1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <android-base/logging.h>
18 #include <android-base/macros.h>
19 #include <gmock/gmock.h>
20
21 #include "wifi_iface_util.h"
22
23 #include "mock_interface_tool.h"
24 #include "mock_wifi_legacy_hal.h"
25
26 using testing::NiceMock;
27 using testing::Test;
28
29 namespace {
30 constexpr uint8_t kValidUnicastLocallyAssignedMacAddressMask = 0x02;
31 constexpr uint8_t kMacAddress[] = {0x02, 0x12, 0x45, 0x56, 0xab, 0xcc};
32 constexpr char kIfaceName[] = "test-wlan0";
33
isValidUnicastLocallyAssignedMacAddress(const std::array<uint8_t,6> & mac_address)34 bool isValidUnicastLocallyAssignedMacAddress(const std::array<uint8_t, 6>& mac_address) {
35 uint8_t first_byte = mac_address[0];
36 return (first_byte & 0x3) == kValidUnicastLocallyAssignedMacAddressMask;
37 }
38 } // namespace
39
40 namespace aidl {
41 namespace android {
42 namespace hardware {
43 namespace wifi {
44 namespace iface_util {
45
46 class WifiIfaceUtilTest : public Test {
47 protected:
48 std::shared_ptr<NiceMock<::android::wifi_system::MockInterfaceTool>> iface_tool_{
49 new NiceMock<::android::wifi_system::MockInterfaceTool>};
50 legacy_hal::wifi_hal_fn fake_func_table_;
51 std::shared_ptr<NiceMock<legacy_hal::MockWifiLegacyHal>> legacy_hal_{
52 new NiceMock<legacy_hal::MockWifiLegacyHal>(iface_tool_, fake_func_table_, true)};
53 WifiIfaceUtil* iface_util_ = new WifiIfaceUtil(iface_tool_, legacy_hal_);
54 };
55
TEST_F(WifiIfaceUtilTest,GetOrCreateRandomMacAddress)56 TEST_F(WifiIfaceUtilTest, GetOrCreateRandomMacAddress) {
57 auto mac_address = iface_util_->getOrCreateRandomMacAddress();
58 ASSERT_TRUE(isValidUnicastLocallyAssignedMacAddress(mac_address));
59
60 // All further calls should return the same MAC address.
61 ASSERT_EQ(mac_address, iface_util_->getOrCreateRandomMacAddress());
62 ASSERT_EQ(mac_address, iface_util_->getOrCreateRandomMacAddress());
63 }
64
TEST_F(WifiIfaceUtilTest,IfaceEventHandlers_SetMacAddress)65 TEST_F(WifiIfaceUtilTest, IfaceEventHandlers_SetMacAddress) {
66 std::array<uint8_t, 6> mac_address = {};
67 std::copy(std::begin(kMacAddress), std::end(kMacAddress), std::begin(mac_address));
68 EXPECT_CALL(*iface_tool_, SetMacAddress(testing::_, testing::_))
69 .WillRepeatedly(testing::Return(true));
70 EXPECT_CALL(*iface_tool_, SetUpState(testing::_, testing::_))
71 .WillRepeatedly(testing::Return(true));
72
73 // Register for iface state toggle events.
74 bool callback_invoked = false;
75 iface_util::IfaceEventHandlers event_handlers = {};
76 event_handlers.on_state_toggle_off_on =
77 [&callback_invoked](const std::string& /* iface_name */) { callback_invoked = true; };
78 iface_util_->registerIfaceEventHandlers(kIfaceName, event_handlers);
79 // Invoke setMacAddress and ensure that the cb is invoked.
80 ASSERT_TRUE(iface_util_->setMacAddress(kIfaceName, mac_address));
81 ASSERT_TRUE(callback_invoked);
82
83 // Unregister for iface state toggle events.
84 callback_invoked = false;
85 iface_util_->unregisterIfaceEventHandlers(kIfaceName);
86 // Invoke setMacAddress and ensure that the cb is not invoked.
87 ASSERT_TRUE(iface_util_->setMacAddress(kIfaceName, mac_address));
88 ASSERT_FALSE(callback_invoked);
89 }
90 } // namespace iface_util
91 } // namespace wifi
92 } // namespace hardware
93 } // namespace android
94 } // namespace aidl
95