Add a test for 0RTT replay protection
@@ -1858,6 +1858,58 @@ static int test_early_data_read_write(int idx)
return testresult;
}
+static int test_early_data_replay(int idx)
+{
+ SSL_CTX *cctx = NULL, *sctx = NULL;
+ SSL *clientssl = NULL, *serverssl = NULL;
+ int testresult = 0;
+ SSL_SESSION *sess = NULL;
+
+ if (!TEST_true(setupearly_data_test(&cctx, &sctx, &clientssl,
+ &serverssl, &sess, idx)))
+ goto end;
+
+ /*
+ * The server is configured to accept early data. Create a connection to
+ * "use up" the ticket
+ */
+ if (!TEST_true(create_ssl_connection(serverssl, clientssl, SSL_ERROR_NONE))
+ || !TEST_true(SSL_session_reused(clientssl)))
+ goto end;
+
+ SSL_shutdown(clientssl);
+ SSL_shutdown(serverssl);
+ SSL_free(serverssl);
+ SSL_free(clientssl);
+ serverssl = clientssl = NULL;
+
+ if (!TEST_true(create_ssl_objects(sctx, cctx, &serverssl,
+ &clientssl, NULL, NULL))
+ || !TEST_true(SSL_set_session(clientssl, sess))
+ || !TEST_true(create_ssl_connection(serverssl, clientssl,
+ SSL_ERROR_NONE))
+ /*
+ * This time we should not have resumed the session because we
+ * already used it once.
+ */
+ || !TEST_false(SSL_session_reused(clientssl)))
+ goto end;
+
+ testresult = 1;
+
+ end:
+ if (sess != clientpsk)
+ SSL_SESSION_free(sess);
+ SSL_SESSION_free(clientpsk);
+ SSL_SESSION_free(serverpsk);
+ clientpsk = serverpsk = NULL;
+ SSL_free(serverssl);
+ SSL_free(clientssl);
+ SSL_CTX_free(sctx);
+ SSL_CTX_free(cctx);
+ return testresult;
+}
+
/*
* Helper function to test that a server attempting to read early data can
* handle a connection from a client where the early data should be skipped.
@@ -3688,6 +3740,11 @@ int setup_tests(void)
#endif
#ifndef OPENSSL_NO_TLS1_3
ADD_ALL_TESTS(test_early_data_read_write, 3);
+ /*
+ * We don't do replay tests for external PSK. Replay protection isn't used
+ * in that scenario.
+ */
+ ADD_ALL_TESTS(test_early_data_replay, 2);
ADD_ALL_TESTS(test_early_data_skip, 3);
ADD_ALL_TESTS(test_early_data_skip_hrr, 3);
ADD_ALL_TESTS(test_early_data_not_sent, 3);
