1 /*
2 * Copyright (C) 2019, 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 #undef NAN
22 #include "wifi_iface_util.h"
23
24 #include "mock_interface_tool.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(
35 const std::array<uint8_t, 6>& mac_address) {
36 uint8_t first_byte = mac_address[0];
37 return (first_byte & 0x3) == kValidUnicastLocallyAssignedMacAddressMask;
38 }
39 } // namespace
40
41 namespace android {
42 namespace hardware {
43 namespace wifi {
44 namespace V1_3 {
45 namespace implementation {
46 namespace iface_util {
47 class WifiIfaceUtilTest : public Test {
48 protected:
49 std::shared_ptr<NiceMock<wifi_system::MockInterfaceTool>> iface_tool_{
50 new NiceMock<wifi_system::MockInterfaceTool>};
51 WifiIfaceUtil* iface_util_ = new WifiIfaceUtil(iface_tool_);
52 };
53
TEST_F(WifiIfaceUtilTest,GetOrCreateRandomMacAddress)54 TEST_F(WifiIfaceUtilTest, GetOrCreateRandomMacAddress) {
55 auto mac_address = iface_util_->getOrCreateRandomMacAddress();
56 ASSERT_TRUE(isValidUnicastLocallyAssignedMacAddress(mac_address));
57
58 // All further calls should return the same MAC address.
59 ASSERT_EQ(mac_address, iface_util_->getOrCreateRandomMacAddress());
60 ASSERT_EQ(mac_address, iface_util_->getOrCreateRandomMacAddress());
61 }
62
TEST_F(WifiIfaceUtilTest,IfaceEventHandlers_SetMacAddress)63 TEST_F(WifiIfaceUtilTest, IfaceEventHandlers_SetMacAddress) {
64 std::array<uint8_t, 6> mac_address = {};
65 std::copy(std::begin(kMacAddress), std::end(kMacAddress),
66 std::begin(mac_address));
67 EXPECT_CALL(*iface_tool_, SetMacAddress(testing::_, testing::_))
68 .WillRepeatedly(testing::Return(true));
69 EXPECT_CALL(*iface_tool_, SetUpState(testing::_, testing::_))
70 .WillRepeatedly(testing::Return(true));
71
72 // Register for iface state toggle events.
73 bool callback_invoked = false;
74 iface_util::IfaceEventHandlers event_handlers = {};
75 event_handlers.on_state_toggle_off_on =
76 [&callback_invoked](const std::string& /* iface_name */) {
77 callback_invoked = true;
78 };
79 iface_util_->registerIfaceEventHandlers(kIfaceName, event_handlers);
80 // Invoke setMacAddress and ensure that the cb is invoked.
81 ASSERT_TRUE(iface_util_->setMacAddress(kIfaceName, mac_address));
82 ASSERT_TRUE(callback_invoked);
83
84 // Unregister for iface state toggle events.
85 callback_invoked = false;
86 iface_util_->unregisterIfaceEventHandlers(kIfaceName);
87 // Invoke setMacAddress and ensure that the cb is not invoked.
88 ASSERT_TRUE(iface_util_->setMacAddress(kIfaceName, mac_address));
89 ASSERT_FALSE(callback_invoked);
90 }
91 } // namespace iface_util
92 } // namespace implementation
93 } // namespace V1_3
94 } // namespace wifi
95 } // namespace hardware
96 } // namespace android
97