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 "insightintentexecutecallbackstub_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #define private public
22 #include "insight_intent_execute_callback_stub.h"
23 #undef private
24
25 #include "ability_record.h"
26
27 using namespace OHOS::AAFwk;
28 using namespace OHOS::AppExecFwk;
29
30 namespace OHOS {
31 namespace {
32 constexpr int INPUT_ZERO = 0;
33 constexpr int INPUT_ONE = 1;
34 constexpr int INPUT_TWO = 2;
35 constexpr int INPUT_THREE = 3;
36 constexpr size_t FOO_MAX_LEN = 1024;
37 constexpr size_t U32_AT_SIZE = 4;
38 constexpr size_t OFFSET_ZERO = 24;
39 constexpr size_t OFFSET_ONE = 16;
40 constexpr size_t OFFSET_TWO = 8;
41 constexpr uint8_t ENABLE = 2;
42 } // namespace
43
44 const std::u16string APPMGR_INTERFACE_TOKEN = u"ohos.aafwk.AppManager";
45
46 class InsightIntentExecuteCallbackStubFuzzTest : public InsightIntentExecuteCallbackStub {
47 public:
48 InsightIntentExecuteCallbackStubFuzzTest() = default;
~InsightIntentExecuteCallbackStubFuzzTest()49 virtual ~InsightIntentExecuteCallbackStubFuzzTest()
50 {}
OnExecuteDone(uint64_t key,int32_t resultCode,const AppExecFwk::InsightIntentExecuteResult & executeResult)51 void OnExecuteDone(uint64_t key, int32_t resultCode,
52 const AppExecFwk::InsightIntentExecuteResult &executeResult) override {}
53 };
54
GetU32Data(const char * ptr)55 uint32_t GetU32Data(const char* ptr)
56 {
57 // convert fuzz input data to an integer
58 return (ptr[INPUT_ZERO] << OFFSET_ZERO) | (ptr[INPUT_ONE] << OFFSET_ONE) | (ptr[INPUT_TWO] << OFFSET_TWO) |
59 ptr[INPUT_THREE];
60 }
61
DoSomethingInterestingWithMyAPI(const char * data,size_t size)62 bool DoSomethingInterestingWithMyAPI(const char *data, size_t size)
63 {
64 uint32_t code = static_cast<uint32_t>(GetU32Data(data));
65 std::shared_ptr<InsightIntentExecuteCallbackStub> backStub =
66 std::make_shared<InsightIntentExecuteCallbackStubFuzzTest>();
67 MessageParcel dataParcel;
68 MessageParcel reply;
69 MessageOption option;
70 dataParcel.WriteInterfaceToken(APPMGR_INTERFACE_TOKEN);
71 dataParcel.WriteBuffer(data, size);
72 dataParcel.RewindRead(0);
73 backStub->OnRemoteRequest(code, dataParcel, reply, option);
74 backStub->OnExecuteDoneInner(dataParcel, reply);
75
76 return true;
77 }
78 } // namespace OHOS
79
80 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)81 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
82 {
83 /* Run your code on data */
84 if (data == nullptr) {
85 std::cout << "invalid data" << std::endl;
86 return 0;
87 }
88
89 /* Validate the length of size */
90 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
91 return 0;
92 }
93
94 char *ch = static_cast<char*>(malloc(size + 1));
95 if (ch == nullptr) {
96 std::cout << "malloc failed." << std::endl;
97 return 0;
98 }
99
100 (void)memset_s(ch, size + 1, 0x00, size + 1);
101 if (memcpy_s(ch, size + 1, data, size) != EOK) {
102 std::cout << "copy failed." << std::endl;
103 free(ch);
104 ch = nullptr;
105 return 0;
106 }
107
108 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
109 free(ch);
110 ch = nullptr;
111 return 0;
112 }