1 /**
2  * Copyright (c) 2018, 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 #define LOG_TAG "TestUnsolService"
18 
19 #include <cinttypes>
20 #include <vector>
21 
22 #include <android-base/stringprintf.h>
23 #include <android-base/strings.h>
24 #include <log/log.h>
25 #include <utils/Errors.h>
26 #include <utils/String16.h>
27 
28 #include <binder/IPCThreadState.h>
29 #include <binder/IServiceManager.h>
30 #include "android/net/BnNetdUnsolicitedEventListener.h"
31 
32 #include "TestUnsolService.h"
33 
34 using android::base::StringPrintf;
35 
36 namespace android {
37 namespace net {
38 
start()39 TestUnsolService* TestUnsolService::start() {
40     IPCThreadState::self()->disableBackgroundScheduling(true);
41     sp<IServiceManager> sm(defaultServiceManager());
42 
43     auto service = new TestUnsolService();
44     const status_t ret = sm->addService(String16(getServiceName()), service, false,
45                                         IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT);
46     if (ret != android::OK) {
47         return nullptr;
48     }
49     sp<ProcessState> ps(ProcessState::self());
50     ps->startThreadPool();
51     ps->giveThreadPoolName();
52 
53     return service;
54 }
55 
56 namespace {
57 
containsSubstring(const std::vector<std::string> & vec,const std::string & subStr)58 bool containsSubstring(const std::vector<std::string>& vec, const std::string& subStr) {
59     return std::any_of(vec.begin(), vec.end(), [&subStr](const std::string& str) {
60         return (str.find(subStr) != std::string::npos);
61     });
62 }
63 
64 }  // namespace
65 
checkTarget(const std::string & ifName,uint32_t flag)66 void TestUnsolService::checkTarget(const std::string& ifName, uint32_t flag) {
67     if (containsSubstring(tarVec, ifName)) {
68         received_ |= flag;
69         maybeNotify();
70     };
71 }
72 
maybeNotify()73 void TestUnsolService::maybeNotify() {
74     // We only have test case for below event currently.
75     if (received_ == (InterfaceAddressUpdated | InterfaceAdded | InterfaceRemoved |
76                       InterfaceLinkStatusChanged | RouteChanged)) {
77         std::lock_guard lock(cv_mutex_);
78         cv_.notify_one();
79     }
80 }
81 
onInterfaceClassActivityChanged(bool isActive,int label,int64_t timestamp,int uid)82 binder::Status TestUnsolService::onInterfaceClassActivityChanged(bool isActive, int label,
83                                                                  int64_t timestamp, int uid) {
84     events_.push_back(StringPrintf("onInterfaceClassActivityChanged %d %d %" PRId64 "%d", isActive,
85                                    label, timestamp, uid));
86     return binder::Status::ok();
87 }
88 
onQuotaLimitReached(const std::string & alertName,const std::string & ifName)89 binder::Status TestUnsolService::onQuotaLimitReached(const std::string& alertName,
90                                                      const std::string& ifName) {
91     events_.push_back(StringPrintf("onQuotaLimitReached %s %s", alertName.c_str(), ifName.c_str()));
92     return binder::Status::ok();
93 }
94 
onInterfaceDnsServerInfo(const std::string & ifName,int64_t lifetime,const std::vector<std::string> & servers)95 binder::Status TestUnsolService::onInterfaceDnsServerInfo(const std::string& ifName,
96                                                           int64_t lifetime,
97                                                           const std::vector<std::string>& servers) {
98     events_.push_back(StringPrintf("onInterfaceDnsServerInfo %s %" PRId64 "%s", ifName.c_str(),
99                                    lifetime, base::Join(servers, ", ").c_str()));
100     return binder::Status::ok();
101 }
102 
onInterfaceAddressUpdated(const std::string &,const std::string & ifName,int,int)103 binder::Status TestUnsolService::onInterfaceAddressUpdated(const std::string&,
104                                                            const std::string& ifName, int, int) {
105     checkTarget(ifName, InterfaceAddressUpdated);
106     return binder::Status::ok();
107 }
108 
onInterfaceAddressRemoved(const std::string & addr,const std::string & ifName,int flags,int scope)109 binder::Status TestUnsolService::onInterfaceAddressRemoved(const std::string& addr,
110                                                            const std::string& ifName, int flags,
111                                                            int scope) {
112     events_.push_back(StringPrintf("onInterfaceAddressRemoved %s %s %d %d", addr.c_str(),
113                                    ifName.c_str(), flags, scope));
114     return binder::Status::ok();
115 }
116 
onInterfaceAdded(const std::string & ifName)117 binder::Status TestUnsolService::onInterfaceAdded(const std::string& ifName) {
118     checkTarget(ifName, InterfaceAdded);
119     return binder::Status::ok();
120 }
121 
onInterfaceRemoved(const std::string & ifName)122 binder::Status TestUnsolService::onInterfaceRemoved(const std::string& ifName) {
123     checkTarget(ifName, InterfaceRemoved);
124     return binder::Status::ok();
125 }
126 
onInterfaceChanged(const std::string & ifName,bool status)127 binder::Status TestUnsolService::onInterfaceChanged(const std::string& ifName, bool status) {
128     events_.push_back(StringPrintf("onInterfaceChanged %s %d", ifName.c_str(), status));
129     return binder::Status::ok();
130 }
131 
onInterfaceLinkStateChanged(const std::string & ifName,bool)132 binder::Status TestUnsolService::onInterfaceLinkStateChanged(const std::string& ifName, bool) {
133     checkTarget(ifName, InterfaceLinkStatusChanged);
134     return binder::Status::ok();
135 }
136 
onRouteChanged(bool,const std::string &,const std::string &,const std::string & ifName)137 binder::Status TestUnsolService::onRouteChanged(bool, const std::string&, const std::string&,
138                                                 const std::string& ifName) {
139     checkTarget(ifName, RouteChanged);
140     return binder::Status::ok();
141 }
142 
onStrictCleartextDetected(int uid,const std::string & hex)143 binder::Status TestUnsolService::onStrictCleartextDetected(int uid, const std::string& hex) {
144     events_.push_back(StringPrintf("onStrictCleartextDetected %d %s", uid, hex.c_str()));
145     return binder::Status::ok();
146 }
147 
148 }  // namespace net
149 }  // namespace android