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 "abilitystubforceexitapp_fuzzer.h"
17
18 #include <cstddef>
19 #include <cstdint>
20
21 #include "ability_manager_service.h"
22 #include "message_parcel.h"
23 #include "securec.h"
24
25 using namespace OHOS::AAFwk;
26
27 namespace OHOS {
28 namespace {
29 constexpr size_t FOO_MAX_LEN = 1024;
30 constexpr size_t U32_AT_SIZE = 4;
31 }
32 const std::u16string ABILITYMGR_INTERFACE_TOKEN = u"ohos.aafwk.AbilityManager";
33
DoSomethingInterestingWithMyAPI(const char * data,size_t size)34 bool DoSomethingInterestingWithMyAPI(const char* data, size_t size)
35 {
36 uint32_t code = static_cast<uint32_t>(AbilityManagerInterfaceCode::FORCE_EXIT_APP);
37
38 MessageParcel parcel;
39 parcel.WriteInterfaceToken(ABILITYMGR_INTERFACE_TOKEN);
40 parcel.WriteBuffer(data, size);
41 parcel.RewindRead(0);
42 MessageParcel reply;
43 MessageOption option;
44 DelayedSingleton<AbilityManagerService>::GetInstance()->OnRemoteRequest(code, parcel, reply, option);
45
46 return true;
47 }
48 }
49
50 /* Fuzzer entry point */
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)51 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
52 {
53 /* Run your code on data */
54 if (data == nullptr) {
55 std::cout << "invalid data" << std::endl;
56 return 0;
57 }
58
59 /* Validate the length of size */
60 if (size > OHOS::FOO_MAX_LEN || size < OHOS::U32_AT_SIZE) {
61 return 0;
62 }
63
64 char* ch = static_cast<char*>(malloc(size + 1));
65 if (ch == nullptr) {
66 std::cout << "malloc failed." << std::endl;
67 return 0;
68 }
69
70 (void)memset_s(ch, size + 1, 0x00, size + 1);
71 if (memcpy_s(ch, size, data, size) != EOK) {
72 std::cout << "copy failed." << std::endl;
73 free(ch);
74 ch = nullptr;
75 return 0;
76 }
77
78 OHOS::DoSomethingInterestingWithMyAPI(ch, size);
79 free(ch);
80 ch = nullptr;
81 return 0;
82 }
83
84