commit 05420b120b5a529a246f301492434c139b6ae403
author XiaokangQian <xiaokang.qian@arm.com> Wed Sep 29 08:46:37 2021 +0000
committer XiaokangQian <xiaokang.qian@arm.com> Thu Sep 30 06:15:18 2021 +0000
tree d57c2db3c820e145bfa9a25b3f1a7f9090419dd4
parent 16c61aa7385da89712d345b68959ef62d26f1c69

TLS1.3: Add useful comments based on RFC8446

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>

library/ssl_tls13_generic.c

diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index f711233..99ab269 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -46,11 +46,18 @@
     {
         MBEDTLS_SSL_DEBUG_MSG( 1, ( "Receive unexpected handshake message." ) );
         MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
-                              MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
+                                      MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
         ret = MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
         goto cleanup;
     }
 
+    /*
+     * Jump handshake header (4 bytes, see Section 4 of RFC 8446).
+     *    ...
+     *    HandshakeType msg_type;
+     *    uint24 length;
+     *    ...
+     */
     *buf    = ssl->in_msg   + 4;
     *buflen = ssl->in_hslen - 4;