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
16#include "abilityappfreezemanager_fuzzer.h"
17
18#include <cstddef>
19#include <cstdint>
20
21#define private public
22#include "appfreeze_manager.h"
23#undef private
24
25#include "securec.h"
26#include "ability_record.h"
27
28using namespace OHOS::AAFwk;
29using namespace OHOS::AppExecFwk;
30
31namespace OHOS {
32namespace {
33constexpr int INPUT_ZERO = 0;
34constexpr int INPUT_ONE = 1;
35constexpr int INPUT_TWO = 2;
36constexpr int INPUT_THREE = 3;
37constexpr size_t FOO_MAX_LEN = 1024;
38constexpr size_t U32_AT_SIZE = 4;
39constexpr size_t OFFSET_ZERO = 24;
40constexpr size_t OFFSET_ONE = 16;
41constexpr size_t OFFSET_TWO = 8;
42}
43uint32_t GetU32Data(const char* ptr)
44{
45    // convert fuzz input data to an integer
46    return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
47        ptr[INPUT_THREE];
48}
49
50bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
51{
52    FaultData faultData;
53    OHOS::AppExecFwk::AppfreezeManager::AppInfo appInfo;
54    AppfreezeManager::ParamInfo info;
55    auto freeze = AppfreezeManager::GetInstance();
56    if (!freeze) {
57        return false;
58    }
59    freeze->AppfreezeHandle(faultData, appInfo);
60    freeze->AppfreezeHandleWithStack(faultData, appInfo);
61    freeze->LifecycleTimeoutHandle(info);
62    std::string fileName(data, size);
63    std::string bundleName(data, size);
64    freeze->IsHandleAppfreeze(bundleName);
65    int32_t pid = static_cast<int32_t>(GetU32Data(data));
66    std::string processName(data, size);
67    freeze->IsProcessDebug(pid, processName);
68    freeze->IsNeedIgnoreFreezeEvent(pid);
69    freeze->CancelAppFreezeDetect(pid, bundleName);
70    freeze->ResetAppfreezeState(pid, bundleName);
71    freeze->IsValidFreezeFilter(pid, bundleName);
72    std::string stack(data, size);
73    freeze->GetBinderPeerPids(stack, pid);
74    std::string ret(data, size);
75    freeze->FindStackByPid(ret, pid);
76    std::string faultType(data, size);
77    freeze->CatchJsonStacktrace(pid, faultType);
78    freeze->CatcherStacktrace(pid);
79    std::string memoryContent(data, size);
80    freeze->AcquireStack(faultData, appInfo, memoryContent);
81    std::string binderInfo(data, size);
82    freeze->NotifyANR(faultData, appInfo, binderInfo, memoryContent);
83    int state = static_cast<int>(GetU32Data(data));
84    freeze->SetFreezeState(pid, state);
85    freeze->GetFreezeState(pid);
86    freeze->GetFreezeTime(pid);
87    return true;
88}
89}
90
91/* Fuzzer entry point */
92extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
93{
94    /* Run your code on data */
95    if (data == nullptr) {
96        std::cout << "invalid data" << std::endl;
97        return 0;
98    }
99
100    /* Validate the length of size */
101    if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
102        return 0;
103    }
104
105    char* ch = (char*)malloc(size + 1);
106    if (ch == nullptr) {
107        std::cout << "malloc failed." << std::endl;
108        return 0;
109    }
110
111    (void)memset_s(ch, size + 1, 0x00, size + 1);
112    if (memcpy_s(ch, size + 1, data, size) != EOK) {
113        std::cout << "copy failed." << std::endl;
114        free(ch);
115        ch = nullptr;
116        return 0;
117    }
118
119    OHOS::DoSomethingInterestingWithMyAPI(ch, size);
120    free(ch);
121    ch = nullptr;
122    return 0;
123}
124
125