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//
// Copyright (C) 2012 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.
//
#include "update_engine/connection_manager.h"
#include <set>
#include <string>
#include <base/logging.h>
#include <brillo/any.h>
#include <brillo/make_unique_ptr.h>
#include <brillo/message_loops/fake_message_loop.h>
#include <brillo/variant_dictionary.h>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <shill/dbus-constants.h>
#include <shill/dbus-proxies.h>
#include <shill/dbus-proxy-mocks.h>
#include "update_engine/common/test_utils.h"
#include "update_engine/fake_shill_proxy.h"
#include "update_engine/fake_system_state.h"
using chromeos_update_engine::connection_utils::StringForConnectionType;
using org::chromium::flimflam::ManagerProxyMock;
using org::chromium::flimflam::ServiceProxyMock;
using std::set;
using std::string;
using testing::Return;
using testing::SetArgPointee;
using testing::_;
namespace chromeos_update_engine {
class ConnectionManagerTest : public ::testing::Test {
public:
ConnectionManagerTest() : fake_shill_proxy_(new FakeShillProxy()) {}
void SetUp() override {
loop_.SetAsCurrent();
fake_system_state_.set_connection_manager(&cmut_);
}
void TearDown() override { EXPECT_FALSE(loop_.PendingTasks()); }
protected:
// Sets the default_service object path in the response from the
// ManagerProxyMock instance.
void SetManagerReply(const char* default_service, bool reply_succeeds);
// Sets the |service_type|, |physical_technology| and |service_tethering|
// properties in the mocked service |service_path|. If any of the three
// const char* is a nullptr, the corresponding property will not be included
// in the response.
void SetServiceReply(const string& service_path,
const char* service_type,
const char* physical_technology,
const char* service_tethering);
void TestWithServiceType(
const char* service_type,
const char* physical_technology,
ConnectionType expected_type);
void TestWithServiceTethering(
const char* service_tethering,
ConnectionTethering expected_tethering);
brillo::FakeMessageLoop loop_{nullptr};
FakeSystemState fake_system_state_;
FakeShillProxy* fake_shill_proxy_;
// ConnectionManager under test.
ConnectionManager cmut_{fake_shill_proxy_, &fake_system_state_};
};
void ConnectionManagerTest::SetManagerReply(const char* default_service,
bool reply_succeeds) {
ManagerProxyMock* manager_proxy_mock = fake_shill_proxy_->GetManagerProxy();
if (!reply_succeeds) {
EXPECT_CALL(*manager_proxy_mock, GetProperties(_, _, _))
.WillOnce(Return(false));
return;
}
// Create a dictionary of properties and optionally include the default
// service.
brillo::VariantDictionary reply_dict;
reply_dict["SomeOtherProperty"] = 0xC0FFEE;
if (default_service) {
reply_dict[shill::kDefaultServiceProperty] =
dbus::ObjectPath(default_service);
}
EXPECT_CALL(*manager_proxy_mock, GetProperties(_, _, _))
.WillOnce(DoAll(SetArgPointee<0>(reply_dict), Return(true)));
}
void ConnectionManagerTest::SetServiceReply(const string& service_path,
const char* service_type,
const char* physical_technology,
const char* service_tethering) {
brillo::VariantDictionary reply_dict;
reply_dict["SomeOtherProperty"] = 0xC0FFEE;
if (service_type)
reply_dict[shill::kTypeProperty] = string(service_type);
if (physical_technology) {
reply_dict[shill::kPhysicalTechnologyProperty] =
string(physical_technology);
}
if (service_tethering)
reply_dict[shill::kTetheringProperty] = string(service_tethering);
std::unique_ptr<ServiceProxyMock> service_proxy_mock(new ServiceProxyMock());
// Plumb return value into mock object.
EXPECT_CALL(*service_proxy_mock.get(), GetProperties(_, _, _))
.WillOnce(DoAll(SetArgPointee<0>(reply_dict), Return(true)));
fake_shill_proxy_->SetServiceForPath(dbus::ObjectPath(service_path),
std::move(service_proxy_mock));
}
void ConnectionManagerTest::TestWithServiceType(
const char* service_type,
const char* physical_technology,
ConnectionType expected_type) {
SetManagerReply("/service/guest/network", true);
SetServiceReply("/service/guest/network",
service_type,
physical_technology,
shill::kTetheringNotDetectedState);
ConnectionType type;
ConnectionTethering tethering;
EXPECT_TRUE(cmut_.GetConnectionProperties(&type, &tethering));
EXPECT_EQ(expected_type, type);
testing::Mock::VerifyAndClearExpectations(
fake_shill_proxy_->GetManagerProxy());
}
void ConnectionManagerTest::TestWithServiceTethering(
const char* service_tethering,
ConnectionTethering expected_tethering) {
SetManagerReply("/service/guest/network", true);
SetServiceReply(
"/service/guest/network", shill::kTypeWifi, nullptr, service_tethering);
ConnectionType type;
ConnectionTethering tethering;
EXPECT_TRUE(cmut_.GetConnectionProperties(&type, &tethering));
EXPECT_EQ(expected_tethering, tethering);
testing::Mock::VerifyAndClearExpectations(
fake_shill_proxy_->GetManagerProxy());
}
TEST_F(ConnectionManagerTest, SimpleTest) {
TestWithServiceType(shill::kTypeEthernet, nullptr, ConnectionType::kEthernet);
TestWithServiceType(shill::kTypeWifi, nullptr, ConnectionType::kWifi);
TestWithServiceType(shill::kTypeWimax, nullptr, ConnectionType::kWimax);
TestWithServiceType(
shill::kTypeBluetooth, nullptr, ConnectionType::kBluetooth);
TestWithServiceType(shill::kTypeCellular, nullptr, ConnectionType::kCellular);
}
TEST_F(ConnectionManagerTest, PhysicalTechnologyTest) {
TestWithServiceType(shill::kTypeVPN, nullptr, ConnectionType::kUnknown);
TestWithServiceType(
shill::kTypeVPN, shill::kTypeVPN, ConnectionType::kUnknown);
TestWithServiceType(shill::kTypeVPN, shill::kTypeWifi, ConnectionType::kWifi);
TestWithServiceType(
shill::kTypeVPN, shill::kTypeWimax, ConnectionType::kWimax);
}
TEST_F(ConnectionManagerTest, TetheringTest) {
TestWithServiceTethering(shill::kTetheringConfirmedState,
ConnectionTethering::kConfirmed);
TestWithServiceTethering(shill::kTetheringNotDetectedState,
ConnectionTethering::kNotDetected);
TestWithServiceTethering(shill::kTetheringSuspectedState,
ConnectionTethering::kSuspected);
TestWithServiceTethering("I'm not a valid property value =)",
ConnectionTethering::kUnknown);
}
TEST_F(ConnectionManagerTest, UnknownTest) {
TestWithServiceType("foo", nullptr, ConnectionType::kUnknown);
}
TEST_F(ConnectionManagerTest, AllowUpdatesOverEthernetTest) {
// Updates over Ethernet are allowed even if there's no policy.
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kEthernet,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, AllowUpdatesOverWifiTest) {
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWifi,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, AllowUpdatesOverWimaxTest) {
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWimax,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, BlockUpdatesOverBluetoothTest) {
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kBluetooth,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, AllowUpdatesOnlyOver3GPerPolicyTest) {
policy::MockDevicePolicy allow_3g_policy;
fake_system_state_.set_device_policy(&allow_3g_policy);
// This test tests cellular (3G) being the only connection type being allowed.
set<string> allowed_set;
allowed_set.insert(StringForConnectionType(ConnectionType::kCellular));
EXPECT_CALL(allow_3g_policy, GetAllowedConnectionTypesForUpdate(_))
.Times(1)
.WillOnce(DoAll(SetArgPointee<0>(allowed_set), Return(true)));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, AllowUpdatesOver3GAndOtherTypesPerPolicyTest) {
policy::MockDevicePolicy allow_3g_policy;
fake_system_state_.set_device_policy(&allow_3g_policy);
// This test tests multiple connection types being allowed, with
// 3G one among them. Only Cellular is currently enforced by the policy
// setting, the others are ignored (see Bluetooth for example).
set<string> allowed_set;
allowed_set.insert(StringForConnectionType(ConnectionType::kCellular));
allowed_set.insert(StringForConnectionType(ConnectionType::kBluetooth));
EXPECT_CALL(allow_3g_policy, GetAllowedConnectionTypesForUpdate(_))
.Times(3)
.WillRepeatedly(DoAll(SetArgPointee<0>(allowed_set), Return(true)));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kEthernet,
ConnectionTethering::kUnknown));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kEthernet,
ConnectionTethering::kNotDetected));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWifi,
ConnectionTethering::kUnknown));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWimax,
ConnectionTethering::kUnknown));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kBluetooth,
ConnectionTethering::kUnknown));
// Tethered networks are treated in the same way as Cellular networks and
// thus allowed.
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kEthernet,
ConnectionTethering::kConfirmed));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWifi,
ConnectionTethering::kConfirmed));
}
TEST_F(ConnectionManagerTest, BlockUpdatesOverCellularByDefaultTest) {
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, BlockUpdatesOverTetheredNetworkByDefaultTest) {
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kWifi,
ConnectionTethering::kConfirmed));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kEthernet,
ConnectionTethering::kConfirmed));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kWifi,
ConnectionTethering::kSuspected));
}
TEST_F(ConnectionManagerTest, BlockUpdatesOver3GPerPolicyTest) {
policy::MockDevicePolicy block_3g_policy;
fake_system_state_.set_device_policy(&block_3g_policy);
// Test that updates for 3G are blocked while updates are allowed
// over several other types.
set<string> allowed_set;
allowed_set.insert(StringForConnectionType(ConnectionType::kEthernet));
allowed_set.insert(StringForConnectionType(ConnectionType::kWifi));
allowed_set.insert(StringForConnectionType(ConnectionType::kWimax));
EXPECT_CALL(block_3g_policy, GetAllowedConnectionTypesForUpdate(_))
.Times(1)
.WillOnce(DoAll(SetArgPointee<0>(allowed_set), Return(true)));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, BlockUpdatesOver3GIfErrorInPolicyFetchTest) {
policy::MockDevicePolicy allow_3g_policy;
fake_system_state_.set_device_policy(&allow_3g_policy);
set<string> allowed_set;
allowed_set.insert(StringForConnectionType(ConnectionType::kCellular));
// Return false for GetAllowedConnectionTypesForUpdate and see
// that updates are still blocked for 3G despite the value being in
// the string set above.
EXPECT_CALL(allow_3g_policy, GetAllowedConnectionTypesForUpdate(_))
.Times(1)
.WillOnce(DoAll(SetArgPointee<0>(allowed_set), Return(false)));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, UseUserPrefForUpdatesOverCellularIfNoPolicyTest) {
policy::MockDevicePolicy no_policy;
testing::NiceMock<MockPrefs>* prefs = fake_system_state_.mock_prefs();
fake_system_state_.set_device_policy(&no_policy);
// No setting enforced by the device policy, user prefs should be used.
EXPECT_CALL(no_policy, GetAllowedConnectionTypesForUpdate(_))
.Times(3)
.WillRepeatedly(Return(false));
// No user pref: block.
EXPECT_CALL(*prefs, Exists(kPrefsUpdateOverCellularPermission))
.Times(1)
.WillOnce(Return(false));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
// Allow per user pref.
EXPECT_CALL(*prefs, Exists(kPrefsUpdateOverCellularPermission))
.Times(1)
.WillOnce(Return(true));
EXPECT_CALL(*prefs, GetBoolean(kPrefsUpdateOverCellularPermission, _))
.Times(1)
.WillOnce(DoAll(SetArgPointee<1>(true), Return(true)));
EXPECT_TRUE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
// Block per user pref.
EXPECT_CALL(*prefs, Exists(kPrefsUpdateOverCellularPermission))
.Times(1)
.WillOnce(Return(true));
EXPECT_CALL(*prefs, GetBoolean(kPrefsUpdateOverCellularPermission, _))
.Times(1)
.WillOnce(DoAll(SetArgPointee<1>(false), Return(true)));
EXPECT_FALSE(cmut_.IsUpdateAllowedOver(ConnectionType::kCellular,
ConnectionTethering::kUnknown));
}
TEST_F(ConnectionManagerTest, StringForConnectionTypeTest) {
EXPECT_STREQ(shill::kTypeEthernet,
StringForConnectionType(ConnectionType::kEthernet));
EXPECT_STREQ(shill::kTypeWifi,
StringForConnectionType(ConnectionType::kWifi));
EXPECT_STREQ(shill::kTypeWimax,
StringForConnectionType(ConnectionType::kWimax));
EXPECT_STREQ(shill::kTypeBluetooth,
StringForConnectionType(ConnectionType::kBluetooth));
EXPECT_STREQ(shill::kTypeCellular,
StringForConnectionType(ConnectionType::kCellular));
EXPECT_STREQ("Unknown", StringForConnectionType(ConnectionType::kUnknown));
EXPECT_STREQ("Unknown",
StringForConnectionType(static_cast<ConnectionType>(999999)));
}
TEST_F(ConnectionManagerTest, MalformedServiceList) {
SetManagerReply("/service/guest/network", false);
ConnectionType type;
ConnectionTethering tethering;
EXPECT_FALSE(cmut_.GetConnectionProperties(&type, &tethering));
}
} // namespace chromeos_update_engine