1 /*
2  * Copyright (C) 2021 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 // Integration test for servicedispatcher + adb forward. Requires ADB.
18 
19 #include <stdlib.h>
20 
21 #include <vector>
22 
23 #include <android-base/parsebool.h>
24 #include <android-base/result-gmock.h>
25 #include <android-base/strings.h>
26 #include <gmock/gmock.h>
27 #include <gtest/gtest.h>
28 
29 #include <binder/IServiceManager.h>
30 #include <binder/RpcSession.h>
31 
32 #include "../UtilsHost.h"
33 
34 using ::android::setDefaultServiceManager;
35 using ::android::base::EndsWith;
36 using ::android::base::Join;
37 using ::android::base::ParseBool;
38 using ::android::base::ParseBoolResult;
39 using ::android::base::Split;
40 using ::android::base::StartsWith;
41 using ::android::base::StringReplace;
42 using ::android::base::Trim;
43 using ::android::base::testing::Ok;
44 using ::std::chrono_literals::operator""ms;
45 using ::std::string_literals::operator""s;
46 using ::testing::AllOf;
47 using ::testing::Contains;
48 using ::testing::ContainsRegex;
49 using ::testing::ExplainMatchResult;
50 using ::testing::InitGoogleMock;
51 
52 namespace android {
53 
54 namespace {
55 
56 constexpr const char* kServiceBinary = "/data/local/tmp/binderHostDeviceTest-service";
57 constexpr const char* kServiceName = "binderHostDeviceTestService";
58 constexpr const char* kDescriptor = "android.binderHostDeviceTestService";
59 
60 // e.g. EXPECT_THAT(expr, StatusEq(OK)) << "additional message";
61 MATCHER_P(StatusEq, expected, (negation ? "not " : "") + statusToString(expected)) {
62     *result_listener << statusToString(arg);
63     return expected == arg;
64 }
65 
initHostRpcServiceManagerOnce()66 void initHostRpcServiceManagerOnce() {
67     static std::once_flag gSmOnce;
68     std::call_once(gSmOnce, [] {
69         setDefaultServiceManager(createRpcDelegateServiceManager({.maxOutgoingConnections = 1}));
70     });
71 }
72 
73 // Test for host service manager.
74 class HostDeviceTest : public ::testing::Test {
75 public:
SetUp()76     void SetUp() override {
77         auto debuggableResult = execute(Split("adb shell getprop ro.debuggable", " "), nullptr);
78         ASSERT_TRUE(debuggableResult.has_value());
79         ASSERT_EQ(0, debuggableResult->exitCode) << *debuggableResult;
80         auto debuggableBool = ParseBool(Trim(debuggableResult->stdoutStr));
81         ASSERT_NE(ParseBoolResult::kError, debuggableBool) << Trim(debuggableResult->stdoutStr);
82         if (debuggableBool == ParseBoolResult::kFalse) {
83             GTEST_SKIP() << "ro.debuggable=" << Trim(debuggableResult->stdoutStr);
84         }
85 
86         auto lsResult = execute(Split("adb shell which servicedispatcher", " "), nullptr);
87         ASSERT_TRUE(lsResult.has_value());
88         if (lsResult->exitCode != 0) {
89             GTEST_SKIP() << "b/182914638: until feature is fully enabled, skip test on devices "
90                             "without servicedispatcher";
91         }
92 
93         initHostRpcServiceManagerOnce();
94         ASSERT_NE(nullptr, defaultServiceManager()) << "No defaultServiceManager() over RPC";
95 
96         auto service = execute({"adb", "shell", kServiceBinary, kServiceName, kDescriptor},
97                                &CommandResult::stdoutEndsWithNewLine);
98         ASSERT_TRUE(service.has_value());
99         ASSERT_EQ(std::nullopt, service->exitCode) << *service;
100         mService = std::move(*service);
101     }
TearDown()102     void TearDown() override { mService.reset(); }
103 
get(unsigned int hostPort)104     [[nodiscard]] static sp<IBinder> get(unsigned int hostPort) {
105         auto rpcSession = RpcSession::make();
106         if (status_t status = rpcSession->setupInetClient("127.0.0.1", hostPort); status != OK) {
107             ADD_FAILURE() << "Failed to setupInetClient on " << hostPort << ": "
108                           << statusToString(status);
109             return nullptr;
110         }
111         return rpcSession->getRootObject();
112     }
113 
114 private:
115     std::optional<CommandResult> mService;
116 };
117 
TEST_F(HostDeviceTest,List)118 TEST_F(HostDeviceTest, List) {
119     auto sm = defaultServiceManager();
120 
121     auto services = sm->listServices();
122     ASSERT_THAT(services, Contains(String16(kServiceName)));
123 }
124 
TEST_F(HostDeviceTest,CheckService)125 TEST_F(HostDeviceTest, CheckService) {
126     auto sm = defaultServiceManager();
127 
128     auto rpcBinder = sm->checkService(String16(kServiceName));
129     ASSERT_NE(nullptr, rpcBinder);
130 
131     EXPECT_THAT(rpcBinder->pingBinder(), StatusEq(OK));
132     EXPECT_EQ(String16(kDescriptor), rpcBinder->getInterfaceDescriptor());
133 }
134 
TEST_F(HostDeviceTest,GetService)135 TEST_F(HostDeviceTest, GetService) {
136     auto sm = defaultServiceManager();
137 
138 #pragma clang diagnostic push
139 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
140     auto rpcBinder = sm->getService(String16(kServiceName));
141 #pragma clang diagnostic pop
142     ASSERT_NE(nullptr, rpcBinder);
143 
144     EXPECT_THAT(rpcBinder->pingBinder(), StatusEq(OK));
145     EXPECT_EQ(String16(kDescriptor), rpcBinder->getInterfaceDescriptor());
146 }
147 
TEST_F(HostDeviceTest,WaitForService)148 TEST_F(HostDeviceTest, WaitForService) {
149     auto sm = defaultServiceManager();
150 
151     auto rpcBinder = sm->waitForService(String16(kServiceName));
152     ASSERT_NE(nullptr, rpcBinder);
153 
154     EXPECT_THAT(rpcBinder->pingBinder(), StatusEq(OK));
155     EXPECT_EQ(String16(kDescriptor), rpcBinder->getInterfaceDescriptor());
156 }
157 
TEST_F(HostDeviceTest,TenClients)158 TEST_F(HostDeviceTest, TenClients) {
159     auto sm = defaultServiceManager();
160 
161     auto threadFn = [&] {
162         auto rpcBinder = sm->checkService(String16(kServiceName));
163         ASSERT_NE(nullptr, rpcBinder);
164 
165         EXPECT_THAT(rpcBinder->pingBinder(), StatusEq(OK));
166         EXPECT_EQ(String16(kDescriptor), rpcBinder->getInterfaceDescriptor());
167     };
168 
169     std::vector<std::thread> threads;
170     for (size_t i = 0; i < 10; ++i) threads.emplace_back(threadFn);
171     for (auto& thread : threads) thread.join();
172 }
173 
174 } // namespace
175 
176 } // namespace android
177