commit 7533635e5acbc3d28d1da334ebc006a57386feff
author Jerry Yu <jerry.h.yu@arm.com> Wed Sep 01 15:59:36 2021 +0800
committer Jerry Yu <jerry.h.yu@arm.com> Wed Sep 08 09:52:15 2021 +0800
tree b6e2495a8d3170a9c1156c98b5f21ec00420d61d
parent 3c28fd3393a2e859e70e9f1371e59d3d514604ec

Change dummy extension return

With error return, server can not receive
Client Hello message.

If received , we can test current status.

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>

library/ssl_tls13_generic.c

diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index ca4c167..1ff23bc 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -24,9 +24,11 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
 
 #include "mbedtls/error.h"
+#include "mbedtls/debug.h"
 
 #include "ssl_misc.h"
 
+
 int mbedtls_ssl_tls13_start_handshake_msg( mbedtls_ssl_context *ssl,
                                            unsigned hs_type,
                                            unsigned char **buf,
@@ -108,8 +110,9 @@
     ((void) ssl);
     ((void) buf);
     ((void) end);
-    ((void) olen);
-    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+    *olen = 0;
+    MBEDTLS_SSL_DEBUG_MSG( 3, ( "signature_algorithm extension is not available" ) );
+    return( 0 );
 }
 
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */