commit f447e8a8d38730cb0973888cfd1cce818942c290
author Xiaokang Qian <xiaokang.qian@arm.com> Tue Nov 08 07:02:27 2022 +0000
committer Xiaokang Qian <xiaokang.qian@arm.com> Mon Nov 14 03:15:36 2022 +0000
tree 33834345fde1dd85c89966e1da2978eca0c09596
parent a341225fd03a96051b482e0fd64623c464885864

Address comments base on reviews

Improve early data indication check
Update test case to gnutls server

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

library/ssl_tls13_client.c

diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index b539f8f..46c7c45 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -705,8 +705,8 @@
 {
     mbedtls_ssl_session *session = ssl->session_negotiate;
     return( ssl->handshake->resume &&
-            session != NULL && session->ticket != NULL &&
             session->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 &&
+            ( session->ticket_flags & MBEDTLS_SSL_TICKET_ALLOW_EARLY_DATA ) &&
             mbedtls_ssl_tls13_cipher_suite_is_offered(
                 ssl, session->ciphersuite ) );
 }
@@ -1174,11 +1174,7 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
     if( mbedtls_ssl_conf_tls13_some_psk_enabled( ssl ) &&
-        ( mbedtls_ssl_conf_has_static_psk( ssl->conf ) == 1
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-          || ssl_tls13_early_data_has_valid_ticket( ssl )
-#endif
-        ) &&
+        ssl_tls13_early_data_has_valid_ticket( ssl ) &&
         ssl->conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED )
     {
         ret = mbedtls_ssl_tls13_write_early_data_ext( ssl, p, end, &ext_len );
@@ -1186,15 +1182,14 @@
             return( ret );
         p += ext_len;
 
-        ssl->handshake->early_data = MBEDTLS_SSL_EARLY_DATA_ON;
-        /* Initializes the status to `rejected`. Changes it to `accepted`
+        /* Initializes the status to `indication sent`. Changes it to `accepted`
          * when `early_data` is received in EncryptedExtesion. */
-        ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED;
+        ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_INDICATION_SENT;
     }
     else
     {
         MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write early_data extension" ) );
-        ssl->handshake->early_data = MBEDTLS_SSL_EARLY_DATA_OFF;
+        ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT;
     }
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
@@ -2543,6 +2538,13 @@
 
         switch( extension_type )
         {
+            case MBEDTLS_TLS_EXT_EARLY_DATA:
+                MBEDTLS_SSL_DEBUG_MSG( 4, ( "early_data extension received" ) );
+                if( extension_data_len == 4 && ssl->session != NULL)
+                    ssl->session->ticket_flags |=
+                            MBEDTLS_SSL_TICKET_ALLOW_EARLY_DATA;
+                break;
+
             default:
                 MBEDTLS_SSL_PRINT_EXT(
                     3, MBEDTLS_SSL_HS_NEW_SESSION_TICKET,