From 69dd8d4091fb731514554eb436671b3d452bf502 Mon Sep 17 00:00:00 2001
From: Jerry Yu <jerry.h.yu@arm.com>
Date: Sat, 16 Apr 2022 12:51:26 +0800
Subject: [PATCH] tls13:finished:add dummy frame work

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
---
 library/ssl_tls13_server.c | 52 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 769ed488a..7386d6376 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -1476,6 +1476,42 @@ static int ssl_tls13_write_certificate_verify( mbedtls_ssl_context *ssl )
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
+/*
+ * State Handler: MBEDTLS_SSL_SERVER_FINISHED
+ */
+int ssl_tls13_write_server_finished( mbedtls_ssl_context *ssl )
+{
+    ((void) ssl);
+    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+}
+
+/*
+ * State Handler: MBEDTLS_SSL_CLIENT_FINISHED
+ */
+int ssl_tls13_process_client_finished( mbedtls_ssl_context *ssl )
+{
+    ((void) ssl);
+    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+}
+
+/*
+ * State Handler: MBEDTLS_SSL_FLUSH_BUFFERS
+ */
+int ssl_tls13_flush_buffers( mbedtls_ssl_context *ssl )
+{
+    ((void) ssl);
+    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+}
+
+/*
+ * State Handler: MBEDTLS_SSL_HANDSHAKE_WRAPUP
+ */
+int ssl_tls13_handshake_wrapup( mbedtls_ssl_context *ssl )
+{
+    ((void) ssl);
+    return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
+}
+
 /*
  * TLS 1.3 State Machine -- server side
  */
@@ -1540,6 +1576,22 @@ int mbedtls_ssl_tls13_handshake_server_step( mbedtls_ssl_context *ssl )
             break;
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
+        case MBEDTLS_SSL_SERVER_FINISHED:
+            ret = ssl_tls13_write_server_finished( ssl );
+            break;
+
+        case MBEDTLS_SSL_CLIENT_FINISHED:
+            ret = ssl_tls13_process_client_finished( ssl );
+            break;
+
+        case MBEDTLS_SSL_FLUSH_BUFFERS:
+            ret = ssl_tls13_flush_buffers( ssl );
+            break;
+
+        case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
+            ret = ssl_tls13_handshake_wrapup( ssl );
+            break;
+
         default:
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
             return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );