Add alerts to the tls 1.3 record layer and handshake layer

ok jsing@, inoguchi@, tb@

1 files changed, 3 insertions, 5 deletions

diff --git a/src/lib/libssl/tls13_handshake.c b/src/lib/libssl/tls13_handshake.c
index 9f087888e1..c86187caec 100644
--- a/src/lib/libssl/tls13_handshake.c
+++ b/src/lib/libssl/tls13_handshake.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: tls13_handshake.c,v 1.36 2019/11/17 06:43:46 jsing Exp $      */
+/*      $OpenBSD: tls13_handshake.c,v 1.37 2020/01/20 22:04:17 beck Exp $       */
 /*
  * Copyright (c) 2018-2019 Theo Buehler <tb@openbsd.org>
  * Copyright (c) 2019 Joel Sing <jsing@openbsd.org>
@@ -382,10 +382,8 @@ tls13_handshake_recv_action(struct tls13_ctx *ctx,
         msg_type = tls13_handshake_msg_type(ctx->hs_msg);
         if (msg_type != action->handshake_type &&
             (msg_type != TLS13_MT_CERTIFICATE ||
-             action->handshake_type != TLS13_MT_CERTIFICATE_REQUEST)) {
-                /* XXX send unexpected message alert */
-                return TLS13_IO_FAILURE;
-        }
+             action->handshake_type != TLS13_MT_CERTIFICATE_REQUEST))
+                return tls13_send_alert(ctx->rl, SSL_AD_UNEXPECTED_MESSAGE);
 
         /* XXX provide CBS and check all consumed. */
         ret = TLS13_IO_FAILURE;