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 #include <fuzzbinder/libbinder_ndk_driver.h>
17 #include <fuzzer/FuzzedDataProvider.h>
18
19 #include <fakeservicemanager/FakeServiceManager.h>
20 #include <android-base/logging.h>
21 #include <android/binder_interface_utils.h>
22 #include <fuzzbinder/random_binder.h>
23 #include <sensorserviceaidl/SensorManagerAidl.h>
24
25 using android::fuzzService;
26 using android::frameworks::sensorservice::implementation::SensorManagerAidl;
27 using ndk::SharedRefBase;
28
29 [[clang::no_destroy]] static std::once_flag gSmOnce;
30
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)31 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
32 static android::sp<android::FakeServiceManager> fakeServiceManager = new android::FakeServiceManager();
33 std::call_once(gSmOnce, [&] { setDefaultServiceManager(fakeServiceManager); });
34 fakeServiceManager->clear();
35
36 FuzzedDataProvider fdp(data, size);
37 android::sp<android::IBinder> binder = android::getRandomBinder(&fdp);
38 if (binder == nullptr) {
39 // Nothing to do if we get a null binder. It will cause SensorManager to
40 // hang while trying to get sensorservice.
41 return 0;
42 }
43
44 CHECK(android::NO_ERROR == fakeServiceManager->addService(android::String16("sensorservice"),
45 binder));
46
47 std::shared_ptr<SensorManagerAidl> sensorService =
48 ndk::SharedRefBase::make<SensorManagerAidl>(nullptr);
49
50 fuzzService(sensorService->asBinder().get(), std::move(fdp));
51
52 return 0;
53 }
54