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 constexpr size_t ADJUST_TIMER_INTERVAL = 5;
29
30
FuzzTimeProxyTimer(const uint8_t * rawData,size_t size)31 bool FuzzTimeProxyTimer(const uint8_t *rawData, size_t size)
32 {
33 int32_t uid = static_cast<int32_t>(*rawData);
34 TimeServiceClient::GetInstance()->ProxyTimer(uid, true, true);
35 TimeServiceClient::GetInstance()->ProxyTimer(uid, true, false);
36 TimeServiceClient::GetInstance()->ProxyTimer(uid, false, false);
37 TimeServiceClient::GetInstance()->ProxyTimer(uid, false, true);
38
39 std::set<int> pidList;
40 pidList.insert(uid);
41 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, true, true);
42 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, true, false);
43 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, false, false);
44 TimeServiceClient::GetInstance()->ProxyTimer(uid, pidList, false, true);
45
46 return true;
47 }
48
FuzzTimeAdjustTimer(const uint8_t * rawData,size_t size)49 bool FuzzTimeAdjustTimer(const uint8_t *rawData, size_t size)
50 {
51 TimeServiceClient::GetInstance()->AdjustTimer(true, ADJUST_TIMER_INTERVAL);
52 TimeServiceClient::GetInstance()->AdjustTimer(false, 0);
53 return true;
54 }
55
FuzzTimeSetTimerExemption(const uint8_t * rawData,size_t size)56 bool FuzzTimeSetTimerExemption(const uint8_t *rawData, size_t size)
57 {
58 std::string name(reinterpret_cast<const char *>(rawData), size);
59 std::unordered_set<std::string> nameArr{name};
60 TimeServiceClient::GetInstance()->SetTimerExemption(nameArr, false);
61 TimeServiceClient::GetInstance()->SetTimerExemption(nameArr, true);
62 return true;
63 }
64
65 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)66 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
67 {
68 /* Run your code on data */
69 if (data == nullptr) {
70 return 0;
71 }
72
73 if (size < OHOS::U32_AT_SIZE) {
74 return 0;
75 }
76
77 OHOS::FuzzTimeProxyTimer(data, size);
78 OHOS::FuzzTimeAdjustTimer(data, size);
79 OHOS::FuzzTimeSetTimerExemption(data, size);
80 return 0;
81 }
82 }