1 /*
2 * Copyright (c) 2022 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 "abilitymemorylevelinfo_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #define protected public
23 #include "memory_level_info.h"
24 #undef protected
25 #undef private
26 #include "parcel.h"
27 #include <iostream>
28 #include "securec.h"
29 #include "configuration.h"
30
31 using namespace OHOS::AppExecFwk;
32
33 namespace OHOS {
34 namespace {
35 constexpr int INPUT_ZERO = 0;
36 constexpr int INPUT_ONE = 1;
37 constexpr int INPUT_TWO = 2;
38 constexpr int INPUT_THREE = 3;
39 constexpr size_t FOO_MAX_LEN = 1024;
40 constexpr size_t U32_AT_SIZE = 4;
41 constexpr size_t OFFSET_ZERO = 24;
42 constexpr size_t OFFSET_ONE = 16;
43 constexpr size_t OFFSET_TWO = 8;
44 }
45
GetU32Data(const char * ptr)46 uint32_t GetU32Data(const char* ptr)
47 {
48 // convert fuzz input data to an integer
49 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
50 ptr[INPUT_THREE];
51 }
52
DoSomethingInterestingWithMyAPI(const char * data,size_t size)53 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
54 {
55 std::shared_ptr<MemoryLevelInfo>memLevelInfo = std::make_shared<MemoryLevelInfo>();
56 if (memLevelInfo == nullptr) {
57 return false;
58 }
59 Parcel parcel;
60 memLevelInfo->GetProcLevelMap();
61 memLevelInfo->Marshalling(parcel);
62 memLevelInfo->ReadFromParcel(parcel);
63 MemoryLevelInfo::Unmarshalling(parcel);
64 return true;
65 }
66 }
67
68 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)69 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
70 {
71 /* Run your code on data */
72 if (data == nullptr) {
73 return 0;
74 }
75
76 /* Validate the length of size */
77 if (size < OHOS::U32_AT_SIZE || size > OHOS::FOO_MAX_LEN) {
78 return 0;
79 }
80
81 char* ch = (char*)malloc(size + 1);
82 if (ch == nullptr) {
83 std::cout << "malloc failed." << std::endl;
84 return 0;
85 }
86
87 (void)memset_s(ch, size + 1, 0x00, size + 1);
88 if (memcpy_s(ch, size, data, size) != EOK) {
89 std::cout << "copy failed." << std::endl;
90 free(ch);
91 ch = nullptr;
92 return 0;
93 }
94
95 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
96 free(ch);
97 ch = nullptr;
98 return 0;
99 }
100
101