1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #include "fuzzer/FuzzedDataProvider.h"
16 #include "scancallbackproxy_fuzzer.h"
17 #include "scan_callback_proxy.h"
18
19 namespace OHOS {
20 namespace Scan {
21 constexpr int MAX_SET_NUMBER = 100;
22 constexpr size_t FOO_MAX_LEN = 1024;
23 constexpr size_t U32_AT_SIZE = 4;
24
TestUsbOnCallback(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)25 void TestUsbOnCallback(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
26 {
27 uint32_t state = dataProvider->ConsumeIntegralInRange<uint32_t>(0, MAX_SET_NUMBER);
28 ScanDeviceInfo info;
29 sptr<IRemoteObject> impl;
30 ScanCallbackProxy scanCallbackProxy(impl);
31 scanCallbackProxy.OnCallback(state, info);
32 }
33
TestOnCallbackSync(const uint8_t * data,size_t size,FuzzedDataProvider * dataProvider)34 void TestOnCallbackSync(const uint8_t* data, size_t size, FuzzedDataProvider* dataProvider)
35 {
36 uint32_t state = dataProvider->ConsumeIntegralInRange<uint32_t>(0, MAX_SET_NUMBER);
37 ScanDeviceInfoSync info;
38 sptr<IRemoteObject> impl;
39 ScanCallbackProxy scanCallbackProxy(impl);
40 scanCallbackProxy.OnCallbackSync(state, info);
41 }
42
43 }
44 }
45
46 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)47 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
48 {
49 if (data == nullptr) {
50 return 0;
51 }
52
53 if (size < OHOS::Scan::U32_AT_SIZE || size > OHOS::Scan::FOO_MAX_LEN) {
54 return 0;
55 }
56 FuzzedDataProvider dataProvider(data, size);
57 OHOS::Scan::TestUsbOnCallback(data, size, &dataProvider);
58 OHOS::Scan::TestOnCallbackSync(data, size, &dataProvider);
59 return 0;
60 }
61
62