X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=ssl%2Fs23_srvr.c;h=9d47c22cb86e98f70e57611a26caae9a6ba9a4ac;hb=e933f91f50108a43c0198cdc63ecdfdbc77b4d0d;hp=9d5481cd0e020c07a150cf04f70e4a76411c2b41;hpb=8671b898609777c95aedf33743419a523874e6e8;p=openssl.git

diff --git a/ssl/s23_srvr.c b/ssl/s23_srvr.c
index 9d5481cd0e..9d47c22cb8 100644
--- a/ssl/s23_srvr.c
+++ b/ssl/s23_srvr.c
@@ -115,6 +115,9 @@
 #include <openssl/rand.h>
 #include <openssl/objects.h>
 #include <openssl/evp.h>
+#ifdef OPENSSL_FIPS
+#include <openssl/fips.h>
+#endif
 
 static const SSL_METHOD *ssl23_get_server_method(int ver);
 int ssl23_get_client_hello(SSL *s);
@@ -128,6 +131,10 @@ static const SSL_METHOD *ssl23_get_server_method(int ver)
 		return(SSLv3_server_method());
 	else if (ver == TLS1_VERSION)
 		return(TLSv1_server_method());
+	else if (ver == TLS1_1_VERSION)
+		return(TLSv1_1_server_method());
+	else if (ver == TLS1_2_VERSION)
+		return(TLSv1_2_server_method());
 	else
 		return(NULL);
 	}
@@ -283,7 +290,20 @@ int ssl23_get_client_hello(SSL *s)
 				/* SSLv3/TLSv1 */
 				if (p[4] >= TLS1_VERSION_MINOR)
 					{
-					if (!(s->options & SSL_OP_NO_TLSv1))
+					if (p[4] >= TLS1_2_VERSION_MINOR &&
+					   !(s->options & SSL_OP_NO_TLSv1_2))
+						{
+						s->version=TLS1_2_VERSION;
+						s->state=SSL23_ST_SR_CLNT_HELLO_B;
+						}
+					else if (p[4] >= TLS1_1_VERSION_MINOR &&
+					   !(s->options & SSL_OP_NO_TLSv1_1))
+						{
+						s->version=TLS1_1_VERSION;
+						/* type=2; */ /* done later to survive restarts */
+						s->state=SSL23_ST_SR_CLNT_HELLO_B;
+						}
+					else if (!(s->options & SSL_OP_NO_TLSv1))
 						{
 						s->version=TLS1_VERSION;
 						/* type=2; */ /* done later to survive restarts */
@@ -315,7 +335,7 @@ int ssl23_get_client_hello(SSL *s)
 			 (p[1] == SSL3_VERSION_MAJOR) &&
 			 (p[5] == SSL3_MT_CLIENT_HELLO) &&
 			 ((p[3] == 0 && p[4] < 5 /* silly record length? */)
-				|| (p[9] == p[1])))
+				|| (p[9] >= p[1])))
 			{
 			/*
 			 * SSLv3 or tls1 header
@@ -339,11 +359,30 @@ int ssl23_get_client_hello(SSL *s)
 				v[1] = TLS1_VERSION_MINOR;
 #endif
 				}
+			/* if major version number > 3 set minor to a value
+			 * which will use the highest version 3 we support.
+			 * If TLS 2.0 ever appears we will need to revise
+			 * this....
+			 */
+			else if (p[9] > SSL3_VERSION_MAJOR)
+				v[1]=0xff;
 			else
 				v[1]=p[10]; /* minor version according to client_version */
 			if (v[1] >= TLS1_VERSION_MINOR)
 				{
-				if (!(s->options & SSL_OP_NO_TLSv1))
+				if (v[1] >= TLS1_2_VERSION_MINOR &&
+					!(s->options & SSL_OP_NO_TLSv1_2))
+					{
+					s->version=TLS1_2_VERSION;
+					type=3;
+					}
+				else if (v[1] >= TLS1_1_VERSION_MINOR &&
+					!(s->options & SSL_OP_NO_TLSv1_1))
+					{
+					s->version=TLS1_1_VERSION;
+					type=3;
+					}
+				else if (!(s->options & SSL_OP_NO_TLSv1))
 					{
 					s->version=TLS1_VERSION;
 					type=3;
@@ -386,6 +425,22 @@ int ssl23_get_client_hello(SSL *s)
 			}
 		}
 
+	if (s->version < TLS1_2_VERSION && tls1_suiteb(s))
+		{
+		SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,
+				SSL_R_ONLY_TLS_1_2_ALLOWED_IN_SUITEB_MODE);
+		goto err;
+		}
+
+#ifdef OPENSSL_FIPS
+	if (FIPS_mode() && (s->version < TLS1_VERSION))
+		{
+		SSLerr(SSL_F_SSL23_GET_CLIENT_HELLO,
+					SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
+		goto err;
+		}
+#endif
+
 	if (s->state == SSL23_ST_SR_CLNT_HELLO_B)
 		{
 		/* we have SSLv3/TLSv1 in an SSLv2 header
@@ -560,8 +615,11 @@ int ssl23_get_client_hello(SSL *s)
 			s->s3->rbuf.left=0;
 			s->s3->rbuf.offset=0;
 			}
-
-		if (s->version == TLS1_VERSION)
+		if (s->version == TLS1_2_VERSION)
+			s->method = TLSv1_2_server_method();
+		else if (s->version == TLS1_1_VERSION)
+			s->method = TLSv1_1_server_method();
+		else if (s->version == TLS1_VERSION)
 			s->method = TLSv1_server_method();
 		else
 			s->method = SSLv3_server_method();