1 files changed, 313 insertions, 0 deletions
diff --git a/tests/handshake-false-start.c b/tests/handshake-false-start.c
new file mode 100644
index 0000000..af8e1b7
--- /dev/null
+++ b/tests/handshake-false-start.c
@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2016 Red Hat, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuTLS is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GnuTLS; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <gnutls/gnutls.h>
+#include "utils.h"
+#include "eagain-common.h"
+#include "cert-common.h"
+
+const char *side;
+
+static void tls_log_func(int level, const char *str)
+{
+	fprintf(stderr, "%s|<%d>| %s", side, level, str);
+}
+
+#define TESTDATA "xxxtesttest1234"
+
+/* counts the number of calls of send_testdata() within a handshake */
+enum {
+	TEST_SEND_RECV,
+	TEST_RECV_SEND,
+	TEST_HANDSHAKE_CALL,
+	TEST_BYE,
+	TESTNO_MAX
+};
+
+#define myfail(fmt, ...) \
+	fail("%s%s %d: "fmt, dtls?"dtls":"tls", name, testno, ##__VA_ARGS__)
+
+static void try(const char *name, unsigned testno, unsigned fs,
+		const char *prio, unsigned dhsize,
+		unsigned dtls)
+{
+	int ret;
+	/* Server stuff. */
+	gnutls_certificate_credentials_t serverx509cred;
+	gnutls_anon_client_credentials_t clientanoncred;
+	gnutls_anon_server_credentials_t serveranoncred;
+	gnutls_session_t server;
+	int sret = GNUTLS_E_AGAIN;
+	char buffer[512];
+	/* Client stuff. */
+	gnutls_certificate_credentials_t clientx509cred;
+	gnutls_session_t client;
+	int cret = GNUTLS_E_AGAIN;
+	const gnutls_datum_t p3_2048 =
+	    { (void *)pkcs3_2048, strlen(pkcs3_2048) };
+	const gnutls_datum_t p3_3072 =
+	    { (void *)pkcs3_3072, strlen(pkcs3_3072) };
+	gnutls_dh_params_t dh_params;
+	unsigned flags = 0;
+
+	if (testno == TEST_HANDSHAKE_CALL && fs == 0)
+		return;
+
+	if (dtls)
+		flags |= GNUTLS_DATAGRAM|GNUTLS_NONBLOCK;
+
+	/* General init. */
+	gnutls_global_set_log_function(tls_log_func);
+	if (debug)
+		gnutls_global_set_log_level(999);
+
+	gnutls_dh_params_init(&dh_params);
+
+	if (dhsize < 3072) {
+		ret = gnutls_dh_params_import_pkcs3(dh_params, &p3_2048,
+						    GNUTLS_X509_FMT_PEM);
+	} else {
+		ret = gnutls_dh_params_import_pkcs3(dh_params, &p3_3072,
+						    GNUTLS_X509_FMT_PEM);
+	}
+
+	/* Init server */
+	gnutls_anon_allocate_server_credentials(&serveranoncred);
+	gnutls_anon_set_server_dh_params(serveranoncred, dh_params);
+
+	gnutls_certificate_allocate_credentials(&serverx509cred);
+	gnutls_certificate_set_x509_key_mem(serverx509cred,
+					    &server_cert, &server_key,
+					    GNUTLS_X509_FMT_PEM);
+	gnutls_certificate_set_x509_key_mem(serverx509cred,
+					    &server_ecc_cert, &server_ecc_key,
+					    GNUTLS_X509_FMT_PEM);
+	gnutls_certificate_set_dh_params(serverx509cred, dh_params);
+
+	gnutls_init(&server, GNUTLS_SERVER|flags);
+	gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, serverx509cred);
+
+	gnutls_credentials_set(server, GNUTLS_CRD_ANON, serveranoncred);
+
+	gnutls_priority_set_direct(server, prio, NULL);
+	gnutls_transport_set_push_function(server, server_push);
+	gnutls_transport_set_pull_function(server, server_pull);
+	gnutls_transport_set_pull_timeout_function(server, server_pull_timeout_func);
+	gnutls_transport_set_ptr(server, server);
+
+	/* Init client */
+
+	gnutls_anon_allocate_client_credentials(&clientanoncred);
+	ret = gnutls_certificate_allocate_credentials(&clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	ret =
+	    gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca_cert,
+						  GNUTLS_X509_FMT_PEM);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_init(&client, GNUTLS_CLIENT|GNUTLS_ENABLE_FALSE_START|flags);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
+				     clientx509cred);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_credentials_set(client, GNUTLS_CRD_ANON, clientanoncred);
+	if (ret < 0)
+		exit(1);
+
+	ret = gnutls_priority_set_direct(client, prio, NULL);
+	if (ret < 0)
+		exit(1);
+
+	gnutls_transport_set_push_function(client, client_push);
+	gnutls_transport_set_pull_function(client, client_pull);
+	gnutls_transport_set_pull_timeout_function(client, client_pull_timeout_func);
+	gnutls_transport_set_ptr(client, client);
+
+	HANDSHAKE(client, server);
+
+	if ((gnutls_session_get_flags(client) & GNUTLS_SFLAGS_FALSE_START)
+	    && !fs) {
+		myfail("false start occurred but not expected\n");
+	}
+
+	if (!(gnutls_session_get_flags(client) & GNUTLS_SFLAGS_FALSE_START)
+	    && fs) {
+		myfail("false start expected but not happened\n");
+	}
+
+	if (testno == TEST_SEND_RECV) {
+		side = "client";
+		ret =
+		    gnutls_record_send(client, TESTDATA, sizeof(TESTDATA) - 1);
+		if (ret < 0) {
+			myfail("error sending false start data: %s\n",
+				gnutls_strerror(ret));
+			exit(1);
+		}
+
+		side = "server";
+		/* verify whether the server received the expected data */
+		ret = gnutls_record_recv(server, buffer, sizeof(buffer));
+		if (ret < 0) {
+			myfail("error receiving data: %s\n",
+				gnutls_strerror(ret));
+		}
+
+		if (ret != sizeof(TESTDATA) - 1) {
+			myfail("error in received data size\n");
+		}
+
+		if (memcmp(buffer, TESTDATA, ret) != 0) {
+			myfail("error in received data\n");
+		}
+
+		/* check handshake completion */
+		ret =
+		    gnutls_record_send(server, TESTDATA, sizeof(TESTDATA) - 1);
+		if (ret < 0) {
+			myfail("error sending false start data: %s\n",
+				gnutls_strerror(ret));
+			exit(1);
+		}
+
+		side = "client";
+		do {
+			ret =
+			    gnutls_record_recv(client, buffer, sizeof(buffer));
+		} while (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED);
+		if (ret < 0) {
+			myfail("error receiving data: %s\n",
+				gnutls_strerror(ret));
+		}
+	} else if (testno == TEST_RECV_SEND) {
+		side = "server";
+		ret =
+		    gnutls_record_send(server, TESTDATA, sizeof(TESTDATA) - 1);
+		if (ret < 0) {
+			myfail("error sending false start data: %s\n",
+				gnutls_strerror(ret));
+			exit(1);
+		}
+
+		side = "client";
+		/* verify whether the server received the expected data */
+		ret = gnutls_record_recv(client, buffer, sizeof(buffer));
+		if (ret < 0) {
+			myfail("error receiving data: %s\n",
+				gnutls_strerror(ret));
+		}
+
+		if (ret != sizeof(TESTDATA) - 1) {
+			myfail("error in received data size\n");
+		}
+
+		if (memcmp(buffer, TESTDATA, ret) != 0) {
+			myfail("error in received data\n");
+		}
+	} else if (testno == TEST_HANDSHAKE_CALL) {
+		/* explicit completion by caller */
+		ret = gnutls_handshake(client);
+		if (ret != GNUTLS_E_HANDSHAKE_DURING_FALSE_START) {
+			myfail
+			    ("error in explicit handshake after false start: %s\n",
+			     gnutls_strerror(ret));
+			exit(1);
+		}
+
+		goto exit;
+	}
+
+	side = "server";
+	ret = gnutls_bye(server, GNUTLS_SHUT_WR);
+	if (ret < 0) {
+		myfail("error in server bye: %s\n",
+			gnutls_strerror(ret));
+	}
+
+	side = "client";
+	ret = gnutls_bye(client, GNUTLS_SHUT_RDWR);
+	if (ret < 0) {
+		myfail("error in client bye: %s\n",
+			gnutls_strerror(ret));
+	}
+
+	success("%5s%s \tok\n", dtls?"dtls-":"tls-", name);
+ exit:
+	gnutls_deinit(client);
+	gnutls_deinit(server);
+
+	gnutls_dh_params_deinit(dh_params);
+	gnutls_anon_free_server_credentials(serveranoncred);
+	gnutls_anon_free_client_credentials(clientanoncred);
+	gnutls_certificate_free_credentials(serverx509cred);
+	gnutls_certificate_free_credentials(clientx509cred);
+}
+
+void doit(void)
+{
+	unsigned i, j;
+
+	global_init();
+
+
+	for (j=0;j<2;j++) {
+		for (i = 0; i < TESTNO_MAX; i++) {
+			try("1.2 anon-dh  :", i, 0, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+ANON-DH", 3072, j);
+			reset_buffers();
+			try("1.2 anon-ecdh:", i, 0, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+ANON-ECDH", 2048, j);
+			reset_buffers();
+			try("1.2 ecdhe-rsa:", i, 1, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+ECDHE-RSA", 2048, j);
+			reset_buffers();
+			try("1.2 ecdhe-x25519-rsa:", i, 1, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+ECDHE-RSA:-CURVE-ALL:+CURVE-X25519", 2048, j);
+			reset_buffers();
+			try("1.2 ecdhe-ecdsa:", i, 1, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+ECDHE-ECDSA", 2048, j);
+			reset_buffers();
+			try("1.2 dhe-rsa-2048:", i, 0, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+DHE-RSA", 2048, j);
+			reset_buffers();
+			try("1.2 dhe-rsa-3072:", i, 1, "NORMAL:-VERS-ALL:+VERS-DTLS1.2:+VERS-TLS1.2:-KX-ALL:+DHE-RSA", 3072, j);
+			reset_buffers();
+		}
+	}
+
+	/* it should work, but false start will not be reported */
+	try("1.3 secp256r1:", i, 0, "NORMAL:-VERS-ALL:+VERS-TLS1.3:-GROUP-ALL:+GROUP-SECP256R1", 2048, 0);
+	reset_buffers();
+	try("1.3 ffdhe2048:", i, 0, "NORMAL:-VERS-ALL:+VERS-TLS1.3:+GROUP-FFDHE2048", 2048, 0);
+	reset_buffers();
+
+	gnutls_global_deinit();
+}