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/*
* Copyright 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* FirewallControllerTest.cpp - unit tests for FirewallController.cpp
*/
#include <string>
#include <vector>
#include <stdio.h>
#include <gtest/gtest.h>
#include "FirewallController.h"
#include "IptablesBaseTest.h"
namespace android {
namespace net {
class FirewallControllerTest : public IptablesBaseTest {
protected:
FirewallControllerTest() {
FirewallController::execIptablesRestore = fakeExecIptablesRestore;
}
FirewallController mFw;
};
TEST_F(FirewallControllerTest, TestFirewall) {
std::vector<std::string> enableCommands = {
"*filter\n"
"-A fw_INPUT -j DROP\n"
"-A fw_OUTPUT -j REJECT\n"
"-A fw_FORWARD -j REJECT\n"
"COMMIT\n"};
std::vector<std::string> disableCommands = {
"*filter\n"
":fw_INPUT -\n"
":fw_OUTPUT -\n"
":fw_FORWARD -\n"
"-6 -A fw_OUTPUT ! -o lo -s ::1 -j DROP\n"
"COMMIT\n"};
std::vector<std::string> noCommands = {};
EXPECT_EQ(0, mFw.resetFirewall());
expectIptablesRestoreCommands(disableCommands);
EXPECT_EQ(0, mFw.resetFirewall());
expectIptablesRestoreCommands(disableCommands);
EXPECT_EQ(0, mFw.setFirewallType(DENYLIST));
expectIptablesRestoreCommands(disableCommands);
EXPECT_EQ(0, mFw.setFirewallType(DENYLIST));
expectIptablesRestoreCommands(noCommands);
std::vector<std::string> disableEnableCommands;
disableEnableCommands.insert(
disableEnableCommands.end(), disableCommands.begin(), disableCommands.end());
disableEnableCommands.insert(
disableEnableCommands.end(), enableCommands.begin(), enableCommands.end());
EXPECT_EQ(0, mFw.setFirewallType(ALLOWLIST));
expectIptablesRestoreCommands(disableEnableCommands);
std::vector<std::string> ifaceCommands = {
"*filter\n"
"-I fw_INPUT -i rmnet_data0 -j RETURN\n"
"-I fw_OUTPUT -o rmnet_data0 -j RETURN\n"
"COMMIT\n"
};
EXPECT_EQ(0, mFw.setInterfaceRule("rmnet_data0", ALLOW));
expectIptablesRestoreCommands(ifaceCommands);
EXPECT_EQ(0, mFw.setInterfaceRule("rmnet_data0", ALLOW));
expectIptablesRestoreCommands(noCommands);
ifaceCommands = {
"*filter\n"
"-D fw_INPUT -i rmnet_data0 -j RETURN\n"
"-D fw_OUTPUT -o rmnet_data0 -j RETURN\n"
"COMMIT\n"
};
EXPECT_EQ(0, mFw.setInterfaceRule("rmnet_data0", DENY));
expectIptablesRestoreCommands(ifaceCommands);
EXPECT_EQ(0, mFw.setInterfaceRule("rmnet_data0", DENY));
expectIptablesRestoreCommands(noCommands);
EXPECT_EQ(0, mFw.setFirewallType(ALLOWLIST));
expectIptablesRestoreCommands(noCommands);
EXPECT_EQ(0, mFw.resetFirewall());
expectIptablesRestoreCommands(disableCommands);
// TODO: calling resetFirewall and then setFirewallType(ALLOWLIST) does
// nothing. This seems like a clear bug.
EXPECT_EQ(0, mFw.setFirewallType(ALLOWLIST));
expectIptablesRestoreCommands(noCommands);
}
} // namespace net
} // namespace android
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