1 /*
2 * Copyright (c) 2022-2024 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
16 #include <cstddef>
17 #include <cstdint>
18 #include <string>
19 #include <fuzzer/FuzzedDataProvider.h>
20
21 #include "dm_constants.h"
22 #include "device_manager_impl.h"
23 #include "device_manager.h"
24 #include "device_manager_callback.h"
25 #include "un_authenticate_device_fuzzer.h"
26
27 namespace OHOS {
28 namespace DistributedHardware {
UnAuthenticateDeviceFuzzTest(const uint8_t * data,size_t size)29 void UnAuthenticateDeviceFuzzTest(const uint8_t* data, size_t size)
30 {
31 if ((data == nullptr) || (size < (sizeof(uint16_t) + (sizeof(int32_t) + sizeof(int32_t))) ||
32 (size > DM_MAX_DEVICE_ID_LEN))) {
33 return;
34 }
35
36 std::string bundleName(reinterpret_cast<const char*>(data), size);
37 std::string deviceId(reinterpret_cast<const char*>(data), size);
38 DmDeviceInfo deviceInfo;
39 if (memcpy_s(deviceInfo.deviceId, DM_MAX_DEVICE_ID_LEN, (reinterpret_cast<const char *>(data)), size) != DM_OK) {
40 return;
41 }
42 if (memcpy_s(deviceInfo.deviceName, DM_MAX_DEVICE_ID_LEN, (reinterpret_cast<const char *>(data)), size) != DM_OK) {
43 return;
44 }
45 if (memcpy_s(deviceInfo.networkId, DM_MAX_DEVICE_ID_LEN, (reinterpret_cast<const char *>(data)), size) != DM_OK) {
46 return;
47 }
48 FuzzedDataProvider fdp(data, size);
49 deviceInfo.deviceTypeId = fdp.ConsumeIntegral<uint16_t>();
50 deviceInfo.range = fdp.ConsumeIntegral<int32_t>();
51 deviceInfo.networkType = fdp.ConsumeIntegral<int32_t>();
52 std::string extraData(reinterpret_cast<const char*>(data), size);
53 deviceInfo.extraData = extraData;
54 deviceInfo.authForm = *(reinterpret_cast<const DmAuthForm*>(data));
55
56 DeviceManager::GetInstance().UnAuthenticateDevice(bundleName, deviceInfo);
57 DeviceManager::GetInstance().UnBindDevice(bundleName, deviceId);
58 }
59 }
60 }
61
62 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)63 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
64 {
65 /* Run your code on data */
66 OHOS::DistributedHardware::UnAuthenticateDeviceFuzzTest(data, size);
67 return 0;
68 }
69