /* setup the 7 bytes we have read so we get them from
* the sslv2 buffer */
s->rstate=SSL_ST_READ_HEADER;
s->packet_length=n;
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))
+ else if (p[1] == SSL3_VERSION_MAJOR &&
+ p[2] <= TLS1_2_VERSION_MINOR &&
+ ((p[0] == SSL3_RT_HANDSHAKE && p[5] == SSL3_MT_SERVER_HELLO) ||
+ (p[0] == SSL3_RT_ALERT && p[3] == 0 && p[4] == 2)))
{
- /* 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;
+ /* we have sslv3 or tls1 (server hello or alert) */
+#ifndef OPENSSL_NO_SSL3
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) &&
+ else
+#endif
+ if ((p[2] == TLS1_VERSION_MINOR) &&
!(s->options & SSL_OP_NO_TLSv1))
{
s->version=TLS1_VERSION;
s->method=TLSv1_client_method();
}
+ else if ((p[2] == TLS1_1_VERSION_MINOR) &&
+ !(s->options & SSL_OP_NO_TLSv1_1))
+ {
+ s->version=TLS1_1_VERSION;
+ s->method=TLSv1_1_client_method();
+ }
+ else if ((p[2] == TLS1_2_VERSION_MINOR) &&
+ !(s->options & SSL_OP_NO_TLSv1_2))
+ {
+ s->version=TLS1_2_VERSION;
+ s->method=TLSv1_2_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)()=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)
+
+ /* ensure that TLS_MAX_VERSION is up-to-date */
+ OPENSSL_assert(s->version <= TLS_MAX_VERSION);
+
+ if (!ssl_security(s, SSL_SECOP_VERSION, 0, s->version, NULL))
{
- j=(i<<8)|p[6];
- cb(s,SSL_CB_READ_ALERT,j);
+ SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_R_VERSION_TOO_LOW);
+ goto err;
}
- s->rwstate=SSL_NOTHING;
- SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
- goto err;
+ if (p[0] == SSL3_RT_ALERT && p[5] != SSL3_AL_WARNING)
+ {
+ /* fatal alert */
+
+ void (*cb)(const SSL *ssl,int type,int val)=NULL;
+ int j;
+
+ 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);
+ }
+
+ if (s->msg_callback)
+ {
+ s->msg_callback(0, s->version, SSL3_RT_HEADER, p, 5, s, s->msg_callback_arg);
+ s->msg_callback(0, s->version, SSL3_RT_ALERT, p+5, 2, s, s->msg_callback_arg);
+ }
+
+ s->rwstate=SSL_NOTHING;
+ SSLerr(SSL_F_SSL23_GET_SERVER_HELLO,SSL_AD_REASON_OFFSET+p[6]);
+ goto err;
+ }
+
+ if (!ssl_init_wbio_buffer(s,1)) goto err;
+
+ /* we are in this state */
+ s->state=SSL3_ST_CR_SRVR_HELLO_A;
+
+ /* put the 7 bytes we have read into the input buffer
+ * for SSLv3 */
+ s->rstate=SSL_ST_READ_HEADER;
+ s->packet_length=n;
+ if (s->s3->rbuf.buf == NULL)
+ if (!ssl3_setup_read_buffer(s))
+ goto err;
+ s->packet= &(s->s3->rbuf.buf[0]);
+ memcpy(s->packet,buf,n);
+ s->s3->rbuf.left=n;
+ s->s3->rbuf.offset=0;
+
+ s->handshake_func=s->method->ssl_connect;
}
else
{
if (!ssl_get_new_session(s,0))
goto err;
- s->first_packet=1;
return(SSL_connect(s));
err:
return(-1);
}
-
projects / openssl.git / blobdiff