Add a bi-directional shutdown test

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6340)

1 files changed, 22 insertions, 4 deletions

diff --git a/test/ssltestlib.c b/test/ssltestlib.c
index 2ef4b5d432..a055d3b5d2 100644
--- a/test/ssltestlib.c
+++ b/test/ssltestlib.c
@@ -680,12 +680,14 @@ int create_ssl_objects(SSL_CTX *serverctx, SSL_CTX *clientctx, SSL **sssl,
     return 0;
 }
 
-int create_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
+/*
+ * Create an SSL connection, but does not ready any post-handshake
+ * NewSessionTicket messages.
+ */
+int create_bare_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
 {
-    int retc = -1, rets = -1, err, abortctr = 0, i;
+    int retc = -1, rets = -1, err, abortctr = 0;
     int clienterr = 0, servererr = 0;
-    unsigned char buf;
-    size_t readbytes;
     int isdtls = SSL_is_dtls(serverssl);
 
     do {
@@ -738,6 +740,22 @@ int create_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
         }
     } while (retc <=0 || rets <= 0);
 
+    return 1;
+}
+
+/*
+ * Create an SSL connection including any post handshake NewSessionTicket
+ * messages.
+ */
+int create_ssl_connection(SSL *serverssl, SSL *clientssl, int want)
+{
+    int i;
+    unsigned char buf;
+    size_t readbytes;
+
+    if (!create_bare_ssl_connection(serverssl, clientssl, want))
+        return 0;
+
     /*
      * We attempt to read some data on the client side which we expect to fail.
      * This will ensure we have received the NewSessionTicket in TLSv1.3 where