1 /*
2 * Copyright (c) 2023 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 "timeproxytimer_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20 #include <string_ex.h>
21
22 #include "time_service_client.h"
23
24 using namespace OHOS::MiscServices;
25
26 namespace OHOS {
27 constexpr size_t U32_AT_SIZE = 4;
28
29
FuzzTimeProxyTimer(const uint8_t * rawData,size_t size)30 bool FuzzTimeProxyTimer(const uint8_t *rawData, size_t size)
31 {
32 int32_t uid = static_cast<int32_t>(*rawData);
33 std::set<int> pidList;
34 pidList.insert(uid);
35 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, true, true);
36 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, true, false);
37 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, false, false);
38 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, false, true);
39
40 return true;
41 }
42
FuzzTimeAdjustTimer(const uint8_t * rawData,size_t size)43 bool FuzzTimeAdjustTimer(const uint8_t *rawData, size_t size)
44 {
45 size_t interval = static_cast<size_t>(*rawData);
46 TimeServiceClient::GetInstance()->AdjustTimer(true, interval, 0);
47 TimeServiceClient::GetInstance()->AdjustTimer(false, 0, 0);
48 return true;
49 }
50
FuzzTimeSetTimerExemption(const uint8_t * rawData,size_t size)51 bool FuzzTimeSetTimerExemption(const uint8_t *rawData, size_t size)
52 {
53 std::string name(reinterpret_cast<const char *>(rawData), size);
54 std::unordered_set<std::string> nameArr{name};
55 TimeServiceClient::GetInstance()->SetTimerExemption(nameArr, false);
56 TimeServiceClient::GetInstance()->SetTimerExemption(nameArr, true);
57 return true;
58 }
59
60 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)61 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
62 {
63 /* Run your code on data */
64 if (data == nullptr) {
65 return 0;
66 }
67
68 if (size < OHOS::U32_AT_SIZE) {
69 return 0;
70 }
71
72 OHOS::FuzzTimeProxyTimer(data, size);
73 OHOS::FuzzTimeAdjustTimer(data, size);
74 OHOS::FuzzTimeSetTimerExemption(data, size);
75 return 0;
76 }
77 }