1 /*
2 * Copyright (C) 2020 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 <BinderFuzzFunctions.h>
18 #include <IBinderFuzzFunctions.h>
19 #include <commonFuzzHelpers.h>
20 #include <fuzzer/FuzzedDataProvider.h>
21
22 #include <binder/Binder.h>
23
24 namespace android {
25
26 // Fuzzer entry point.
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)27 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
28 FuzzedDataProvider fdp(data, size);
29 sp<BBinder> bbinder = new BBinder();
30
31 // To prevent memory from running out from calling too many add item operations.
32 const uint32_t MAX_RUNS = 2048;
33 uint32_t count = 0;
34
35 while (fdp.remaining_bytes() > 0 && count++ < MAX_RUNS) {
36 if (fdp.ConsumeBool()) {
37 callArbitraryFunction(&fdp, gBBinderOperations, bbinder);
38 } else {
39 callArbitraryFunction(&fdp, gIBinderOperations,
40 reinterpret_cast<IBinder *>(bbinder.get()));
41 }
42 }
43
44 return 0;
45 }
46 } // namespace android
47