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ssl_tls.c: Reject TLS 1.3 version configuration for server

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2022-03-15 15:18:51 +01:00
parent 8457c12127
commit 086ee0be0e
3 changed files with 21 additions and 14 deletions
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19
library/ssl_tls.c
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@ -853,12 +853,21 @@ void mbedtls_ssl_init( mbedtls_ssl_context *ssl )
static int ssl_conf_version_check( const mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_config *conf = ssl->conf;
#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
if( mbedtls_ssl_conf_is_tls13_only( ssl->conf ) )
if( mbedtls_ssl_conf_is_tls13_enabled( conf ) &&
( conf->endpoint == MBEDTLS_SSL_IS_SERVER ) )
{
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS 1.3 server is not supported yet." ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
if( mbedtls_ssl_conf_is_tls13_only( conf ) )
{
if( conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS 1.3 is not yet supported" ) );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS 1.3 is not yet supported." ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
MBEDTLS_SSL_DEBUG_MSG( 4, ( "The SSL configuration is tls13 only." ) );
@ -867,7 +876,7 @@ static int ssl_conf_version_check( const mbedtls_ssl_context *ssl )
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( mbedtls_ssl_conf_is_tls12_only( ssl->conf ) )
if( mbedtls_ssl_conf_is_tls12_only( conf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 4, ( "The SSL configuration is tls12 only." ) );
return( 0 );
@ -875,7 +884,7 @@ static int ssl_conf_version_check( const mbedtls_ssl_context *ssl )
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && defined(MBEDTLS_SSL_PROTO_TLS1_3)
if( mbedtls_ssl_conf_is_hybrid_tls12_tls13( ssl->conf ) )
if( mbedtls_ssl_conf_is_hybrid_tls12_tls13( conf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Hybrid TLS 1.2 + TLS 1.3 configurations are not yet supported" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );