Move state change from CSS states to their main handler

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index c76d5d3..22e8aa4 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1919,22 +1919,6 @@
 }
 
 /*
- * Handler for MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED
- */
-#if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
-static int ssl_tls13_write_change_cipher_spec( mbedtls_ssl_context *ssl )
-{
-    int ret;
-
-    ret = mbedtls_ssl_tls13_write_change_cipher_spec( ssl );
-    if( ret != 0 )
-        return( ret );
-
-    return( 0 );
-}
-#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
-
-/*
  * Handler for MBEDTLS_SSL_CLIENT_CERTIFICATE
  */
 static int ssl_tls13_write_client_certificate( mbedtls_ssl_context *ssl )
@@ -2073,9 +2057,16 @@
          * Injection of dummy-CCS's for middlebox compatibility
          */
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
-        case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
         case MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO:
-            ret = ssl_tls13_write_change_cipher_spec( ssl );
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec( ssl );
+            if( ret == 0 )
+                mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_CLIENT_HELLO );
+            break;
+
+        case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec( ssl );
+            if( ret == 0 )
+                mbedtls_ssl_handshake_set_state( ssl, MBEDTLS_SSL_CLIENT_CERTIFICATE );
             break;
 #endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */