test-nat: Add nat unit test

1 files changed, 126 insertions, 0 deletions

diff --git a/unit/test-nat.c b/unit/test-nat.c
new file mode 100644
index 00000000..a601871d
--- /dev/null
+++ b/unit/test-nat.c
@@ -0,0 +1,126 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2012  BWM CarIT GmbH. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+
+#include "../src/connman.h"
+
+/* #define DEBUG */
+#ifdef DEBUG
+#include <stdio.h>
+
+#define LOG(fmt, arg...) do { \
+	fprintf(stdout, "%s:%s() " fmt "\n", \
+			__FILE__, __func__ , ## arg); \
+} while (0)
+#else
+#define LOG(fmt, arg...)
+#endif
+
+struct connman_notifier *nat_notifier;
+
+struct connman_service {
+	char *dummy;
+};
+
+char *connman_service_get_interface(struct connman_service *service)
+{
+	return "eth0";
+}
+
+int connman_notifier_register(struct connman_notifier *notifier)
+{
+	nat_notifier = notifier;
+
+	return 0;
+}
+
+void connman_notifier_unregister(struct connman_notifier *notifier)
+{
+	nat_notifier = NULL;
+}
+
+static void test_nat_basic0(void)
+{
+	int err;
+
+	err = __connman_nat_enable("bridge", "192.168.2.1", 24);
+	g_assert(err == 0);
+
+	/* test that table is empty */
+	err = __connman_iptables_command("-t nat -C POSTROUTING "
+					"-s 192.168.2.1/24 -o eth0 -j MASQUERADE");
+	g_assert(err != 0);
+
+	__connman_nat_disable("bridge");
+}
+
+static void test_nat_basic1(void)
+{
+	struct connman_service *service;
+	int err;
+
+	service = g_try_new0(struct connman_service, 1);
+	g_assert(service);
+
+	nat_notifier->default_changed(service);
+
+	err = __connman_nat_enable("bridge", "192.168.2.1", 24);
+	g_assert(err == 0);
+
+	/* test that table is not empty */
+	err = __connman_iptables_command("-t nat -C POSTROUTING "
+					"-s 192.168.2.1/24 -o eth0 -j MASQUERADE");
+	g_assert(err == 0);
+
+	__connman_nat_disable("bridge");
+
+	/* test that table is empty again */
+	err = __connman_iptables_command("-t nat -C POSTROUTING "
+					"-s 192.168.2.1/24 -o eth0 -j MASQUERADE");
+	g_assert(err != 0);
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+
+	g_test_init(&argc, &argv, NULL);
+
+	__connman_log_init(argv[0], "*", FALSE);
+	__connman_iptables_init();
+	__connman_nat_init();
+
+	g_test_add_func("/basic0", test_nat_basic0);
+	g_test_add_func("/basic1", test_nat_basic1);
+
+	err = g_test_run();
+
+	__connman_nat_cleanup();
+	__connman_iptables_cleanup();
+	__connman_log_cleanup();
+
+	return err;
+}